Teacher Zhu, why do I write the refresh verification code according to your method (the code is the same, there is no mistake), and there is a picture when I enter it for the first time, but there is no picture after refreshing.
Mine is the same. Once I refresh, there is no verification code image. Only when I click refresh again does the verification code image appear.
I guess we are the same. 404
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Mine is the same. Once I refresh, there is no verification code image. Only when I click refresh again does the verification code image appear.
I guess we are the same. 404