24 windows_24_windows_file 文件系统 - 文件

windows_24_windows_file 文件系统 - 文件 


  1. // windows_24_windows_file.cpp : 定义控制台应用程序的入口点。
  2. //
  4. #include "stdafx.h"
  5. #include <windows.h>
  7. void Create( )
  8. {
  9.   //创建文件
  10.   HANDLE hFile = CreateFile( "D:\\MyTest.txt", 
  11.     GENERIC_READ | GENERIC_WRITE,
  12.     0/*独占模式*/, 
  13.     NULL, 
  14.     CREATE_ALWAYS, 
  15.     FILE_ATTRIBUTE_NORMAL,
  16.     NULL );
  18.   //关闭文件
  19.   CloseHandle( hFile );
  20. }
  21. //写数据
  22. void Write( )
  23. {
  24.   //打开文件
  25.   HANDLE hFile = CreateFile( "D:\\MyTest.txt",
  26.     GENERIC_WRITE,
  27.     0,
  28.     NULL,
  29.     OPEN_EXISTING,
  30.     FILE_ATTRIBUTE_NORMAL,
  31.     NULL );
  32.   if (hFile == NULL)
  33.   {
  34.     printf( "error:handle\n" );
  35.     return;
  36.   }
  37.   //写入数据
  38.   CHAR szBuff[] = "Hello File";
  39.   DWORD nWritten = 0;
  40.   WriteFile( hFile, szBuff, strlen( szBuff ), &nWritten, NULL );
  41.   //关闭文件
  42.   CloseHandle( hFile );
  43. }
  44. void Read( )
  45. {
  46.   //打开文件
  47.   HANDLE hFile = CreateFile( "D:\\MyTest.txt",
  48.     GENERIC_READ,
  49.     0,
  50.     NULL,
  51.     OPEN_EXISTING,
  52.     FILE_ATTRIBUTE_NORMAL,
  53.     NULL );
  54.   //获取文件长度
  55.   DWORD nHigh = 0;
  56.   DWORD nLow = GetFileSize( hFile, &nHigh );
  57.   //分配空间
  58.   LPSTR pszBuf = (LPSTR)malloc( nLow + 1 );
  59.   memset( pszBuf, 0, nLow + 1 );
  60.   //设置当前读取的位置 
  61.   SetFilePointer( hFile, 1, NULL, FILE_BEGIN );
  62.   //读取数据
  63.   DWORD nRead = 0;
  64.   ReadFile( hFile, pszBuf, nLow + 1, &nRead, NULL );
  65.   printf( "%s", pszBuf );
  66.   free( pszBuf );
  67.   //关闭文件
  68.   CloseHandle( hFile );
  69. }
  70. //操作
  71. void Operate( )
  72. {
  73.   //复制文件
  74.   CopyFile( "D:\\MyTest.txt", "D:\\MyTest1.txt", FALSE );
  75.   //删除文件
  76.   DeleteFile( "D:\\MyTest.txt" );
  77. }
  78. //打印时间
  79. void PrintFileTime( LPSTR pszName, LPFILETIME pFileItem )
  80. {
  81.   //转换成本时区时间
  82.   FileTimeToLocalFileTime(
  83.     pFileItem,  // pointer to UTC file time to convert
  84.     pFileItem   // pointer to converted file time
  85.     );
  87.   //将文件时间转换成系统时间
  88.   SYSTEMTIME systime = { 0 };
  89.   FileTimeToSystemTime( pFileItem, &systime );
  90.   printf( "\n%s %d-%d-%d  %d:%d:%d", pszName, systime.wYear, systime.wMonth,
  91.     systime.wDay, systime.wHour, systime.wMinute, systime.wSecond );
  92. }
  93. //获取属性
  94. void Attri( )
  95. {
  96.   //获取文件的基本属性
  97.   DWORD nAttri = GetFileAttributes( "D:\\MyTest1.txt" );
  98.   printf( "nAttri = %0X\n", nAttri );
  99.   //获取文件的属性信息
  100.   WIN32_FILE_ATTRIBUTE_DATA data = { 0 };
  101.   GetFileAttributesEx( "D:\\MyTest1.txt", GetFileExInfoStandard, &data );
  102.   printf( "\nAttri=%d", data.dwFileAttributes );
  103.   printf( "\nSizeHigh=%d", data.nFileSizeHigh );
  104.   printf( "\nSizeLow=%d",data.nFileSizeLow  );
  105.   PrintFileTime( "\nCreateTime:", &data.ftCreationTime );
  106.   PrintFileTime( "\nCreateTime:", &data.ftLastAccessTime );
  107.   PrintFileTime( "\nCreateTime:", &data.ftLastWriteTime );
  108. }
  109. int _tmain(int argc, _TCHAR* argv[])
  110. {
  111.   Create( );
  112.   Write( );
  113.   Read( );
  114.   Operate( );
  115.   Attri( );
  116. 	return 0;
  117. }





posted @ 2016-06-10 10:40  -刀狂剑痴-  阅读(189)  评论(0)  编辑  收藏  举报