任意数据类型切片 golang

package main

import (
	"fmt"
	. "strconv"
)

type Element interface{}
type List []Element

type Person struct {
	name string
	age  int
}

func (P Person) String() string {
	return "My name is " + P.name + " my age is " + Itoa(P.age)
}

var slice_1 = []string{"hello"}
var map_1 = map[string]string{"city": "beijing", "name": "cs", "from": "usa"}

func main() {

	list := make(List, 5)
	list[0] = 1                    // an int
	list[1] = "Hello"              // a string
	list[2] = Person{"barry", 100} // struct
	list[3] = slice_1              // a slice
	list[4] = map_1                // a map

	for _, element := range list {
		switch v:=element.(type) { //v是具体的值对象了，而element还是interface对象
		case int:
			fmt.Println(element, ",int")
		case string:
			fmt.Println(element, ",string")
		case Person:
			fmt.Println(element, ",Person struct")
		default:
			fmt.Println(element, ",others like slice,map...")
		}
	}

}

下面是例子。

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