36 lines
682 B
Go
36 lines
682 B
Go
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package main
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import (
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"fmt"
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"time"
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)
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func worker(id int, jobs <-chan int, results chan<- int) {
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for j := range jobs {
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fmt.Println("worker", id, "started job", j)
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time.Sleep(time.Second)
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fmt.Println("worker", id, "finished job", j)
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results <- j * 2
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}
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}
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// work_pool练习
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func main() {
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jobs := make(chan int, 100)
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results := make(chan int, 100)
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//开启三个goroutine
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for w := 1; w <= 3; w++ {
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go worker(w, jobs, results)
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}
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//五个任务，0-5的数字放到jobs这个通道中
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for j := 1; j <= 5; j++ {
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jobs <- j
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}
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//关闭job
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close(jobs)
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//把results这个通道中的数字，即jobs中的结果*2取出
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for a := 1; a <= 5; a++ {
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<-results
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}
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}
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