| 1。
CString GetSuffix(CString strFileName)
{
return strFileName.Right(strFileName.GetLength()-strFileName.ReverseFind('.')-1);
}
2。PathFindExtension
3。忽略大小写方法
CString::MakeUpper();全部转化为大写;
CString::MakeLower();全部转化为小写; Added: CFileDialog :: GetFileExt(); http://blog.csdn.net/joewolf/archive/2009/06/18/4279882.aspx | 
