go函数闭包

package main

import (
	"fmt"
)

func fun1() int {
	return 1
}

//返回函数闭包
func fun2() func() (int, int) {
	return func() (int, int) {
		return 3, 4
	}
}

func main() {
	f1 := fun2()
	fmt.Println(f1())
	fmt.Println(fun2()())
}

3 4
3 4