84669 person learning
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Look at the passed array, which is usually a two-dimensional array or a three-dimensional array, and traverse directly
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Look at the passed array, which is usually a two-dimensional array or a three-dimensional array, and traverse directly