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我后台收到了字符串，解析成图片的时候，如何判断图片的原来的格式？
人生最曼妙的风景，竟是内心的淡定与从容！
Convert the image to base64 encoding. The type of the file will be indicated at the beginning, such as the data:image/image type mentioned above.
data:image/png;base64,
Don’t they all have heads similar to this?
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Convert the image to base64 encoding. The type of the file will be indicated at the beginning, such as the data:image/image type mentioned above.
data:image/png;base64,Don’t they all have heads similar to this?