As shown in the picture, I am making a website where I can write articles. On the left, I can create a new article, and on the right is the content of the article. How can I click on the title on the left to link to the content on the right, that is, click on different topics on the left to correspond to different topics on the right? Title, tag, content, and want to send it to the background through ajax. Different IDs are obtained through auto-increment on the left. How can I click the button on the right to send the ID at the same time. Thanks.