C语言 简易计算器源文件.docx

C语言 简易计算器源文件.docx

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C语言简易计算器源文件

#include"stdafx.h"

#include

#include

#include

#include"resource.h"

#include"MainDlg.h"

#definePI3.141592653589793

/*

TemplatedesignedbyRuP.Pleasevisitformoreinformation

如鹏网（）大学生计算机学习社区，提供大量免费视频学习教程，提供个性化一对一学习指导

*/

BOOLWINAPIMain_Proc（HWNDhWnd,UINTuMsg,WPARAMwParam,LPARAMlParam）

{

switch（uMsg）

{

HANDLE_MSG（hWnd,WM_INITDIALOG,Main_OnInitDialog）;

HANDLE_MSG（hWnd,WM_COMMAND,Main_OnCommand）;

HANDLE_MSG（hWnd,WM_CLOSE,Main_OnClose）;

}

returnFALSE;

}

BOOLMain_OnInitDialog（HWNDhwnd,HWNDhwndFocus,LPARAMlParam）

{

returnTRUE;

}

voidMain_OnCommand（HWNDhwnd,intid,HWNDhwndCtl,UINTcodeNotify）

{

TCHARnumber1[256]={0};

TCHARnumber2[256]={0};

TCHARnumber3[256]={0};

TCHARnumber[256]={0};

staticdoublenum1;

doublenum2;

TCHARbuffer[256];

staticflag=0;

staticPOINTflag=0;

staticEQUALSflag=0;

staticSYMBOLSSflag=0;

switch（id）

{

caseID_MENUITEMTHEME:

{

MessageBox（hwnd,TEXT（"本计算器于2010-12-20,14:

28完成,制作：

泸诚"）,TEXT（"版本信息"）,MB_OK）;

}

break;

caseID_MENUITEMHEL:

{

MessageBox（hwnd,TEXT（"本能进行加、减、乘、除、三数函数、乘方运算，只要你能打开它，肯定就能用它，否则肯定属木瓜!

:

）"）,TEXT（"关于计算器"）,MB_OK）;

}

break;

caseIDC_SIN:

{

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

doubleresult=sin（n1*PI/180）;

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_COS:

{

doubleresult=0;

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

if（int（n1/90）%2==0）

{

result=cos（n1*PI/180）;

}

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_TAN:

{

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

if（int（n1/90）%2==0）

{

doubleresult=tan（n1*PI/180）;

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

else

{

wsprintf（number1,"error"）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

}

break;

caseIDC_ARS:

{

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

doubleresult=asin（n1）*180/PI;

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_ARC:

{

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

doubleresult=acos（n1）*180/PI;

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_ART:

{

EQUALSflag=1;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

doubleresult=atan（n1）*180/PI;

*gcvt（result,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_BACKSPACE:

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

intnn=strlen（number1）;

inti=0;

TCHARstr[256];

for（i=0;i<（nn-1）;i++）

{

str[i]=number1[i];

}

str[i]='\0';

SetDlgItemText（hwnd,IDC_NUMBER1,str）;

}

break;

caseIDC_CE:

{

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

break;

caseIDC_C:

{

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

POINTflag=0;

EQUALSflag=0;

SYMBOLSSflag=0;

}

break;

caseIDC_SYMBOLS:

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

doublen1=atof（number1）;

n1=（-n1）;

*gcvt（n1,10,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

break;

caseIDC_DIG0:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s0",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG1:

{

if（flag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s1",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG2:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s2",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG3:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s3",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG4:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s4",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG5:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s5",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG6:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s6",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG7:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s7",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG8:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s8",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_DIG9:

{

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s9",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

}

break;

caseIDC_POINT:

{

TCHARbuffer[256];

if（EQUALSflag==1）

{

EQUALSflag=0;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

}

if（POINTflag!

=1）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

wsprintf（buffer,"%s.",number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,buffer）;

POINTflag=1;

}

}

break;

caseIDC_PLUS:

{

POINTflag=0;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num1=atof（number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

flag=1;

}

break;

caseIDC_MINUS:

{

POINTflag=0;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num1=atof（number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

flag=2;

}

break;

caseIDC_TIMES:

{

POINTflag=0;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num1=atof（number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

flag=3;

}

break;

caseIDC_DIVIDE:

{

POINTflag=0;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num1=atof（number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

flag=4;

}

break;

caseIDC_CHENGFANG:

{

POINTflag=0;

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num1=atof（number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,""）;

flag=5;

}

break;

caseIDC_EQUALS:

{

EQUALSflag=1;

POINTflag=0;

if（flag==1）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num2=atof（number1）;

doublesum=num1+num2;

*gcvt（sum,15,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

if（flag==2）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num2=atof（number1）;

doublesum=num1-num2;

*gcvt（sum,15,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

if（flag==3）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num2=atof（number1）;

doublesum=num1*num2;

*gcvt（sum,15,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

if（flag==4）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num2=atof（number1）;

doublesum=num1/num2;

*gcvt（sum,15,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

if（flag==5）

{

GetDlgItemText（hwnd,IDC_NUMBER1,number1,sizeof（number1））;

num2=atof（number1）;

doublesum=pow（num1,num2）;

*gcvt（sum,15,number1）;

SetDlgItemText（hwnd,IDC_NUMBER1,number1）;

}

flag=0;

}

break;

default:

break;

}

}

voidMain_OnClose（HWNDhwnd）

{

EndDialog（hwnd,0）;

}