计算器c源代码

作品：科学计算器 作者：欧宗龙编写环境：vc+6.0语言：c#include “stdafx.h“#include #include #include #include “resource.h“#include “MainDlg.h“#include #include #define PI 3.141593BOOL A_Op=FALSE;BOOL WINAPI Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)switch(uMsg)HANDLE_MSG(hWnd, WM_INITDIALOG, Main_OnInitDialog);HANDLE_MSG(hWnd, WM_COMMAND, Main_OnCommand);HANDLE_MSG(hWnd,WM_CLOSE, Main_OnClose);return FALSE;BOOL Main_OnInitDialog(HWND hwnd, HWND hwndFocus, LPARAM lParam) return TRUE;void TrimNumber(char a)/判断并删除小数点后无用的零for(unsigned i=0;i=i;j-)if(aj=0)aj=0;else if(aj=.)aj=0;else break;double Operate(char Operator,double n1,double n2) /判断符号，进行相应的运算if(Operator=0)if(Operator=+)n2+=n1;if(Operator=-)n2=n1-n2;if(Operator=*)n2*=n1;if(Operator=/)n2=n1/n2;if(Operator=)n2=pow(n1,n2);return n2;/void IntBinary(char a,int n)if(n1)IntBinary(a,n/2);sprintf(a,“%s%i“,a,n%2);void decimal(char a,double m)if(m0.000001)m=m*2;sprintf(a,“%s%d“,a,(long)m);decimal(a,m-(long)m);void Binary(char a,double Num)char DecP256=“;double x,y;double *iptr=x=modf(Num,iptr);decimal(DecP,x);IntBinary(a,(int)y);strcat(a,“.“);strcat(a,DecP);/void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)static DELTIMES=0;static char str256;static char Operator=0;static double RNum3;switch(id)case IDC_BUTTONN1:/数字 1if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“1“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN2:/数字 2if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“2“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN3:/数字 3if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“3“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN4:/数字 4if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“4“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN5:/数字 5if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“5“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN6:/数字 6if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“6“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN7:/数字 7if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“7“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN8:/数字 8if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“8“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN9:/数字 9if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“9“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONN0:/数字 0if(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);strcat(str,“0“);SetDlgItemText(hwnd,IDC_EDIT,str);RNum1=atof(str);A_Op=FALSE;break;case IDC_BUTTONDEL:/小数点.delif(A_Op)SetDlgItemText(hwnd,IDC_EDIT,NULL);GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);if(DELTIMES=0)strcat(str,“.“);DELTIMES+;SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=FALSE;break;case IDC_BUTTONADD: /加法运算RNum1=atof(str);RNum0=RNum1;RNum1=RNum2;RNum2=Operate(Operator,RNum1,RNum0);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);Operator=+;DELTIMES=0;A_Op=TRUE;break;case IDC_BUTTONSUB: /减法运算RNum1=atof(str);RNum0=RNum1;RNum1=RNum2;RNum2=Operate(Operator,RNum1,RNum0);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);DELTIMES=0;A_Op=TRUE;Operator=-;break;case IDC_BUTTONMUL: /乘法运算RNum1=atof(str);RNum0=RNum1;RNum1=RNum2;RNum2=Operate(Operator,RNum1,RNum0);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);Operator=*;DELTIMES=0;A_Op=TRUE;break;case IDC_BUTTONDIV: /除法运算RNum1=atof(str);RNum0=RNum1;RNum1=RNum2;RNum2=Operate(Operator,RNum1,RNum0);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);Operator=/;DELTIMES=0;A_Op=TRUE;break;case IDC_BUTTONXY:/x 的 y 次方GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum1=atof(str);RNum0=RNum1;RNum1=RNum2;RNum2=Operate(Operator,RNum1,RNum0);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);Operator=;DELTIMES=0;break;case IDC_BUTTONPI: /圆周率 PI，弧度GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);if(atof(str)!=0)RNum2=atof(str)*PI;sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);elsesprintf(str,“%f“,PI);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONSQRT: /开根号GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=sqrt(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONSIN: /三角函数 sin 函数GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=sin(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONCOS:/三角函数 cos 函数GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=cos(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONTAN:/三角函数 tan 函数GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=tan(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONSQ: /平方GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=atof(str)*atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONCUBE:/三次方GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=atof(str)*atof(str)*atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONEX:/e 的 x 次方GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=exp(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTON10X:/10 的 x 次方GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=pow(10,atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONLN: /ln x GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=log(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONLOG10: /log10 GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str);RNum2=log10(atof(str);sprintf(str,“%f“,RNum2);TrimNumber(str);SetDlgItemText(hwnd,IDC_EDIT,str);A_Op=TRUE;break;case IDC_BUTTONBINARY: /十进制转换为二进制 char a256=“;GetDlgItemText(hwnd,ID