browser.get(url) -sharp 
mei = browser.find_element_by_xpath("//ul/li[1]/span/span/a") -sharp 
meishi.click() -sharp 
liebiao = meishi.click().find_element_by_xpath("//li[@class="clear btm"]/div[1]/a/@href") -sharp ...

here comes the problem:
I clicked on the list page on the home page and needed to click on the details page on the list page. That is, two clicks, and the second click is to click on the previous page. The expression is a little messy.