Selenium: element positioning

Selenium automated testing

1. Selenium's control of web pages is based on various front-end elements. In the process of use, the positioning of elements is the basis. Subsequent automatic control can only be carried out when the corresponding elements are accurately captured
⑴The previous introductionThe HTML of the front-end web page is composed of many tag elements in a hierarchical structure. For a certain tag, its position in the entire web page HTML is unique. Therefore, this tag element can be accurately found and manipulated by some methods.
⑵ UseThe find_element_by_* function of the WebDriver object can locate a Web page element
⑶ Use the find_elements_by_* function of the WebDriver object to locate multiple Web page elements
 
2. Automated testing steps: positioning elements -> operating elements -> verifying operation results -> recording test results

Locating a single element

1. When operating the browser, we only need to locate a certain element, so WebDriver provides many methods for locating a single element

2. After using Selenium to open a web page (the return value of the get method), it will return a WebDriver object, which can be usedThe positioning method below to locate an element

3. These methods locate elements through an attribute of the label, so these methods have a unified return value:
⑴ ⑴Find the element: Returns the WebElement object of the corresponding element
  ⑵Element not found: returns NoSuchElementException

4. After locating an element, we need to perform some operations on this element, which will be used here