36 lines
575 B
Go
36 lines
575 B
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
)
|
|
|
|
func worker(id int, jobs <-chan int, results chan<- int) {
|
|
for j := range jobs {
|
|
fmt.Println("worker", id, "started job", j)
|
|
time.Sleep(time.Second)
|
|
fmt.Println("worker", id, "finished job", j)
|
|
results <- j * 2
|
|
}
|
|
}
|
|
|
|
func main() {
|
|
|
|
//通道缓存五个
|
|
const numJobs = 5
|
|
jobs := make(chan int, numJobs)
|
|
results := make(chan int, numJobs)
|
|
|
|
for w := 1; w <= 3; w++ {
|
|
go worker(w, jobs, results)
|
|
}
|
|
|
|
for j := 1; j <= numJobs; j++ {
|
|
jobs <- j
|
|
}
|
|
close(jobs)
|
|
|
|
for a := 1; a <= numJobs; a++ {
|
|
println(<-results)
|
|
}
|
|
} |