c语言创建多级目录

int  MyCreateDirectory(char * str)
{
 char dirPath[MAX_PATH];
 char *lpszTmp;
 //WIN32_FIND_DATA FindData;
 //HANDLE hFind;
 int i=0;

 sprintf(dirPath,"%s",str);
 for(i=strlen(dirPath);i > 2;i--)
 {
  if(dirPath[i-1] != '//')
  {
   dirPath[i] = '/0';
  break;
  }
 }
 
 //MessageBox(NULL,dirPath,"DD",MB_OK);
 for(i=strlen(dirPath);i > 2;i--)
 {
  if(dirPath[i-1] == '//')
  {
   dirPath[i-1] = '/0';
   break;
  }
 }
 //MessageBox(NULL, dirPath,"dd",MB_OK);
 //MessageBox(NULL,dirPath,"DD",MB_OK);
 //hFind = FindFirstFile(dirPath,&FindData);

 if(GetFileAttributes(dirPath) == 0xffffffff)
 {
  //遍历上级目录
  if(strlen(dirPath) < 3) return 0;
  MyCreateDirectory(dirPath);
 }
 CreateDirectory(str,NULL);
 return 1;
}