天天向上

   1: #include "stdafx.h"

   2: #include <Windows.h>

   3: #include <iostream>

   4:  

   5: using namespace std;

   6:  

   7: int _tmain(int argc, _TCHAR* argv[])

   8: {

   9:     // 寫入檔案

  10:     HANDLE hFile;

  11:     DWORD nBytes;

  12:     hFile = CreateFile( _T("test.txt"), GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, 0, NULL);

  13:     char msg[] = "我要寫入1";

  14:     if( hFile != INVALID_HANDLE_VALUE)

  15:     {

  16:         WriteFile(hFile, msg, sizeof(msg)-1, &nBytes, NULL);

  17:         CloseHandle(hFile);

  18:         cout << "寫入內容: " << msg << endl; 

  19:             

  20:         cout << "寫入 "    << nBytes << " Bytes" << endl;

  21:         system("pause");

  22:     }

  23:     //-------------------------------------------------

  24:     // 讀取檔案

  25:     hFile = CreateFile( _T("test.txt"), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_ALWAYS, 0, NULL);

  26:     if(hFile != INVALID_HANDLE_VALUE )

  27:     {

  28:         char line[256] = {0};

  29:         BOOL bResult;

  30:         bResult = ReadFile(hFile, line, sizeof(line), &nBytes, NULL);

  31:         if(nBytes!=0)

  32:         {

  33:             cout << "讀入內容: " << endl;

  34:             cout << line << endl;

  35:         }

  36:         CloseHandle(hFile);

  37:         system("pause");

  38:     }

  39:     return 0;

  40: }