删除整个目录_csdn怎样删除类目专栏-优快云博客

博客给出了两段C++代码，定义了DeleteTree和PreRemoveDirectory两个函数。DeleteTree函数用于删除指定目录树，调用PreRemoveDirectory函数并结合RemoveDirectory函数实现。PreRemoveDirectory函数用于预先处理目录，遍历目录下文件和子目录，递归删除子目录和文件。

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BOOL DeleteTree(CString DirName)
{ //成功：返回TRUE；否则，返回FALSE
BOOL Result;
Result=PreRemoveDirectory(DirName)
      && RemoveDirectory(DirName);
return Result;
}
BOOL PreRemoveDirectory(CString DirName)
{//成功：返回TRUE；否则，返回FALSE
LPTSTR lpBuffer;
UINT uSize;
CString fileName;
HANDLE hHeap;
BOOL result;
HANDLE hFindFile;
WIN32_FIND_DATA FindFileData;
uSize=(GetCurrentDirectory(0,NULL))*sizeof(TCHAR);
hHeap=GetProcessHeap();
lpBuffer=(LPSTR)HeapAlloc(hHeap,HEAP_ZERO_MEMORY,uSize);
GetCurrentDirectory(uSize,lpBuffer);
if (lpBuffer!=DirName) {//调整当前目录
  SetCurrentDirectory(DirName);
}
hFindFile=FindFirstFile("*.*",&FindFileData);
CString tFile;
if (hFindFile!=INVALID_HANDLE_VALUE) {
  do {
   tFile=FindFileData.cFileName;
   if ((tFile==".")||(tFile=="..")) continue;
   if (FindFileData.dwFileAttributes==
              FILE_ATTRIBUTE_DIRECTORY){
    if (DirName[DirName.GetLength()-1]!='//')
     PreRemoveDirectory(DirName+'//'+tFile);
    else
     PreRemoveDirectory(DirName+tFile);
    if (!RemoveDirectory(tFile))
     result=FALSE;
    else
     result=TRUE;
   }
   else
    if (!DeleteFile(tFile)) result=FALSE;
    else result=TRUE;
  }
  while (FindNextFile(hFindFile,&FindFileData));
  FindClose(hFindFile);
}
else {
  SetCurrentDirectory(lpBuffer);
  return FALSE;
}
SetCurrentDirectory(lpBuffer); //回复到原来的目录下
return result;
}