WinAPI字符及字符串函数(7)IsCharLower-是否是个小写字母

合集下载

相关主题

1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。

WinAPI字符及字符串函数(7):IsCharLower-是否是个小写字母

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;

type

TForm1 = class(TForm)

Button1: TButton;

Button2: TButton;

Button3: TButton;

Button4: TButton;

Button5: TButton;//Examda

procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure Button3Click(Sender: TObject);

procedure Button4Click(Sender: TObject);

procedure Button5Click(Sender: TObject);

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);

var

c: Char;

b: BOOL;

begin

c := #65; {A}

b := IsCharLower(c);

ShowMessage(BoolToStr(b, True)); {False}

end;

procedure TForm1.Button2Click(Sender: TObject);

var

c: Char;

b: BOOL;

begin

c := #97; {a}

b := IsCharLower(c);

ShowMessage(BoolToStr(b, True)); {True}

end;

procedure TForm1.Button3Click(Sender: TObject);

var

c: Char;

b: BOOL;

begin

c := #48; {0}

b := IsCharLower(c);

ShowMessage(BoolToStr(b, True)); {False}

end;

procedure TForm1.Button4Click(Sender: TObject);

var

c: Char;

b: BOOL;

begin

c := #13; {回车键}

b := IsCharLower(c);

ShowMessage(BoolToStr(b, True)); {False}

end;

procedure TForm1.Button5Click(Sender: TObject);

var

c: WideChar;

b: BOOL;

begin

c := #19975; {万}

b := IsCharLower(c);

ShowMessage(BoolToStr(b, True)); {False}

end;

end.

【