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Teacher, I typed according to your code. Only the header part can be seen in the browser, and the other two parts are not displayed.
Check the source code to see if there is any code written by you. When asking questions, it is best to send your code first. If you ask this question, we can only rely on guessing
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Check the source code to see if there is any code written by you. When asking questions, it is best to send your code first. If you ask this question, we can only rely on guessing