Golang的日志处理

Golang日志库的使用log

不懂怎么编辑这个东西，直接上代码：

package main

import ( “log” “os” “io/ioutil” “io” )

var ( Trace *log.Logger // 记录所有日志 Info *log.Logger // 重要的信息 Warning *log.Logger // 需要注意的信息 Error *log.Logger // 致命错误 )

func init() { file, err := os.OpenFile(“file”, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666) if err != nil { log.Fatalln(“Failed to open error log file:”, err) }

Trace = log.New(ioutil.Discard, "TRACE: ", log.Ltime|log.Lshortfile) Info = log.New(os.Stdout, "Info: ", log.Ltime|log.Lshortfile) Warning = log.New(os.Stdout, "Warning: ", log.Ltime|log.Lshortfile) Error = log.New(io.MultiWriter(file, os.Stderr), "Error", log.Ltime|log.Lshortfile)

}

func main() { Trace.Println(“I have something standard to say”) Info.Println(“Special Information”) Warning.Println(“There is something you need to know about”) Error.Println(“Something has failed”) }