go 空接口和结构体类型判断,
2022/3/28 6:25:59
本文主要是介绍go 空接口和结构体类型判断,,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
package main
import (
"fmt"
)
type Animal interface {
Talk()
Eat()
Name() string
}
type Dog struct {
}
func (d Dog) Talk() {
fmt.Println("汪汪汪")
}
func (d Dog) Eat() {
fmt.Println("我在吃骨头")
}
func (d Dog) Name() string {
fmt.Println("我的名字叫旺财")
return "旺财"
}
type Pig struct {
}
func (d Pig) Talk() {
fmt.Println("坑坑坑")
}
func (d Pig) Eat() {
fmt.Println("我在吃草")
}
func (d Pig) Name() string {
fmt.Println("我的名字叫猪八戒")
return "猪八戒"
}
func testInterface1() {
var d Dog
var a Animal
a = &d
a.Eat() a.Talk() a.Name() var pig Pig a = &pig a.Eat() a.Talk() a.Name() fmt.Printf("%T %v\n", a, a)
}
func just(a Animal) {
//d, ok := a.(Dog)
//p, ok := a.(Pig)
switch v := a.(type) {
case Dog:
fmt.Printf("v is dog, %v\n", v)
case Pig:
fmt.Printf("v is dog, %v\n", v)
default:
fmt.Printf("not support")
}
}
func testInterface2() {
var d Dog
just(&d)
}
func main() {
testInterface1()
//testInterface2()
}
这篇关于go 空接口和结构体类型判断,的文章就介绍到这儿,希望我们推荐的文章对大家有所帮助,也希望大家多多支持为之网!
- 2024-04-01got an unexpected keyword argument
- 2024-03-30维多利亚的秘密 golang入坑系统
- 2024-03-29mongodb sort by date
- 2024-03-29go swagger
- 2024-03-25mongodb cdc
- 2024-03-25how to use go in vscode
- 2024-03-22mongooseserverselectionerror: connect econnrefused ::1:27017
- 2024-03-21pymongo insert_many
- 2024-03-18projection mongodb
- 2024-03-14clickhouse-go