VC++

void StringTest(CString source, CStringArray& dest)

{

	if(source.IsEmpty())

	{

	}

	else

	{

		CString temp = source.Left(1);

		CStringArray arr;

		source = source.Mid(1);

		StringTest(source,dest);

		arr.Append(dest);

		for(int i=0;i<dest.GetSize();i++)

		{

			CString data = dest.GetAt(i);

			dest.SetAt(i,temp+data);

		}

		dest.Append(arr);

		dest.Add(temp);

	}

}

測试结果：

void CTestDlg::OnOK()

{

	// TODO: Add extra validation here

	CStringArray result;

	CString str = "abc";

	StringTest(str,result);

	CString msg;

	for(int j=0;j<result.GetSize();j++)

	{

		msg +=result.GetAt(j) + ",";

	}

	MessageBox("初始数据: "+ str + "\n全部组合: " +msg.Mid(0,msg.GetLength() - 1),"提示",MB_ICONINFORMATION|MB_OK);

	CDialog::OnOK();

}