workerPool _ golang

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In this example we'll look at how to implement a worker pool using goroutines and channels

package mainimport (    "fmt"    "time")func worker(id int, jobs <-chan int, result chan<- int) {    for j := range jobs {        fmt.Println("worker", id, "processing job", j)        time.Sleep(time.Second)        result <- j * 2    }}func main() {    jobs := make(chan int, 100)    result := make(chan int, 100)    for w := 1; w <= 3; w++ {        go worker(w, jobs, result)    }    for j := 1; j <= 9; j++ {        jobs <- j    }    close(jobs)    for a := 1; a <= 9; a++ {        fmt.Println("<-result", <-result)    }}

worker 1 processing job 1worker 2 processing job 2worker 3 processing job 3worker 1 processing job 4worker 2 processing job 5worker 3 processing job 6<-result 2<-result 4<-result 6worker 1 processing job 7worker 2 processing job 8worker 3 processing job 9<-result 8<-result 10<-result 12<-result 14<-result 16<-result 18

總結 :

　　1 : ....