func InitLog() {
    pwd, _ := os.Getwd()
    viper.AddConfigPath(pwd)
    viper.SetConfigType("yml")
    viper.SetConfigName("conf.yml")
    fmt.Printf("路径：%s \n", pwd)
    if err := viper.ReadInConfig(); err == nil {
        log.Println("Using config file:", viper.ConfigFileUsed())
    }
    logConfig := &log4go.LogConfig{}
    if err := viper.UnmarshalKey("log4go", logConfig); err != nil {
        log.Fatalln("[err] Unmarshal log4go config error, ", err)
    }
    if err := log4go.SetupLog(*logConfig); err != nil {
        log.Fatalln("[err] Setup log4go config, ", err)
    }
}

func main() {
    InitLog()
    log4go.Info("console Writer for log4go")
    log4go.Info("console Writer for log4go")
    log4go.Debug("console Writer for log4go")
    log4go.Error("console Writer for log4go")
    time.Sleep(2 * time.Second)
}