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Uj uG Golang设计模式之代理模式 - i'm jackey - i'm jackey

Golang设计模式之代理模式

Jackey Golang 181 次浏览 , , 没有评论
package main

import "fmt"

type Subject interface {
    Do() string // 实际业务, 业务系统,检查是否欠费,检查密码是否正确
}

type RealSubject struct {
}

func (sb RealSubject) Do() string {
    return "智能执行"
}

type Proxy struct {
    real  RealSubject
    money int
}

func (p Proxy) Do() string {
    if p.money > 0 {
        return p.real.Do()
    } else {
        return "请充值"
    }
}

func main() {
    var sub Subject
    sub = &Proxy{money: 0}
    fmt.Println(sub.Do())
}

 

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