​

import (

    "fmt"

    "runtime"

)

​

func main() {

    data := []int{1, 2, 3, 4, 5}

    ch := make(chan int, 5)

    runtime.GOMAXPROCS(runtime.NumCPU())

    for i, v := range data {

        go func(ii int, vv int) {

            fmt.Println("index:", ii, " ; value:", vv)

            ch <- ii

        }(i, v)

    }

    for i := 0; i < cap(ch); i++ {

        <-ch

    }

}

​