无法翻页问题 #22

n = 2
while True:
.....
 # go to next page or chapter ；266行
            try:
                next_btn.click()
            except Exception:
                self.switch_to_context(tag=n + 1)
            n += 1

 def switch_to_context(self, tag=2):
        """switch to main body of the book"""
        self.S('button.catalog').click()
        self.S(f'li.chapterItem:nth-child({tag})').click()