Golang 递归实现菲波那切数列

package main

import "fmt"

func main() {
	var s int64 = Fibonacci(7)
	fmt.Println(s)
}

func Fibonacci(num int64) (int64) {
	if num == 1 || num == 2 {
		return 1
	} else {
		return Fibonacci(num-2) + Fibonacci(num-1)
	}
}