作品：科学计算器 作者：欧宗龙
编写环境：vc++6.0 语言：c
#include \#include
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
double Operate(char Operator,double n1,double n2) { if(Operator=='0') { } if(Operator=='+') { n2+=n1; } if(Operator=='-') { n2=n1-n2; } if(Operator=='*') { n2*=n1; } if(Operator=='/')
//判断符号，进行相应的运算 { n2=n1/n2; } if(Operator=='^') { n2=pow(n1,n2); } return n2; }
//////////////////////// ////////////////////////
void IntBinary(char a[],int n) {
if(n>1)IntBinary(a,n/2); sprintf(a,\}
void decimal(char a[],double m) {
if(m>0.000001) {
m=m*2;
sprintf(a,\ decimal(a,m-(long)m); } }
void Binary(char a[],double Num) { char DecP[256]=\ double x,y; double *iptr=&y; 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 str[256]; static char Operator='0'; static double RNum[3]; switch(id) { case IDC_BUTTONN1://数字1 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\ SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE; } break; case IDC_BUTTONN2://数字2 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\ SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE; } break; case IDC_BUTTONN3://数字3 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\ SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE;
} break; case IDC_BUTTONN4://数字4 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\
SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE; } break; case IDC_BUTTONN5://数字5 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\
SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE; } break; case IDC_BUTTONN6://数字6 { if(A_Op) { SetDlgItemText(hwnd,IDC_EDIT,NULL); } GetDlgItemText(hwnd,IDC_EDIT,str,sizeof(str)); strcat(str,\
SetDlgItemText(hwnd,IDC_EDIT,str); RNum[1]=atof(str); A_Op=FALSE; } break; case IDC_BUTTONN7://数字7 { if(A_Op)
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