def press_and_tap(self, press_key, tap_key, n=1, interval=0, pre_dl=None, post_dl=None):
        """Press combination of two keys, like Ctrl + C, Alt + F4. The second
        key could be tapped for multiple time.

        Examples::

            bot.press_and_tap("ctrl", "c")
            bot.press_and_tap("shift", "1")

        **中文文档**

        按下两个键的组合键。
        """
        press_key = self._parse_key(press_key)
        tap_key = self._parse_key(tap_key)

        self.delay(pre_dl)
        self.k.press_key(press_key)
        self.k.tap_key(tap_key, n, interval)
        self.k.release_key(press_key)
        self.delay(post_dl)