老师你好，我照着你的代码写了一遍，代码的意思就是从consul中获取mysql配置，

func GetConsulConfig(host string, port int64, prefix string) (config.Config, error) {
		source := consul.NewSource(
			consul.WithAddress(host+":"+strconv.FormatInt(port, 10)),
			consul.WithPrefix(prefix),
			consul.StripPrefix(true),
		)
		newConfig, err := config.NewConfig()
		if err != nil {
			return newConfig, err
		}
		err = config.Load(source)
		return newConfig, err
}

func GetMysqlFromConsul(config config.Config, path ...string) *MysqlConfig {
	mysqlConfig := &MysqlConfig{}
	config.Get(path...).Scan(mysqlConfig)
	return mysqlConfig
}

func main(){
	consulConfig, err := common.GetConsulConfig("127.0.0.1", 8500, "/micro/config")
	......
	mysqlInfo := common.GetMysqlFromConsul(consulConfig, "mysql")
	......
	fmt.Printf("Host:%s\nuser:%s\npassword:%s\ndatabase:%s\nport:%d\n", mysqlInfo.Host, mysqlInfo.User, mysqlInfo.Password, mysqlInfo.Database, mysqlInfo.Port)
}

output：
Host:
user:
password:
database:
port:0

然后我试着打印从consul获取到的mysql配置，发现为空，获取不了，这么是什么情况呢？