学习到的做一个简单的计算器

来源：互联网发布：淘宝账号无法开店编辑：程序博客网时间：2024/05/19 02:19

在如鹏网上学到了做一个简单的计算器哈哈。

#include "stdafx.h"
#include <windows.h>
#include <windowsx.h>
#include "resource.h"
#include "MainDlg.h"
#include<stdlib.h>
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)
{
HWND hwndCombo1=GetDlgItem(hwnd,IDC_COMBO1);
ComboBox_InsertString(hwndCombo1,-1,TEXT("+"));
ComboBox_InsertString(hwndCombo1,-1,TEXT("-"));
ComboBox_InsertString(hwndCombo1,-1,TEXT("*"));
ComboBox_InsertString(hwndCombo1,-1,TEXT("%"));
return TRUE;
}

void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
    TCHAR str1[256];
     TCHAR str2[256];
switch(id)
    {
        case IDC_OK:
   {

          GetDlgItemText(hwnd,IDC_EDIT1,str1,sizeof(str1));
          GetDlgItemText(hwnd,IDC_EDIT2,str2,sizeof(str2));
          int i1=atoi(str1);
          int i2=atoi(str2);

    int i3=0;
    HWND hwndCombo1=GetDlgItem(hwnd,IDC_COMBO1);
    int curIndex=ComboBox_GetCurSel(hwndCombo1);
    switch(curIndex)
    {
    case 0:
     {
      i3=i1+i2;
     }
     break;
    case 1:
     {
      i3=i1-i2;
     }
     break;
    case 2:
     {
      i3=i1*i2;
     }
     break;
    case 3:
     {
      i3=i1/i2;
     }
     break;
    }
   TCHAR str3[256];
   itoa(i3,str3,10);
   SetDlgItemText(hwnd,IDC_EDIT3,str3);
   }
        break;
        default:
  break;
    }
}

void Main_OnClose(HWND hwnd)
{
EndDialog(hwnd, 0);
}

代码略简单，还可以通过继续学习，完善计算器。

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