golang 打乱数组顺序

 

 

 

package main

import (
    "fmt"
    "math/rand"
    "time"
)

func MicsSlice(origin []int64, count int) []int64 {
    tmpOrigin := make([]int64, len(origin))

    copy(tmpOrigin, origin)

    rand.Seed(time.Now().Unix())

    rand.Shuffle(len(tmpOrigin), func(i int, j int) {
        tmpOrigin[i], tmpOrigin[j] = tmpOrigin[j], tmpOrigin[i]
    })

    fmt.Println("result....", tmpOrigin)

    result := make([]int64, 0, count)
    for index, value := range tmpOrigin {
        if index == count {
            break
        }

        result = append(result, value)

    }

    return result
}

func main() {
    dest := MicsSlice([]int64{1, 2, 3, 4, 5, 6, 73, 2}, 2)
    fmt.Println("result....", dest)
}