DisplayTag使用指南
GSK980TDb 车床CNC使用手册(2010年3月第2版)--2010-03-23定稿
1.3.4 插补功能 ................................................................................................................................8
1.3.5 绝对坐标编程和相对坐标编程 ................................................................................................9
警 告！
z 在对本产品进行安装连接、编程和操作之前，必须详细阅读本产品手册 以及机床制造厂的使用说明书，严格按手册与说明书等的要求进行相关 的操作，否则可能导致产品、机床损坏，工件报废甚至人身伤害。
注 意！
z 本手册描述的产品功能、技术指标（如精度、速度等）仅针对本产品， 安装了本产品的数控机床，实际的功能配置和技术性能由机床制造厂的 设计决定，数控机床功能配置和技术指标以机床制造厂的使用说明书为 准；
一 篇
1.1 GSK980TDB 介绍..........................................................................................................................1
1.1.1 产品简介 ................................................................................................................................1 编
displaytag的使用方法
displaytag的使用方法（用于数据表格的显示和功能控制）displaytag的使用方法（用于数据表格的显示和功能控制）Displaytag1.1版本使用方法一、安装步骤1. 下载displaytag-1.1-bin.zip后解压缩并将displaytag-examples-1.1.war中的WEB-INF/lib类包放入自己的web应用程序中的WEB-INF/lib目录下，并将WEB-INF/classes中的displaytag.properties放入到自己web应用程序中的WEB-INF/classes目录下。
2. 将displaytag-examples-1.1.war中的资源文件放置到与自己web 应用程序同级的目录中，资源文件包括css，images，img三个文件夹下的所有内容。
二、使用方法1、得到要显示的数据源有四种范围pageScoperequestScope (默认) <display:table name="test" >sessionScope <display:table name="sessionScope.sessiontest" > 注意，这里要指定范围applicationScope 同上2、全部数据显示<% request.setAttribute( "test", new TestList(20, false) ); %><display:table name="test" ></display:table>标签将遍历List里的每一个对象，并将对象里的所有属性显示出来。
name属性用来对应list对象的名称3、部分数据显示<% request.setAttribute( "test", new TestList(20, false) ); %><display:table name="test" ><display:column property="id" title="ID"/><display:column property="name" title="姓名" /><display:column property="email" title="电子邮件"/><display:column property="url" title="网址"/><display:column property="money" title="Money"/></display:table>property对应List里对象的属性（用getXXX()方法取得），title则对应表格表头里的列名。
华为AR系列路由器 01-01 使用display命令查看设备状态
图 1-1 Equipment SN(ESN)
文档版本 08 (2020-08-31)
版权所有 © 华为技术有限公司
4
Huawei AR 系列物联网关 配置指南-设备管理（命令行）
1 使用 display 命令查看设备状态
1.1.2.2 Q 如何查看单板的序列号？
通过命令行查看
通过Telnet或者Console口登录设备，用户视图下输入命令display sn [ [ interface ] abnormal | all | interface interface-type interface-number | license | slot slotid ]，查看设备上部件的序列号SN（Serial Number）。
常见问题回答
1.1.1.1 Q 如何查看单板状态是否正常？
执行命令display device [ slot slot-id ]，查看设备的部件类型和状态信息。当 Register显示为Registered，Alarm显示为Normal时，表示单板状态是正常的。
说明
该状态为硬件管理状态，不包含业务运行状态。
------------------------------------------------------------------------------Board Name : AR531-GBP-H Board Description : AR531-GBP-H
-------------------------------------------------------------------------------
文档版本 08 (2020-08-31)
版权所有 © 华为技术有限公司
DISPLAY的定义和用法
DISPLAY的定义和⽤法定义和⽤法display 属性规定元素应该⽣成的框的类型。
说明这个属性⽤于定义建⽴布局时元素⽣成的显⽰框类型。
对于 HTML 等⽂档类型，如果使⽤ display 不谨慎会很危险，因为可能违反 HTML 中已经定义的显⽰层次结构。
对于 XML，由于 XML 没有内置的这种层次结构，所有 display 是绝对必要的。
注释：CSS2 中有值 compact 和 marker，不过由于缺乏⼴泛的⽀持，已经从 CSS2.1 中去除了。
默认值：inline继承性：no版本：CSS1JavaScript 语法：object.style.display="inline"可能的值值描述none此元素不会被显⽰。
block此元素将显⽰为块级元素，此元素前后会带有换⾏符。
inline默认。
此元素会被显⽰为内联元素，元素前后没有换⾏符。
inline-block⾏内块元素。
（CSS2.1 新增的值）list-item此元素会作为列表显⽰。
run-in此元素会根据上下⽂作为块级元素或内联元素显⽰。
compact CSS 中有值 compact，不过由于缺乏⼴泛⽀持，已经从 CSS2.1 中删除。
marker CSS 中有值 marker，不过由于缺乏⼴泛⽀持，已经从 CSS2.1 中删除。
table此元素会作为块级表格来显⽰（类似 <table>），表格前后带有换⾏符。
inline-table此元素会作为内联表格来显⽰（类似 <table>），表格前后没有换⾏符。
table-row-group此元素会作为⼀个或多个⾏的分组来显⽰（类似 <tbody>）。
table-header-group此元素会作为⼀个或多个⾏的分组来显⽰（类似 <thead>）。
table-footer-group此元素会作为⼀个或多个⾏的分组来显⽰（类似 <tfoot>）。
displaytag标签使用
Displaytag标签使用【简介Introduction】DisplayTag是一个开源的自定义标签库（Custom Tag lib），他提供了直接而有效的格式化web视图层数据的有效手段。
你可以在现在流行的web应用的MVC模式中集成DisplayTag到View层，其提供的强大表格格式化功能一定会令你爱不释手。
或许上面说的有些夸张了，但是DisplayTag在表格的格式化方面表现确实出色，当然，他也只能显示表格，视图层的大部分工作不就是使用表格来格式化数据嘛？！1. 环境配置我们在 MyEclipse中创建一个名为 testDisplay的 Web工程。
将下载的display.zip下 lib目录下的 jar包拷贝到 WebRoot/WEB-INF/lib目录下。
另外还需要在 web.xml文件中增加如下配置:Xml代码<?xml version="1.0"encoding="UTF-8"?><web-app version="2.5"xmlns="/xml/ns/javaee"xmlns:xsi="/2001/XMLSchema-instance"xsi:schemaLocation="/xml/ns/javaee/xml/ns/javaee/web-app_2_5.xsd"><filter><filter-name>exportFilter</filter-name><filter-class>org.displaytag.filter.ResponseOverrideFilter</filte r-class></filter><servlet><description>This is the description of my J2EE component</description><display-name>This is the display name of my J2EE component</display-name><servlet-name>pageServlet</servlet-name><servlet-class>pageDao.pageServlet</servlet-class><init-param><param-name>pagesize</param-name><param-value>2</param-value></init-param></servlet><servlet-mapping><servlet-name>pageServlet</servlet-name><url-pattern>/servlet/pageServlet</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>实例注意：1、导入testDisplay项目后，在mysql中建立test库，并将commodity.sql导入commodity表。
NORMA 4000 5000 Power Analyzer 用户说明手册说明书
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Fluke gewährleistet, daß jedes Fluke-Produkt unter normalem Gebrauch und Service frei von Material- und Fertigungsdefekten ist. Die Garantiedauer beträgt 2 Jahre ab Versanddatum. Die Garantiedauer für Teile, Produktreparaturen und Service beträgt 90 Tage. Diese Garantie wird ausschließlich dem Erster
使用displaytag分页方法
使用displaytag分页方法说明●第一步：在官网下载displaytag jar包，下载到displaytag.war文件●第二部：把diapalytag.war 文件放到Tomcat工作目录下，运行tomcat，得到displaytag文件夹，打开文件夹，里面是一些例子，在WEB-INF目录下lib文件夹有jar 包，导入选中的jar 文件。
再下载jar 包（可以在apache官网下载，可以百度包名/）●第三步：选择要分页的jsp页面，然后修改页面修改前的页面，（中文乱码忽略）其中上下包含文件就是页面的样式，不做更改。
修改后的页面：说明：只要页面显示的变量是list集合传递过来的就可以用该分页。
1.添加标签库：<%@taglib uri="" prefix="display"%> <display:table>中name属性表示servlet中的集合传递过来的值的list集合形式，如下：servlet 中的list属性对应name 中的属性list。
2.pagesize=""属性表示分页时每页显示的数目。
3.requestURI=""属性表示在点击下一页时，会要先访问的地址，然后才能查出下一页内容，如果不加，点击下一页，无法显示内容。
4.上面的图中表示，列的属性值，其中property 中的属性要与项目中的java 代码中的model 类中的属性相同。
否则无法显示，title显示列的汉字。
比如：sql语句查出的内容相关，比如5.到这一步基本就能显示出表中的信息了，然后就是给表中添加属性实现具体的功能了。
然后呈现的就是，点分页的那些按钮都是英文的，接下来我们需要实现的就是把英文的字符变成中文的，具体步揍如下：①打开下载好的displaytag文件（displaytag文件即是下载好的displaytag.war 文件在tomcat根目录下的webApps文件夹中运行后产生的文件。
DisplayTag详解
DisplayTag 详解简介Introduction 】DisplayTag 是一个开源的自定义标签库 ( Custom Tag lib )，他提供了直接而有效的格式化web 视图层数据的有效手段。
你可以在现在流行的web 应用的MVC 模式中集成DisplayTag 到View 层，其提供的强大表格格式化功能一定会令你爱不释手。
或许上面说的有些夸张了，但是DisplayTag 在表格的格式化方面表现确实出色，当然，他也只能显示表格，视图层的大部分工作不就是使用表格来格式化数据嘛？！好了，让我们通过图片来看看他是一个什么样子吧“怎么样？是不是感觉不错那？如果答案是肯定的，那么你一定急着想自己试一试咯？！不要急，下面就让我们开始我们的DisplayTag 之旅。
[b]【Hello DisplayTag 】[/b] 既然是一个tutorial ，所以，我们不想对像自定义标签的实现原理等进行解释，也就是说在此之前，我们假定你已经对自定义标签有一定的认识，当然，没有也无所谓，等这篇tutorial完成后，你估计就会了解的差不多了。
呐，让我们从最简单的displaytag 的使用开始，就跟你的第个程序往往是从HelloWorld 程序开始一样。
先忽略其他的配置问题，我们的JSP 文件的源代码如下：实际上，除去初始化和数据准备等操作，生成表格的代码只有行，那就是：而他生成的表格就是这样的：怎么样？是不是很简单那？简单的代码就可以生成如此漂亮的表格，你有理由不用嘛？（因为使用了Struts 的LabelValueBean ，所以表格上显示了原始的title ，不用着急，后面我们将会说道如何修改成你所期待的样子）[b] 【配置configuration 】[/b]Ok ，在我们运用DisplayTag 之前，我们需要对他的使用环境进行一些配置，或许有些复杂，但是，如果你是一个WebApp 老手的话，其实并不难。
display的用法及其词组
display的用法及其词组一、display的用法概述display是一个常见的英语动词，表示展示、显示、陈列等意思。
它可以用于不同的语境和句型中，根据不同情况下的词组搭配而有所差异。
在本文将详细介绍display的用法及其常见词组，以帮助读者更好地理解和运用该词。
二、display作为动词1. 表示展示或显示Display可以用来描述物体、图像、信息等展示或显示出来，通常与名词搭配使用。
例如：The shop displayed a variety of products in its windows.2. 表现、显露Display也可表示某种行为或特质在外界中显现出来。
例如：He displayed great courage during the crisis.3. 展开、揭露在特定语境中，display也可以被用于表示展开或揭露某些事物。
例如：She displayed her talent by performing a beautiful song on stage.4. 展览、陈列Display还可表示在博物馆、画廊等场所展览展示物品。
例如：The museum is displaying an ancient artifact from Egypt.三、常见词组及例句1. display something to somebody这个短语通常用于商业场景或教育环境下，表示向某人展示某物。
例如：The presenter displayed the new product to the audience.2. display something on something这个词组常用于描述将某物展示在另一个物体上，如将图片或信息展示在屏幕、电视上等。
例如：He displayed the presentation slides on the screen.3. display something for everybody to see这一短语用来表示公开展示某物，供所有人看到。
PIVview_v24_Manual
PIVTECPIVVIEW2C/3CVersion 2.4User ManualIIPIVview User ManualPIVTEC GMBHStauffenbergring 21 D-37075 Göttingen Germany Tel. Fax +49(0)551 205 29 170 +49(0)551 205 29 176 +49(0)2232 152849Email: info@ Homepage: Version 2.4 – 15 April 2006PIVview User Manual Copyright © 2001-2006 PIVTEC GmbH. All Rights reserved worldwide. No part of PIVview software or documentation may be reproduced, transmitted, transcribed, disassembled, reverse engineered, stored in a retrieval system, or translated in any form without the express written permission of PIVTEC GmbH. WarrantyIIIPIVTEC GmbH (PivTec) warrants that the PIVview computer program and documentation will substantially conform to published specifications. PIVTEC also warrants that the media (CD-ROM) used to transfer the software is free from defects in material and workmanship and that the software is free from substantial programming errors for a period of six (6) months from the date of purchase, unless a longer period is required by local law. During this period defective media will be replaced and substantial programming errors in the software will be corrected by PIVTEC with no charge. If PIVTEC is unable to replace defective media or correct substantial programming errors within sixty (60) days after notification of the defect or error, PIVTEC will refund the license fee to the licensee. There are your sole remidies for any breach of warranty.Disclaimer of WarrantiesYOU EXPRESSLY ACKNOWLEDGE AND AGREE THAT USE OF THE PIVTEC SOFTWARE IS AT YOUR SOLE RISK AND THAT THE ENTIRE RISK AS TO SATISFACTORY QUALITY, PERFORMANCE, ACCURACY AND EFFORT IS WITH YOU. EXCEPT FOR THE LIMITED WARRANTY ON MEDIA SET FORTH ABOVE AND TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE PIVTEC SOFTWARE IS PROVIDED „AS IS“, WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND, AND PIVTEC HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH RESPECT TO THE PIVTEC SOFTWARE, EITHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES AND/OR CONDITIONS OF MERCHANTABILITY, OF SATISFACTORY QUALITY, OF FITNESS FOR A PARTICULAR PURPOSE, OF ACCURACY, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. PIVTEC DOES NOT WARRANT, THAT THE FUNCTIONS CONTAINED IN THE PIVTEC SOFTWARE WILL MEET YOUR REQUIREMENTS, THAT THE OPERATION OF THE PIVTEC SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE, OR THAT DEFECTS IN THE PIVTEC SOFTWARE WILL BE CORRECTED. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY PIVTEC OR A PIVTEC AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY. SHOULD THE PIVTEC SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE ENTIRE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR LIMITATIONS ON APPLICABLE STATUTORY RIGHTS OF A CONSUMER, SO THE ABOVE EXCLUSION AND LIMITATIONS MAY NOT APPLY TO YOU.Limitation of LiabilityTO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT SHALL PIVTEC BE LIABLE FOR PERSONAL INJURY, OR ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHATSOEVER, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, LOSS OF DATA, BUSINESS INTERRUPTION OR ANY OTHER COMMERCIAL DAMAGES OR LOSSES, ARISING OUT OF OR RELATED TO YOUR USE OR INABILITY TO USE THE PIVTEC SOFTWARE, HOWEVER CAUSED, REGARDLESS OF THE THEORY OF LIABILITY (CONTRACT, TORT OR OTHERWISE) AND EVEN IF PIVTEC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME JURISDICTIONS DO NOT ALLOW THE LIMITATION OF LIABILITY FOR PERSONAL INJURY, OR OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THIS LIMITATION MAY NOT APPLY TO YOU. In no event shall PIVTEC‘s total liability to you for all damages (other than as may be required by applicable law in cases involving personal injury) exceed the original purchase cost of the PIVTEC software. The foregoing limitations will apply even if the above stated remedy fails of its essential purpose. PIVTEC RESERVES THE RIGHT TO MAKE CHANGES FROM TIME TO TIME IN THE CONTENTS OF PIVTEC SOFTWARE WITHOUT OBLIGATION OF PIVTEC TO NOTIFY YOU AS A LICENSE HOLDER OF SUCH REVISIONS OR CHANGES.AcknowledgementsThe PIVTEC Software was and continues to be developed in close cooperation with the Institute of Aerodynamics and Flow Technology of the German Aerospace Center (DLR) in Goettingen, Germany.Copyrights and TrademarksnetCDF — (network Common Data Format) Data Format Software Library and Utilities, © 1993-2005 University Corporation for Atmospheric Research/Unidata. All right reserved. () Tecplot — Amtec Engineering, Inc. Microsoft, Visual C++, Windows, Windows Metafile — Microsoft Corporation. All other product names are trademarks or registered trademarks of their respective owners.IVPIVview User ManualContentsOverview of PIVview ..............................................................................................................1 Background...........................................................................................................................1 Features................................................................................................................................1 Upcoming features................................................................................................................1 What PIVview is not..............................................................................................................1 PIVview Versions..................................................................................................................2 Credits ..................................................................................................................................2 System Requirements............................................................................................................3 Installation Method A ............................................................................................................3 Installation Method B ............................................................................................................3 What is installed where ?......................................................................................................3 Removing PIVview................................................................................................................3 Getting acquainted with PIVview ..........................................................................................5 Title bar.................................................................................................................................5 Menu bar...............................................................................................................................5 Main window .........................................................................................................................6 Main Window - Reference Vector .....................................................................................6 Main Window - Scroll Bars ................................................................................................6 Status Bar .........................................................................................................................6 The PIVview Menu Entries.....................................................................................................7 The File Menu.......................................................................................................................7 The Image Menu...................................................................................................................7 The PIV menu.......................................................................................................................8 The Plot menu ......................................................................................................................9 The Window menu................................................................................................................9 The Help menu .....................................................................................................................9 The PIVview Toolbars ..........................................................................................................10 The PIVview Dialogs ............................................................................................................11 The Image Pre-Processing Menu .......................................................................................11 Tab General ....................................................................................................................11 Tab Filters .......................................................................................................................11 Tab Background..............................................................................................................12 Tab Mask ........................................................................................................................12 PIV Evaluation Setup..........................................................................................................13 PIV Evaluation Setup – Grid ...........................................................................................13 PIV Evaluation Setup – Correlation.................................................................................14 Phase-correlation (Phase only correlation) .....................................................................14 Multiple Correlation .........................................................................................................14 PIV Evaluation Setup – Algorithm ...................................................................................15 Advanced PIV Processing options ..................................................................................17 PIV Evaluation Setup – Peak Detection..........................................................................18 PIV Evaluation Setup - Outliers.......................................................................................20 PIV Evaluation Setup - Conversion.................................................................................22 PIV Evaluation Setup – Filters etc...................................................................................23 Region of Interest.................................................................................................................24 Plot Configuration Menu......................................................................................................25 Vector Plotting Parameters.................................................................................................25 Outlier display .................................................................................................................25 Offset Vector ...................................................................................................................25 Color Coding ...................................................................................................................26 Vector Style.....................................................................................................................26 Contour Plotting Parameters ..............................................................................................27 Contour Type ..................................................................................................................27 Contour Display Range ...................................................................................................28PIVview User ManualVAxis Plotting Parameters ....................................................................................................29 Reference Vector................................................................................................................30 Fonts / Colors .....................................................................................................................30 The Preferences Menu .........................................................................................................31 File Extensions ...................................................................................................................31 Correlation Plane Window...................................................................................................32 Global Histogram Window...................................................................................................33 1-D PDFs and Peak Locking ..............................................................................................34 Batch PIV Processing ..........................................................................................................35 Batch Processing Options ..................................................................................................36 Batch Processing Output Options.......................................................................................36 Definition of statistics terms ................................................................................................37 PIVmask - Image Mask Editor .............................................................................................38 File Menu ............................................................................................................................38 View Menu ..........................................................................................................................38 Draw Menu .........................................................................................................................39 Stereo PIV Modules..............................................................................................................40 Stereo PIV Procedure in PIVview3C ..................................................................................40 Vector reconstruction in stereo PIV ....................................................................................41 Enabling the Stereo Mode ..................................................................................................41 Stereo Menu Options & Toolbar .........................................................................................41 Creating a new stereo project with PIVmap3.....................................................................43 Background on Stereo PIV .................................................................................................43 The program PIVmap3 .......................................................................................................45 Grid reconstruction in PIVmap ........................................................................................45 Calculation of the mapping function ................................................................................47 PIVmap3 Input Menu ......................................................................................................48 PIVmap3 Calibration Area...............................................................................................50 Helper axis ......................................................................................................................53 Description of the PIVmap3 menu entries ..........................................................................53 Menu View ......................................................................................................................53 Menu Mapping ................................................................................................................54 Menu Tools .....................................................................................................................54 Creating a new stereo project with StereoWizard.............................................................56 StereoGeom - Geometry Definition ....................................................................................58 PIVmapT01 - Projection Module..........................................................................................59 Some notes on obtaining calibration grid images ...............................................................59 PIVmapT01 Toolbars & Menu Options ...............................................................................60 PIVmapT01 Tab Dialog ......................................................................................................61 PIVmapT01 Dialog - Detect Lines...................................................................................62 PIVmapT01 Dialog – Mesh & Map..................................................................................63 PIVmapT01 Dialog – Projection ......................................................................................64 Stereo View Disparity Correction .......................................................................................65 Disparity Correction Tool Buttons: ......................................................................................65 Command-Line Utility Programs ........................................................................................67 AVERAGE ..........................................................................................................................67 DPIV ...................................................................................................................................67 DPIV3C...............................................................................................................................68 IMAGEPRE.........................................................................................................................70 NCDF2TEC.........................................................................................................................70 NCDUMP ............................................................................................................................71 NCGEN...............................................................................................................................71 POSTPROC........................................................................................................................71 STEREO .............................................................................................................................72 Shortcut keys in PIVview.....................................................................................................73 Mouse ShortCuts & Actions................................................................................................73VIPIVview User ManualSupported File Formats .......................................................................................................74 Supported Image Formats ..................................................................................................74 Image naming and numbering conventions........................................................................74 Supported Output File Formats ..........................................................................................75 References and Further Reading........................................................................................75Overview of PIVviewBackgroundPIVview is a compact program package for the evaluation of particle image velocimetry (PIV) or speckle displacement recordings. Its original and primary intention was to provide a quicklook data retrieval from PIV recordings. Experience has shown that this quick-look capability is essential in the optimization of the acquisition process.FeaturesDuring its development PIVview has matured from a simple PIV image probing program to a (nearly) complete PIV evaluation package including: • advanced processing algorithms: - multiple-pass method - mulitple-grid (pyramid) method - double-correlation method - second order, image deformation methods - various peak detectors and fitting algorithms) - ensemble correlation classical and nonlinear peak detection image pre-processing (various filters, masking) region of interest selection interactive calibration outlier detection and replacement data postprocessing (vorticity, strain) vector and contour display / print capability data export (TecPlot, ASCII and netCDF) PIV data import for further post-processing WYSIWYG export using BMP, PNG, and others batch processing of image and data sequences data set statistics calculation stereo PIV processing capabilities drag-and-drop capabilities mask editing command-line programs• • • • • • • • • • • • • • • •Since version 2.0 PIVview’s user interface has been making use of the platform-independent QT-library (Trolltech, ) and can be made available on most Unix systems (e.g.. Linux, Solaris).Upcoming featuresSince PIVview is a continuously evolving program suite; new features and improvements are constantly added. PIVTEC is always open to new suggestions and encourages users to forward these as well as any bug reports.What PIVview is notPIVview does not include any form of data acquisition such as PIV camera and laser control, experiment synchronization, etc. This guarantees that the program can be operated on any PC-system running a 32-bit Windows operating system. Also PIVview has no intention of replacing the capabilities of full-featured plotting packages such as TecPlot or Origin. The plotting capabilities of PIVview merely provide the user with visual feedback of the processing results while also providing the capability of quickly obtaining a hardcopy of the calculated data.2PIVview User ManualPIVview VersionsTwo versions of PIVview are available: a demo version as well as a licensed version. The demo version - downloadable from PIVTEC’s internet server - provides nearly all features of the licensed version except for data-export and batch-processing. The demo version can be distributed freely and is especially useful for optimizing a PIV experiment or for demonstrating the principles of PIV evaluation. Full use of all of PIVview‘s features is only possible by obtaining a license through PIVTEC GmbH.CreditsPIVview was conceived and is maintained by C. Willert, PIVTEC GmbH, Göttingen (Germany), and developed in close cooperation with the PIV-Group of the German Aerospace Center (DLR) in Göttingen.PIVview User Manual3System RequirementsPIVview should run on essentially any of today’s Windows operating systems. • • • • • 32-bit Microsoft Windows (tested on Windows versions 95, 98, NT4, 2000, XP) Pentium class processor >32 MB of RAM (depending on Windows version) 256-color SVGA or better graphics display hard disk space: program executables: ~5 MB example files: ~30 MB utility programs: ~4 MBIf you merely want to try out PIVview you need not install it on your system. The program can be run from the CD-ROM by double clicking the PivView2CDemo.exe file. Alternatively PIVview can be installed from the setup CD-ROM in several ways:Installation Method A1. Put the PIVview CD-ROM into your CD-ROM drive. 2. In your file browser double click the file autorun.exe. This starts an installation option dialog. 3. From there the setup procedure can be initiated. Alternatively, the documentation or latest release notes can be viewed. 4. Follow the instructions in the installation program.Installation Method B1. Put the PIVview CD-ROM into your CD-ROM drive. 2. From the Windows Start button click Run. 3. Type the following Run command line: D:\PIVVIEW2\SETUP\SETUP.EXE (If necessary substitute the appropriate drive letter for your CD-ROM drive in the above command.) 4. Follow the instructions in the installation program.What is installed where ?By default the PIVview program and its associated files are installed in the system’s Programs or Program Files directory. Other destinations can be chosen during setup. All(!) files associated with PIVview are copied into this directory tree, that is, no files are copied to the Windows system directories. This also means that the program can be removed efficiently by deleting this directory although the system’s uninstall method should be preferred. Aside from the files, the installation programs installs a few short cuts to the system’s start menu. PIVview makes extensive use of the Windows registry to store its current configuration settings. These are located under: \HKEY_LOCAL_MACHINE\Software\PivTec\PIVview2Removing PIVviewThe best way to remove PIVview is to use the Uninstaller which is part of the Windows operating system (found under Configuration\Software).4PIVview User ManualAlternatively the software is completely removed by deleting the PIVview installation directory. This however does not remove the registry entries associated with PIVview.Getting acquainted with PIVviewThe user interface of PIVview is similar to many common Microsoft Windows based applications and features:- a title bar- a menu bar- several toolbars- a main window to view data (workspace)- a status barPIVview is based on a single document software architecure, that is, only one image (pair) can be opened by each PIVview instance. If you need to open several PIV images simultaneously you need to start several instances of PIVview which can be started through the menu option: File/New Window. (Please note that the settings of last PIVview instance closed are stored in the registry.)Main window of PivView with image pair loaded and interactively sampled interrogation vectors.The intensity LUT is displayed on the left. The top-left shows a reference scale vector.Title barThe title bar displays the file name(s) of currently loaded image or data file(s) and PIVview’s current mode of operation (e.g. cross-correlation, autocorrelation or speckle shift mode). Menu barThe menu bar is used to perform any required operation within PIVview and contains seven sub-menus:- File for loading images, saving data, setting preferences or exiting the program;- Image for basic image display related functions (brightness, look-up tables, zoom, etc.) as well as image enhancement;- PIV for performing PIV analysis, defining PIV interrogation parameters or regions of interest;- Plot for configuration of plotting parameters or exporting a plot of the currently displayed data;- Windows to activate additional data display windows such as correlation plane, 2-D and 1-D histograms, or data probing menu;- Help to display PIVview version information or available program options.Main windowOnce loaded, PIV images are displayed in the main window. Image pairs are displayed by by selecting the brightest pixels from both images.The image (pair) can be interactively interrogated at any position using the left mouse button. The interrogation parameters for cross-correlation analysis are defined in various setup menus. The results of the correlation analysis are displayed in the status bar at the bottom as well as in the form of a color-coded vector (defined in the Plot/Vector setup menu).Main window - Lookup tableA lookup table (LUT) is used to convert image intensities to screen intensities or colors. The image above shows the currently selected LUT as a vertical bar on the left — in this case a linear intensity ramp with 0 (black) at the bottom and 255 (white) at the top.The number at the top of the LUT represents the intensity of brightest display pixel. The image brightness can be changed by using the menu entries Image/Brigher or Image/Darker or the short-cut keys‚ b and d, respectively. Pixel intensities exceeding the maximum display intensity are either clipped at the maximum or wrap back to the bottom of the LUT (Image/Clipping).The display of the LUT can be turned off with the menu option Image/Hide LUT.Main Window - Reference VectorThe reference vector‘s main purpose is to have a visual reference when a complete data set is plotted or exported. It‘s magnitude and display is defined via Plot/PlotConfig./Ref.Vector. Main Window - Scroll BarsThe scroll bars on the right side and bottom edge of the main window can be used to pan the image to a different viewport if the entire image does not fit into the display window.Status BarThe status bar generally reports the cursor position in both image units [pixels] as well as physical coordinates. Also the image intensity is given. In case of interactive interrogation, the correlation result is shown (e.g. position, displacement, velocity, correlation coefficient).If the image has been evaluated these fields provide information about the data point closest to the cursor.Note: Many of the toolbar buttons and menu entries only become active if image or data is available.。
实现把JSP文件导出为PDF文件
实现把JSP文件导出为PDF文件不是技术，而是那种探索的方法。
经过学习DisplayTag，我可以触类旁通，再学习别的标签会很快。
现在总结出来和大家分享下我刚工作不久，经理要我实现把JSP文件导出为PDF文件。
我想找一个比较简单，易于开发，易于维护的某中方法。
在网上碰到我以前的恩师，他建议我用DisplayTag试试。
我花了一天的时间配置，花了半天的时间来运行例子。
结果大失所望，没有得到我想要的结果。
不过尝试的过程中，却也有意外的收获。
不是技术，而是那种探索的方法。
经过学习DisplayTag，我可以触类旁通，再学习别的标签会很快。
现在总结出来和大家分享下。
学习某种开源的标签，可以先到网上去搜相关的文章。
比如我学习DisplayTag，就到百度或者GOOGLE去搜索。
浏览搜索出来的文章，把你觉得有用处的信息或文章COPY集中到一处，便于以后的查询。
对于有些常用的标签会有很多相关的总结，前辈们写的都很不错，全是经验之谈，好多的文章值得我们仔细的研究。
网站上给出了使用标签要用到的JAR包，TID文件，使用标签的例子，开发标签的源码，开发标签的团队，开发标签的目的等。
我搜DisplayTag时，文章不是很多，大多数的人都在转载相同的文章。
网上的文章原创的少啊。
做程序的都太辛苦了，他们很忙，没时间写。
有时间写的时候就有些记不清楚了，怕写错了。
不然，一个好的技术，大家都来写自己的经验，每个人说一句话，都会对学的人有很大的帮助。
不过一般这些说明都是E文的，如果你的英文不好也没有关系，把金山词霸打开，设置成鼠标取词，这样很方便的就可以通读E文。
如果没有金山词霸也没有关系，有几个关键的单词记住就可以了，比如例子（EXAMPLE），下载（DOWN），指南（TUTORIAL）等常用的词汇。
千万不要看到全是E文就放弃，学习新知识，特别是编程方面，看E文是避免不了的。
我们可以顺便学习一下英语啊，我的英语也不好，不过时间常了，不用看懂每个词，也大概会知道这段要告诉我们什么。
html-display标签
html-display标签
标签可以分为⾏内标签和⾏间块级标签，
块级标签：占⼀⾏，如果⽗标签没有限⾼度，⼦标签会⾃动扩展⽗标签的⾼度，⾏内标签不能， 可以设置宽度⾼度 padding margin
⾏内标签：
不能设置宽度⾼度 padding margin
标签不能⾃动伸展
可以通过display灵活的将标签在⾏内和⾏间随意转换
display：inline;转换成⾏内标签
display：block;转换成块级标签
display:inline-block;即有⾏内标签的属性也有块极标签的属性
display:none;让标签消失，可以做很多功能，调⽤js
当⾏间内联标签需要设置宽度⾼度或padding margin时就要把display设置成inline-block;
<a style="border: 1px solid red; height: 40px;width: 40px;display: inline-block;">aaa</a>
<a>bbb</a>。
display：table的几个用法
display：table的⼏个⽤法DIV+CSS的布局已经让表格布局⼏乎很少⽤到，除⾮表格语义性很强的情况。
display：table解决了⼀部分需要使⽤表格特性但⼜不需要表格语义的情况，尤其是DIV+CSS很不⽅便解决的问题，⽐如以下两种情况：⼀、⽗元素宽度固定，想让若⼲个⼦元素平分宽度通常的做法是⼿动设置⼦元素的宽度，如果设置百分数不⼀定能整除，设置具体的数值⼜限制了⽗元素的宽度固定，很烦。
可以使⽤display：table来解决：.parent{display: table; width: 1000px;}.son{display: table-cell;}如此⼀来，就算是三个或者六个元素也可以很⽅便均分⽗元素的宽度了。
⼆、块级⼦元素垂直居中想让⼀个div或p在⽗元素中垂直居中⼀直是很多⼈解决不了的问题（注意直接对块级元素使⽤vertical-align是不能解决这个问题的，vertical-align定义⾏内元素的基线相对于该元素所在⾏的基线的垂直对齐），同样可以使⽤display：table⽅便解决：.parent {display: table;}.son {display: table-cell; vertical-align: middle;}将块级⼦元素的display设置为table-cell之后再使⽤vertical-align就可以了。
注意：虽然display：table解决了避免使⽤表格的问题，但有⼏个需要注意的：（1）display: table时padding会失效（2）display: table-row时margin、padding同时失效（3）display: table-cell时margin会失效。
Java高级编程之displayTag学习摘要
Java高级编程之displayTag学习摘要tableTag中name属性值默认作用域request <display:table name= accList > 如果作用域为session 则<display:table name= sessionScope accList > tableTag中指定ID属性会把该对象加入到pageContext对象中去如ID= test <%int cate=((Role)pageContext getAttribute( test )) getCategory();%> 生成表格的序列号例如<display:table id= row name= mylist > <display:column title= 序列号><%=pageContext getAttribute( row_rowNum )%></display:column> 如行号row_rowNum <c:out value= ${row_rowNum} /> firstName:row firstName <c:out value= ${row firstName} /> lastName: row lastName 全部由ID来取得限制页面显示的结果集数 )全部<display:table name= accList class= its id= test > )头个<display:table name= accList class= its id= test length= > )从第二个开始显示下个<display:table name= accList class= its id= test offset= length= > 包装器decorators 有行包装器(必须继承TableDecorator)和列包装器(必须实现ColumnDecorator) 在tableTag中显示list时decorators中的方法会在list前调用如果decorators实现类中有相关的getXXX()方法时调用此方法如果没有则直接调用list 在columnTag中显示value时 decorators中的方法会先调用 (应该重用) 传递参数有两种方式一struts方式有以下几个属性 )href 基本的超连接 )paramId 添加到url上的参数名<display:column property= status paramId= id paramProperty= id /> )paramName 传递容器内的其它bean当作参数如request setAttribute( testparam sendamail ); <display:column property= email paramId= action paramName= testparam paramScope= request/>)paramScope 指定bean的作用域二decorators方式类Wrapper方法public String getLink (){ListObject lObject= (ListObject)getCurrentRowObject(); int lIndex= getListIndex();return <a href=\ details jsp?index= + lIndex + \ > + lObject getId() + </a> ; } 标签<display:table name= sessionScope details decorator= displaytag sample Wrapper ><display:column property= link title= ID /> <display:column property= email /></display:table> 分页指定属性:pagesize= 每页显示条记录排序)在list中封装的对象的属性要实现Comparable接口 (一般均实现了) ) 在columnT ag中指定sortable= true 可指定默认排序的列 defaultsort= 数值为第几列默认排序defaultorder= descending 指定默认为降序导出支持下列格式 xml csv and excel 属性 export= true 注意导出无效当使用jsp:include or the RequestDispatcher <display:column media= csv excel title= URL property= url /> 指定该url属性值只能在csv excel中导出需要指定export filter 更改默认设置)通过<display:setProperty name= value= > 标签可以覆蓋一些默认设置)创建displaytag properties文件所有时区共用建中文编码则创建displaytag_zh_cn properties 放到类路径下jar包内共有两个默认的属性文件TableTag properties message properties 其它 )当多个表在一页显示时每个表都想要有分页排序导出等功能时只需为每个table指定一个不同的ID即可 )增加表头<display:caption>角色管理</display:caption> )增加表尾<display:footer><tr><td colspan= align= center >国瑞数码版权所有</td></tr></display:footer> )和email自动链接功能指定autolink= true )指定一列显示的最大长度避免太长把表格变形 maxLength= )当列的值为null 使用nulls= false属性把null转为空白lishixinzhi/Article/program/Java/hx/201311/26091。
DISPLAY命令说明
DISPLAY命令说明显示当前表的记录内容和表达式结果。
DISPLAY [[FIELDS] FieldList] [Scope] [FOR lExpression1][WHILE lExpression2] [OFF] [NOCONSOLE] [NOOPTIMIZE] [TO PRINTER [PROMPT] | TO FILE FileName [ADDITIVE]]参数[[FIELDS] FieldList]指定要显示的字段。
如果省略 FIELDS 子句，默认显示表中的所有字段。
注意：除非在字段列表中明确包含了备注字段名，否则备注字段内容不会显示。
SET MEMOWIDTH 命令决定了备注字段显示的宽度。
更多的信息，请参见 SET MEMOWIDTH 命令。
[Scope]指定要显示的记录范围。
只有范围中的记录才会显示。
DISPLAY 的默认范围是当前记录(NEXT 1)。
有关Scope 子句的更多信息，请参见 Scope 子句。
注意：包含 Scope 的命令仅对活动工作区中的表起作用。
[FOR lExpression1]指定仅显示满足逻辑条件 lExpression1 的那些记录。
表达式可以由文字组合、内存变量、数组元素、字段、和备注型字段组成。
如果lExpression1 可优化，则Rushmore 查询优化将优化由DISPLAY ... FOR 建立的查询。
为了获得最佳性能，应在 FOR 子句中使用可优化表达式。
更多的信息，请参见 SET OPTIMIZE 和使用 Rushmore 查询优化来加速数据访问。
[WHILE lExpression2]指定一个条件，只显示逻辑表达式lExpression2 结果为真(.T.)的记录。
*-译者注：直至遇到第一条为假的记录[OFF]不显示记录号。
如果省略 OFF，则在每条记录前显示记录号。
[NOCONSOLE]不输出到 Visual FoxPro 主窗口或活动的用户自定义窗口中。
Display标签的使用
Display标签的使用这个是Display Tag的官方网站URL在web.xml下添加一个filter<filter><filter-name>exportFilter</filter-name><filter-class>org.displaytag.filter.ResponseOverrideFilter</filter-class> </filter>在jsp页面做一个引用：<%@ taglib uri="/el" prefix="display" %>首先我们定义一个list<%List test = new ArrayList( 6 );test.add( "Test String 1" );test.add( "Test String 2" );test.add( "Test String 3" );test.add( "Test String 4" );test.add( "Test String 5" );test.add( "Test String 6" );request.setAttribute( "test", test );%>当我们想在jsp页面上显示这个list时，我们只需要写一句话<display:table name="test" />display tag会自动生成一个table如果list是从控制层抛出来的，name可使用EL表达式表示<display:table name="${test}" />这是最简单的display tag的使用，我们可以给它加上样式等，也可以定义显示的列，下面的table显示复杂一些<display:table name="test" styleClass="list" cellspacing="0" cellpadding="0"><display:column property="id" title="ID" class="idcol"/><display:column property="name" /><display:column property="email" /><display:column property="description" title="Comments"/> </display:table>如果想要给它加个链接也很简单,下面的代码给name加了连接，并附带id参数，email也自动连接到mailto:XXX<display:table name="test" styleClass="list" cellspacing="0" cellpadding="0"><display:column property="id" title="ID" class="idcol"/><display:column property="name" url="detail.jsp" paramId="id" paramProperty="id"/><display:column property="email" autolink="true"/><display:column property="description" title="Comments"/> </display:table>下面介绍几个Display最常用的功能，更多功能请参考。
苹果标记说明书
Use Markup on your iPhone, iPad or iPod touchDownload an assignment from device to your apple device and save it to your Files folder.With Markup, you can edit screenshots and photos, and even add text to a PDF document.When you are finished tap ‘Done’ then ‘Add Work’ in assignments and upload from device. Don’t forget to ‘Hand in’ your work after uploading it.Photos1.Go to Photos and select the photo you want.2.Tap Edit, tap , then tap Markup . Tap the plus button to add text,shapes and more.3.Tap Done, then tap Done again.Draw with MarkupAfter you choose a Markup tool, like the pen , highlighter , or pencil , select a colour and start drawing. Tap the same tool again to change the colour opacity, or tap another tool to change the thickness. You can also tap the colour button to changeMove a drawingAfter you draw something, you can move it around. Tap the Lasso tool, trace a circle around the drawing that you want to move, then drag it where you want it.Erase or undo a drawingTo redo a drawing, tap the eraser button and rub your finger across the area you want to erase. You can also undo any markup action by using the undo button . If you accidentally undo a markup, you can shake your device and tap Redo.Add text, a signature, magnifier and shapesTap the plus button to choose from other Markup tools e.g. add text, speech bubbles, shapes, and signatures:Add text1.In the Markup toolbar in a supported app, tap , then tap Text.Note: If you don’t see the Markup toolbar, tap or Markup. If the toolbar is minimized, tap its minimized version.2.Double-tap the text box.e the keyboard to enter text.To change text after you add it, tap the text to select it, then do any of the following: •Change the font, size, or layout: Tap in the toolbar, then choose an option.•Delete, edit, or duplicate the text: Tap Edit, then choose an option.•Move the text: Drag it.To hide the Markup toolbar when you finish, tap or Done.Add a shapeTap a shape to add it to your screenshot, photo or PDF. Drag the shape to where you want it and use the blue dots to adjust the size and shape. Use the green dots to adjust the arrow's curve and the speech bubble's appearance.In the Markup toolbar in a supported app, tap , then choose a shape.Note: If you don’t see the Markup toolbar, tap or Markup. If the toolbar is minimized, tap its minimized version.To adjust the shape, do any of the following:•Move the shape: Drag it.•Resize the shape: Drag any blue dot along the shape’s outline.•Change the outline color: Tap a color in the color picker.•Fill the shape with color or change the line thickness: Tap , then choose an option.•Adjust the form of an arrow or speech bubble shape: Drag a green dot.•Delete or duplicate a shape: Tap it, then choose an option.To hide the Markup toolbar when you finish, tap or Done.Draw a shapeYou can use Markup to draw geometrically perfect shapes—lines, arcs, and more—to use in diagrams and sketches.1.In the Markup toolbar in a supported app, tap the pen, marker, or pencil tool. Note: If you don’t see the Markup toolbar, tap or Markup. If the toolbar is minimized, tap its minimized version.2.Draw a shape in one stroke with your finger, then pause.A perfect version of the shape snaps into place, replacing the drawing. (If you prefer to keep the freehand shape, tap .)The shapes you can draw include straight lines, arrows, arcs, continuous lines with 90-degree turns, squares, circles, rectangles, hearts, triangles, stars, clouds, and hexagons.Zoom in or magnify in MarkupIn Markup in supported apps, you can zoom in when you need to draw the details. Use the magnifier when you only need to see the details. Drag the loupe around, use the blue dot to adjust the size, and the green dot to increase or decrease the magnification level.Zoom inWhile using Markup in a supported app, pinch open so you can draw, adjust shapes, and more, up close.To pan when you’re zoomed in, drag two fingers. To zoom back out, pinch closed. MagnifyIn the Markup toolbar in a supported app, tap , then tap Magnifier.Note: If you don’t see the Markup toolbar, tap or Markup. If the toolbar is minimized, tap its minimized version.To change the magnifier’s characteristics, do any of the following:•Change the magnification level: Drag the green dot on the magnifier.•Change the size of the magnifier: Drag the blue dot on the magnifier.•Move the magnifier: Drag it.•Change the outline thickness of the magnifier: Tap , then choose an option.•Change the outline color of the magnifier: Choose an option from the color picker.•Remove or duplicate the magnifier: Tap its outline, then tap Delete or Duplicate.To hide the Markup toolbar when you finish, tap or Done.Reference:Apple Support, https:///en-gb/HT206885 [Accessed January 2021]。
css中的display以及position属性
css中的display以及position属性我们都知道,元素分为⾏内元素和块级元素,在页⾯布局中,我们常常需要让⾏内元素具有块级元素的特性,或者使块级元素转换成⾏内元素,这就要使⽤我们的display属性了. 我们先定义三个div:以上的三个div都是块级元素,输出的结果为:块级元素的特征就是各占⼀⾏.接下来⽤display将第⼆个div转换成⾏内元素:(先看⼀下⼏个现象)1.结果变成了:2.将后⾯两个div都转成⾏内元素:结果是:3.只把第⼆个元素转换为⾏内元素,增加div的⾼度:结果是这样:4.把所有的div转换成⾏内元素:结果:以上结果是由什么导致的,我们来分析⼀下:⾸先,三个div是块级元素,输出的结果就是从上到下依次排列.当我使⽤display将第⼆个div转换成⾏内元素时,想像中的应该是第⼀个div独占⼀⾏第⼆个div和第三个div排在第三⾏,但是结果却是现象1那样,各占⼀⾏,结果与想象不⼀致,所以我们要多实践.接下来我继续让第⼆个和第三个div都转换成⾏内元素,后两个div排在了⼀⾏(现象2).最后把所有的div转成了⾏内元素,三个div都转成了⼀⾏(现象4).不知道你们注意到没有:1.(现象2)中,第⼆个div转变成了⾏内元素之后,我宽度没有任何的改变,但是结果就是被转变的div没有宽度.2.在(现象3)中,我特意增加了div的⾼度,第⼆个div没有任何变化3.转变成⾏内元素的div顶部紧跟着上⼀个div其实这些都是⾏内元素的特性,既然都到这⾥了,我还是把它写出来供⼤家参考吧:1.针对⾏内元素设置的宽和⾼都是⽆效的.2.⾏内元素的margin-left,margin-right有效,margin-top,margin-bottom⽆效.以上现象已经充分显现出了⾏内元素的特性.也体现出了display的作⽤.我们再来看⼀个将⾏内元素转换成块级元素的例⼦:先设置边框及元素:结果:好像看不出什么,那接下来:将第⼆个span⽤display设置成块级元素,增加span长度和⾼度的设置:结果:通过这个例⼦:我们看到第⼆个span已经转成了块级元素,设置的宽和⾼都起了作⽤.display是页⾯布局中常⽤的属性,也是⽐较重要的属性,我们应该熟练掌握他的⽤法并加以应⽤.再介绍⼀个position属性:position是⼀种定位的⽅法,它分为相对定位,绝对定位,静态定位以及固定定位:先进⾏如下设置:输出结果:我们看到了div的位置如上图所⽰:先介绍相对定位(relative):对.inner进⾏设置:结果:内层div的位置在外层div内发⽣了移动,它的参照对象是本⾝的div,不会脱离常规流,也不会对其他的元素造成影响.下⾯看绝对定位(absolute):结果:这个结果说明了绝对定位使元素脱离常规流,它的参照点变为了容器的基点,也就是浏览器的基点.但是,如果它外层的div也有设置position属性的(除了static),那么它的参照点就是外层div的左上顶点.如下图:结果:静态定位:是position的默认属性:设置:结果:静态定位会使元素正常定位并按照元素出现的顺序依次格式化,如上图.固定定位(fixed):将元素固定在某⼀位置,不随滚动条滚动⽽移动,这⾥不做详细的讨论了.。
华为交换机故障诊断命令display怎么用？华为display命令详解
华为交换机故障诊断命令display怎么⽤？华为display命令详解华为交换机出现问题，⼀般都会⼿要你管display命令来排查故障，display命令是⽹络维护和故障处理的重要⼯具，下⾯我们就来看看详细的使⽤⽅法。
1、基本信息查询display diagnostic-information 或者简写 dis dia,此命令主要⽤于系统基本信息的收集，集合了多条常⽤display命令的输出信息，包括display device、display current-configuration等等，任何⽹上问题发⽣时必须提供该信息。
使⽤时请注意，此命令执⾏时间较长，如果采⽤直接在终端的显⽰⽅式，可以通过按Ctrl+C停⽌。
2、查看设备信息 display device 简写 dis dev3、查看接⼝display interface 简写 dis interface,可以通过按Ctrl+C停⽌4、查看版本信息display version 简写 dis ver5、查看补丁信息display patch-information 简写dis patch6、查看当前配置 display current-configuration 简写 dis cu 最常⽤的命令7、查看告警信息 display trapbuffer 简写 dis trap8、查看系统⽇志 display logbuffer 简写 dis log9、查看内存使⽤信息 display memory-usage 简写 dis memory10、查看cpu使⽤情况 display cpu-usage11、查看接⼝开启情况 display interface brief 简写 dis int br，查看接⼝汇总display ip interface brief 简写dis ip inr br信息项使⽤命令基本信息 display diagnostic-information设备信息 display device接⼝信息 display interface版本信息 display version补丁信息 display patch-information电⼦标签信息 display elabel系统当前配置信息 display current-configuration系统保存的配置信息 display saved-configuration时间信息 display clock告警信息 display trapbuffer⽤户⽇志信息 display logbuffer内存使⽤信息 display memory-usageCPU使⽤情况 display cpu-usage接⼝开启情况 display interface brief以上就是关于华为display命令的详细介绍，希望⼤家喜欢，请继续关注。
苹果AirTag有什么用？AirTagp的详细使用教程
苹果AirTag有什么⽤？AirTagp的详细使⽤教程苹果推出了苹果AirTag防丢失器，那么这个苹果AirTag有什么⽤呢，怎么⽤呢，想知道的朋友快跟着⼩编来看看吧。
认识AirTag这个⼩⼩的圆盘便是 AirTag，只要把与你的物品捆绑在⼀起，你就能随时随地查看你的物品在哪⾥了。
AirTag 都采⽤超宽带技术的U1芯⽚，从⽽为 iPhone 11 和 iPhone 12 ⽤户提供 Precision Finding 功能。
这功能的技术可以更准确地确定丢失的 AirTag 在⼀定范围内的距离和⽅向。
Precision Finding 融合来⾃摄像头， ARKit ，加速计和陀螺仪接收到的数据，通过让 AirTag 发出声⾳、震动、发光的⽅式引导⽤户找到 AirTag。
当然，不是 iPhone 11 或 12 的苹果⽤户也不是不能⽤，但只是少了 Precision Finding 这⼀项功能。
我们仍然能找到 AirTag 的位置。
可能有⼩伙伴想问，它是如何在外⾯也能联⽹的？苹果AirTag有什么⽤这功能的技术可以更准确地确定丢失的 AirTag 在⼀定范围内的距离和⽅向。
Precision Finding 融合来⾃摄像头， ARKit ，加速计和陀螺仪接收到的数据，通过让 AirTag 发出声⾳、震动、发光的⽅式引导⽤户找到 AirTag。
苹果AirTag使⽤教程如果 AirTag 与⽤户分开且不在蓝⽛范围内，则“Find My”(查找功能)⽹络可以对其进⾏跟踪。
“查找”⽹络可利⽤近10亿台苹果设备，可检测到丢失的 AirTag 发出的蓝⽛信号，并将该位置匿名和私下转发给其所有者。
⽤户还可以将 AirTag设置成“丢失模式”，并在其处于有效范围内或被“查找”⽹络定位时得到通知。
如果有⼈发现丢失的AirTag，他们可以使⽤他们的 iPhone 或任何⽀持NFC的设备对其进⾏轻击，然后会弹出⼀个⽹页，该⽹页将会显⽰丢失者的电话。
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简要介绍收藏
一、 DisplayTag概述
DisplayTag是一套开源的定制标签库，它提供高级web显示模板，DisplayTag 可以在MVC模型中充当V的角色。
这个标签库提供了许多易于使用的强大功能。
二、我能用DisplayTag做什么？
实际上，DisplayTag可以用来显示表，给它一个对象列表，它可以处理表的列的显示、排序、分页、裁剪、分组、智能链接、导出和使用定制的xhtml样式装饰表格。
三、 DisplayTag的依赖jar包
下面的jar包是在使用DisplayTag开发时必须的：
Commons-beanutils
Commons-collections
Commons-lang
Commons-logging
尽量使用最新的包，这些可以在apache的commons项目中去下载。
另外还需要j2ee的jstl和standard包用于EL表达式。
iText 包在jsp页面编译的时候也是必须的。
如果你要构建一个流行的MVC开发组合web应用，例如：
struts+hibernate+spring，你可能还需要相应的包，这里就不一一列举了。
此外我还想说明的是在单元测试的时候有些包也是必须的，例如：junit、httpunit、dbuint、 easyMock等等。
请把相应的包加入到项目的classpath下或者直接拷贝到/WEB-INF/lib目录下。
四、 DisplayTag开发环境的搭建
强烈建议使用J2SE5.0、J2EE1.4以上的版本，Servlet容器使用Tomcat 5.0以上的版本。
这样可以免去配置DisplayTag的tld文件。
环境搭建好后，在jsp 页面中加入如下声明：
<%@ taglib uri= prefix=”display” %>
<jsp:root version=”1.2” xmlns:jsp=”/JSP/Page” xmlns:display=”urn:jsptld:”>
标签库详解收藏
1. DisplayTag标签库概述
DisplayTag标签库是非常容易使用，而且功能强大，这我在上一博客中已经介绍了，它包含了一下标签：
(1)<display:caption></display:caption>它的作用相当于html页面的
<title>标签。
(2)<display:column></display: column >显示表格中的一个行对象的一个属性。
(3)<display:footer></display: footer > 嵌套在<display:table>标签中，在表格的最后一行数据之后显示的信息。
(4) <display:table></display: table >应该可以知道这是我们DisplayTag 标签库中最重要最核心的标签，上面的标签都是嵌套在它里面来使用的。
其核心作用是将给定的对象以html表格形式来显示，根据<display:column>标签格式化每一个项。
2. Table标签
像html中<table>一样来显示并格式化列表。
使用列表属性来指定某个范围内的数据集合，以供操作，支持将已经格式化的数据导出到CSV、EXCEL或者是XML 中去。
列表中的数据可以排序，并且列表可以按照需要进行分页显示。
示例：
<display:table name="someList" export="true" id="row"
requestURI="MyAction.do">
<display:column sortable="true" title="ID"> <c:out value="${row.id}"/> </display:column>
<display:column property="email" autolink="true"/>
<display:column property="description" title="Comments"/>
</display:table>
属性说明：
cellpadding : 等同于html页面中<table>中的属性
cellspacing : 等同于html页面中<table>中的属性
class : 等同于html页面中<table>中的属性
decorator : 由TableDecorator的子类中指定的操作来对整个列表进行修饰。
defaultsort: 列的默认索引排序，从1开始。
ExcludedParams: 由空白分开的列表，包含参数指定的名字，将不会进行分页或者排序，可以使用excludedParams=”*”来匹配任何参数。
export: 导出允许或禁止，有效值为true或false。
frame: 等同于html页面中<table>中的属性
Htmlid: 等同于html页面中<table>中的id属性。
id：参见uid。
这个id属性不可以使用在jsp1.0，但是uid可以。
length: 记录可以显示的数量。
list: 在table中当作数据源的对象，可以是像
requestScope.object.property这样的表达式。
你必须定义要么是属性的名字或者是list属性。
推荐使用”name”。
name: 在table中当作数据源的对象, 可以是像
requestScope.object.property这样的表达式。
在EL版本的标签库中，这必须是一个指定了源对象的EL表达式。
Offset: 第一条显示的记录索引。
pageSize: 一页中显示的记录数。
requestURI: 当前用以排序的链接，导出和分页，通过添加requestURI属性值的任何标签产生的参数。