WordPress allows us to batch edit article attributes, but only 15 items are displayed on each page. Sometimes, you may feel that it is not enough and want to add more. The method is:
1. Open wp-admin/includes/post.php
2. Find the sentence below
wp("post_type=post&what_to_show=posts$post_status_q&posts_per_page=15
&order=$order&orderby=$orderby");
Change 15 to the number of articles you want to output.
Note: The specific number of articles depends on your host situation. Generally, 50 to 100 articles is enough.