例子:
CString strSource = L"你叫什么名字";
CString strUser = L"您叫啥名呢"
CString strDiferr;
for(int dex = 0 ; dex < strSource.GetLength() ; ++ dex)
{
CString str = strUser.Mid(dex , 1);
if(strSource.Find(str) == -1)
strDiferr += str;
}
outputDebugString(strDiferr+L"\n");