1，写数据库dao层的时候用到了反射机制。在反射的时候要注意你的对象时指针还是结构体这样区别也很大。以下接受几种常用的放射方法

reflect.type of

package main

import (
	"fmt"
	"reflect"
)

type hehe struct {
	NameFile string "PrimaryKey"
	age      int
}

func main() {
	hehe := &hehe{"ssssssssssss",33}
	yingShe(hehe)
}

func yingShe(obj interface{}) {
	hehe := &hehe{"ssssssssssss",22}
	for i := 0; i < reflect.TypeOf(obj).Elem().NumField(); i++ {
		f := reflect.TypeOf(obj).Elem().Field(i)
		fmt.Print(f.Name," : ")
		switch reflect.ValueOf(hehe).Elem().FieldByName(f.Name).Kind() {
		case reflect.Int:
			val := reflect.ValueOf(hehe).Elem().FieldByName(f.Name).Int()
			fmt.Println(val)

		default:
			val := reflect.ValueOf(hehe).Elem().FieldByName(f.Name)
			fmt.Print(val)

		}
		fmt.Println(",",reflect.TypeOf(hehe).Elem().Field(i).Tag)

	}
}

NameFile : ssssssssssss,PrimaryKey
age : 22,