go实现切片任意位置插入

package main

import "fmt"

func main() {
        people := [][2]int{
                {7, 0}, {4, 4}, {27, 1}, {5, 0}, {6, 1}, {5, 2},
        }
        //把{27, 1}插到第一个位置
        p := people[2] // 先复制一份
        copy(people[1:3], people[0:3])
        people[0] = p
        fmt.Println(people)

        //把{27, 1}复制到最后一个位置，第一个位置同理
        //p := people[2]
        //copy(people[2:], people[3:])
        //people[len(people)-1] = p
        //fmt.Println(people)
}