标签：atm print lan 余额 port ring amount 账户 存取款
package main
import "fmt"
/*
@ATM(闭包练习)
·写一个Atm(函数)，返回存款，取款两个内层函数
·存款，取款两个函数，都以一个金额为参数，返回存取之后的余额
·将各自的余额存在函数闭包中
·比尔，马云，你任意存取之后，输出各自余额
*/
func Atm(name string) (func(amount int) (ballance int), func(amount int) (ballance int)) {
/*
内存函数的账户姓名
内存函数的账户余额
*/
var accountName string
var accountBallance int
accountName = name
/*欢迎语*/
fmt.Println("欢迎你", accountName)
/*定义存款函数*/
saveFunc := func(amount int) (ballance int) {
accountBallance += amount
return accountBallance
}
/*定义取款函数*/
drawFunc := func(amount int) (ballance int) {
accountBallance -= amount
return accountBallance
}
/*返回存取款函数*/
return saveFunc, drawFunc
}
func main() {
/*调用闭包函数得到各自的存取款函数副本*/
billSave, billDraw := Atm("Bill")
jackSave, jackDraw := Atm("Jack")
diorsSave, diorsDraw := Atm("Diors")
/*各自存款*/
billBallance := billSave(1000000)
jackBallance := jackSave(500000)
diorsBallance := diorsSave(999)
/*各自取款*/
diorsBallance = diorsDraw(500)
billBallance = billDraw(300000)
diorsBallance = diorsDraw(300)
jackBallance = jackDraw(400000)
diorsBallance = diorsDraw(100)
/*打印余额*/
fmt.Println(billBallance,jackBallance,diorsBallance)
}
输出：
欢迎你 Bill 欢迎你 Jack 欢迎你 Diors 700000 100000 99
标签：atm print lan 余额 port ring amount 账户 存取款
原文地址：https://www.cnblogs.com/yunweiqiang/p/11802517.html
