def find_idxSubHandle(pHandle, winClass, index=0):

            """

            已知子窗口的窗体类名

            寻找第index号个同类型的兄弟窗口

            """

            assert type(index) == int and index >= 0  # 断言

            handle = win32gui.FindWindowEx(pHandle, 0, winClass, None)

            while index > 0:

                handle = win32gui.FindWindowEx(pHandle, handle, winClass, None)

                index -= 1

            return handle