1. For example, we want to get or get this div element.

2. We can do this by using $("div"), which is obtained directly through the element name. Be careful to add quotation marks.

3. Or you can add a class to the element, as shown in the picture, I added a bd class.

4. Then we can also get the div element by using $(".bd"). Note that the class name requires a dot.

5. In addition, ID is also a good method, but there can only be one ID and no duplicate names.

6. In jQuery, the ID must be added with a # sign to be valid.

7. Finally, I sorted out some of the more commonly used methods of obtaining elements in jQuery.