使用来遍历文件和目录牛

#region 声明WIN32API函数以及结构 **************************************

[Serializable,

ructLayout

(quential,

CharSet = to

),

stFitMapping(false)]

private struct WIN32_FIND_DATA

{

public int dwFileAttributes;

public int ftCreationTime_dwLowDateTime;

public int ftCreationTime_dwHighDateTime;

public int ftLastAccessTime_dwLowDateTime;

public int ftLastAccessTime_dwHighDateTime;

public int ftLastWriteTime_dwLowDateTime;

public int ftLastWriteTime_dwHighDateTime;

public int nFileSizeHigh;

public int nFileSizeLow;

public int dwReserved0;

public int dwReserved1;

[rshalAs

(ValTStr,

SizeConst = 260)]

public string cFileName;

[rshalAs

(ValTStr,

SizeConst = 14)]

public string cAlternateFileName;

}

[lImport

(\"l\",

CharSet = to,

SetLastError = true)]

private static extern IntPtr FindFirstFile(string pFileName, ref WIN32_FIND_DATA pFindFileData);

[lImport

(\"l\",

CharSet = to,

SetLastError = true)]

private static extern bool FindNextFile(IntPtr hndFindFile, ref WIN32_FIND_DATA lpFindFileData);

[lImport(\"l\", SetLastError = true)]

private static extern bool FindClose(IntPtr hndFindFile);

private static long ToLong( int height , int low)

{

long v = ( uint ) height ;

v = v 0x20;

v = v | ( ( uint )low );

return v;

}

private static void WinIOError(int errorCode, string str)

{

switch (errorCode)

{

case 80:

throw new Exception(\"IO_FileExists :\" + str);

case 0x57:

throw new Exception(\"IOError:\" + MakeHRFromErrorCode(errorCode));

case 0xce:

throw new thTooLongException(\"PathTooLong:\" + str );

case 2:

throw new leNotFoundException(\"FileNotFound:\" + str);

case 3:

throw new rectoryNotFoundException(\"PathNotFound:\" + str);

case 5:

throw new UnauthorizedAccessException(\"UnauthorizedAccess:\" + str);

case 0x20:

throw new Exception(\"IO_SharingViolation:\" + str);

}

throw new Exception(\"IOError:\" + MakeHRFromErrorCode(errorCode));

}

private static int MakeHRFromErrorCode(int errorCode)

{

return (- | errorCode);

}

#endregion

#region 内部代码群 ****************************************************

private static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1);

/// summary

/// 查找处理的底层句柄

/// /summary

private Ptr intSearchHandler = INVALID_HANDLE_VALUE;

private WIN32_FIND_DATA myData = new WIN32_FIND_DATA();

/// summary

/// 开始搜索标志

而又对自己购买的商品有维权需求 /// /summary

private bool bolStartSearchFlag = false;

/// summary

/// 关闭内部句柄

/// /summary

private void CloseHandler()

{

if (SearchHandler != INVALID_HANDLE_VALUE)

{

FindClose(SearchHandler);

SearchHandler = INVALID_HANDLE_VALUE;

}

}

/// summary

/// 开始搜索

/// /summary

/// returns操作是否成功/returns

private bool StartSearch()

{

bolStartSearchFlag = true;

bolIsEmpty = false;

objCurrentObject = null;

intLastErrorCode = 0;

string strPath = bine(strSearchPath, rSearchPattern);

oseHandler();

intSearchHandler = FindFirstFile(strPath, ref myData);

if (intSearchHandler == INVALID_HANDLE_VALUE)

{

intLastErrorCode = tLastWin32Error();

if (intLastErrorCode == 2)

{

bolIsEmpty = true;

return false;

}

if( lThrowIOException )

WinIOError( intLastErrorCode , strSearchPath);

else

return false;

}

return true;

}

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