Cold_DataFiltering/logger/logger.go

package logger

import (
	"log"
	"os"
)

func init() {
	file, err := os.OpenFile("./log.txt", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
	if err != nil {
		panic(any("open log file error"))
	}
	log.SetFlags(log.Ldate)
	log.SetPrefix("earlyWarningSystem")
	log.SetOutput(file)
}