Go基础知识学习-习题题解-Exercise: Fibonacci closure

package main

import "fmt"

// fibonacci is a function that returns
// a function that returns an int.
func fibonacci() func() int {
	le:=-1
	ri:=1
	return func()int{
		fib:=le+ri
		le=ri
		ri=fib
		return fib
	}
}

func main() {
	f := fibonacci()
	for i := 0; i < 10; i++ {
		fmt.Println(f())
	}
}