How to select blocks and change attribute values ​​​​in jquery_jquery

jquery changes the value of the class attribute

Copy code The code is as follows:

$("#top_sta" ).removeClass().addClass("top_tab no_current");

1. First find the position of the div and p where the block is located

2. Remove the original class attribute, remove("***") means to remove *** in class, and remove() means to remove all values ​​in class.

Note: remove("") means to remove null characters, that is, no processing will be done to the class.

3.addclass("***"), add the string *** to class