zeromicro
Add log level of warn
In many other logging frameworks, log levels always include debug, info, warn, error. However, in go-zero framework, log levels only include debug, info, error, severe. In many business scenarios, warn level logs are more semantic.
我确实需要warn级别的日志 增加warn后，可以更好的过滤出需要注意而不影响程序运行的日志 部分第三方库支持传入logger，但定义的接口大多都包含debug、info、warn、error四个级别， 增加warn后就免去了自定义logger的麻烦 希望能考虑一下
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I do need warn level logging After adding warn, you can better filter out logs that require attention without affecting the running of the program. Some third-party libraries support incoming loggers, but most of the defined interfaces include four levels: debug, info, warn, and error. Adding warn eliminates the trouble of customizing the logger. Hope you can consider it
