go语言（十五）----reflect

package main

import (
	"fmt"
	"reflect"
)

type User struct {
   
	Id int
	Name string
	Age int
}

func (this *User) Call() {
   

	fmt.Println("user is called...")
	fmt.Println("%v\n",this)

}




func main() {
   
	user := User{
   1,"AceId",18}
	DoFileAndMethod(user)
}

func DoFileAndMethod(input interface{
   }) {
   

	//获取input的type
	intputType := reflect.TypeOf(input)
	fmt.Println("inputType is:",intputType)
	//获取input的value
	inputValue := reflect.ValueOf(input)
	fmt.Println("inputValue is :",inputValue)


	//通过type获取里面的字段
	//1、获取interface的reflect.type,通过Type得到Numfiled，进行遍历
	//2、得到每个field，数据类型
	//3、通过field有一个Interface（）方法得到对应的value
	for i :=0;i<intputType.NumField();i++ {
   
		field := intputType.Field(i)
		value := inputValue.Field(i).Interface()
		fmt.Printf("%s: %v = %v\n",field,field.Type,value)
	}

	//通过Type获取里面的 方法，调用
	for i :=0;i < intputType.NumMethod();i++ {
   
		m := intputType.Method(i)
		fmt.Println("%s: %v\n",m.Name,m.Type)

	}
}