Selenium-webdriver (Python) (v) Hierarchical positioning

Scene:

If two controls, their long appearance, also called "John", the only difference is one in Beijing, one in Shanghai, then we can go through their cities, districts, streets, to find them.

This problem is often encountered in actual tests: There are many elements on the page that are essentially the same, and you now need to navigate to one of them. Because the attributes are basically equal, there is a bit of trouble locating them, and you need to use hierarchical positioning. The parent element is positioned first, and then the descendant element is positioned through the parent element.

 
To copy this code to Notepad, it will be saved as a level_locate.html file (note that this page needs to be placed in the same directory as our automation script) and the browser opens: