方法一

package main
import "fmt"
func main() {
    result := 0
    for i := 1; i <= 10; i++ {
        result = fibonacci(i)
        fmt.Printf("fibonacci(%d) is: %d\n", i, result)
    }
}
func fibonacci(n int) (res int) {
    if n <= 2 {
        res = 1
    } else {
        res = fibonacci(n-1) + fibonacci(n-2)
    }
    return
}

方法二

package main

import "fmt"

// 1, 1, 2, 3, 5, 8, 13, ...
func Fibonacci() func() int {
    a, b := 0, 1
    return func() int {
        a, b = b, a+b
        return a
    }
}

func main() {
    aa := Fibonacci()
    fmt.Println(aa())
    fmt.Println(aa())
    fmt.Println(aa())
    fmt.Println(aa())
}