用c语言编写的计算器源代码.docx
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用c语言编写的计算器源代码
作者：
欧宗龙
编写环境：
vc++
语言：
c
#include""
#include<>
#include<>
#include<>
#include""
#include""
#include<>
#include<>
#definePI
BOOLA_Op=FALSE;
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;
}
voidTrimNumber（chara[]）
{
for（unsignedj=strlen（a）-1;j>=i;j--）
{
if（a[j]=='0'）
{
a[j]='\0';
}
elseif（a[j]=='.'）
{
a[j]='\0';
}
elsebreak;
}
}
}
}
doubleOperate（charOperator,doublen1,doublen2）;
strcat（a,DecP）;
}
;
}
DELTIMES++;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=FALSE;
}
break;
caseIDC_BUTTONADD:
//加法运算
{
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
Operator='+';
DELTIMES=0;
A_Op=TRUE;
}
break;
caseIDC_BUTTONSUB:
//减法运算
{
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
DELTIMES=0;A_Op=TRUE;
Operator='-';
}
break;
caseIDC_BUTTONMUL:
//乘法运算
{
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
Operator='*';
DELTIMES=0;
A_Op=TRUE;
}
break;
caseIDC_BUTTONDIV:
//除法运算
{
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
Operator='/';
DELTIMES=0;
A_Op=TRUE;
}
break;
case{GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
Operator='^';
DELTIMES=0;
}
break;
caseIDC_BUTTONPI:
//圆周率PI，弧度
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
if（atof（str）!
=0）
{
RNum[2]=atof（str）*PI;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
}
else
{
sprintf（str,"%f",PI）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
}
A_Op=TRUE;
}
break;
caseIDC_BUTTONSQRT:
//开根号
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=sqrt（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTONSIN:
//三角函数sin函数
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=sin（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=cos（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=tan（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTONSQ:
//平方
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=atof（str）*atof（str）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=atof（str）*atof（str）*atof（str）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=exp（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTON10{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=pow（10,atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTONLN:
//lnx
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=log（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTONLOG10:
//log10
{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=log10（atof（str））;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
caseIDC_BUTTONBINARY:
//十进制转换为二进制
{
chara[256]="";
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[2]=atof（str）;
Binary（a,RNum[2]）;
strcpy（str,a）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
A_Op=TRUE;
}
break;
case{
DELTIMES=0;
Operator='0';
RNum[0]=RNum[1]=RNum[2]=0;
memset（str,0,sizeof（str））;
SetDlgItemText（hwnd,IDC_EDIT,NULL）;
A_Op=FALSE;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
inti=strlen（str）;
str[i-1]='\0';
SetDlgItemText（hwnd,IDC_EDIT,str）;
}
break;
case{
GetDlgItemText（hwnd,IDC_EDIT,str,sizeof（str））;
RNum[1]=atof（str）;
RNum[0]=RNum[1];
RNum[1]=RNum[2];
RNum[2]=Operate（Operator,RNum[1],RNum[0]）;
sprintf（str,"%f",RNum[2]）;
TrimNumber（str）;
SetDlgItemText（hwnd,IDC_EDIT,str）;
Operator='0';
DELTIMES=0;
}
break;
default:
break;
}
}
voidMain_OnClose（HWNDhwnd）
{
EndDialog（hwnd,0）;
}
本人拙作，如有不足之处请谅解。
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