可以用鼠标操作的C语言计算器源码

可以用鼠标操作的C语言计算器源码，比较精美了

/** **** **** *** **** *文件包含****** *** *** ** *****/

#include /*DOS接口函数*/

#include /*数学函数的定义*/

#include /*屏幕操作函数*/

#include /*I/O函数*/

#include /*库函数*/

#include /*变量长度参数表*/

#include /*图形函数*/

#include /*字符串函数*/

#include /*字符操作函数*/

#include

/** **** ***** ******宏代换定义****** ****** *** *****/

#define BWIDTH 50 /*按键条的宽度*/

#define BHEIGHT 30 /*按键条的高度*/

#define MAX_SCR 15

#define PI 3.141592654

/** **** ********** ***声明函数** ****** ** **** *****/

void graph(void); /*画图形函数声明*/

void windows(void); /*绘制窗口界面函数声明*/

void button(int x,int y,int c1,int c2,int c3,char *bt); /*按键函数声明*/

void scr(char scr_main[MAX_SCR],int error); /*屏显函数声明*/

int mouse_message(void); /*鼠标信息函数声明*/

void visbilemouse(void); /*鼠标可视化函数声明*/

void getmouse(int *x,int *y,int *key); /*获得鼠标信息函数声明*/

void drawmouse(int *x,int *y,int *z); /*画鼠标函数声明*/

void jd(int x,int y); /*按钮焦点函数声明*/

void calculator(int fun_code); /*实现计算器功能函数声明*/

void clrnum(int n0,int n1); /*清空Num数组函数声明*/

void adv(void); /*高级函数功能声明*/

double qiu_zhi(char *bds_start,char *bds_end); /*求表达式值函数声明*/

long jie_cheng(long n); /*阶乘函数声明*/

/** **** ***** **** ****定义全局变量* ****** **** ****/

int Maxcolor,Maxx,Maxy; /*定义最大颜色数，边界*/

char Num[2][MAX_SCR]={{0},{0}}; /*定义存储数据的二维数组，分别对应双目运算的数据*/

double Memory=0; /*定义内存存储数据*/

int Flag=0,Num_flag=0; /*二维数组的第几维数和第几个数*/

char fun=0; /*功能变量，对应双目运算*/

int Mx,My,Mkey,Mk0=-1; /*定义鼠标的位置和按键状态，初始键值为-1*/

int jd0=-1,jd1=-1; /*定义按键焦点，按鼠标键后返回0~29或-1*/

char

function[30]={'Q','M','R','S','P','B','7','4','1','0','C','8','5','2','F','A','9','6','3','.','%','/','*','-','+','e','^','K','D ','='}; /*定义按键对应的function[fun_code]*/

char Adv_ch[100]={0}; /*定义表达式数组变量*/

/** **** ***** ** ****** ***主函数** *** *** **** *****/

void main()

{

int message; /*定义通信变量*/

graph(); /*进入图形模式*/

windows(); /*绘制窗口界面*/

visbilemouse(); /*显示鼠标*/

for (;message=mouse_message();)

if (message!=-1) calculator(message); /*用鼠标输入数据mouse-message返回jd1到message*/

closegraph(); /*关闭图形模式*/

} /*message，fun-code，jd1是相互联系的通信变量*/

/** **** **** *** ***进入图形模式** *** *** ** ***** *****/

void graph(void)

{

int GraphDriver=DETECT,GraphMode,ErrorCode;

initgraph( &GraphDriver, &GraphMode, "" ); /*初始化图形系统*/

ErrorCode = graphresult(); /*读初始化结果*/

if( ErrorCode != grOk ) /*如果初始化时出现错误*/

{

printf("Graphics System Error: %s\n",grapherrormsg( ErrorCode ) ); /*显示错误代码*/ exit(1); /*退出*/

}

/*读取最大颜色数,最大横纵座标*/

Maxcolor=getmaxcolor();

Maxx=getmaxx();

Maxy=getmaxy();

}

/** **** *** ** ***** *绘制窗口界面***** ** ** ***** *****/

void windows(void)

{

int i,j;

char btext[30][6]={"QUIT"," MC"," MR"," MS"," M+"," \033 "," 7 "," 4 "," 1 "," 0 "," C "," 8 ","

5 "," 2 ","+/-","ADV"," 9 ","

6 "," 3 "," . "," % "," / "," * "," - "," + ","EXP","X^Y","y\0373X","1/X"," = "};/*定义各键的显示符号*/

int

ctext[30]={RED,GREEN,GREEN,GREEN,GREEN,RED,BLUE,BLUE,BLUE,BLUE,RED,BLU E,BLUE,BLUE,BLUE,RED,BLUE,BLUE,BLUE,BLUE,BLUE,BLUE,BLUE,BLUE,BLUE,BLU E,BLUE,BLUE,BLUE,RED}; /*定义各键的显示颜色*/

setbkcolor(WHITE); /*定义背景色*/