as shown below, li is rendered dynamically, and I want to click on it when the background of each li tag turns red. At first, I wanted to add styles by controlling active"s true or false, but this didn"t work. Why 
as shown below, li is rendered dynamically, and I want to click on it when the background of each li tag turns red. At first, I wanted to add styles by controlling active"s true or false, but this didn"t work. Why
because your li is rendered dynamically, you need to render the click event after rendering. Before li rendering, your click event has already been executed, and you have not added
find the problem, go straight to the above picture
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