Go语言产生素数
package main
// 生成2, 3, 4, ... 到 channel 'ch'中.
func Generate(ch chan<- int) {
for i := 2; ; i++ {
ch <- i // Send 'i' to channel 'ch'.
}
}
// 从管道复制值 'in' 到 channel 'out',
// 移除可整除的数 'prime'.
func Filter(in <-chan int, out chan<- int, prime int) {
for {
i := <-in // 接收值 'in'.
if i%prime != 0 {
out <- i // 传入 'i' 到 'out'.
}
}
}
func main() {
ch := make(chan int) // Create a newchannel.
go Generate(ch) // Launch Generate goroutine.
for i := 0; i < 10; i++ {
prime := <-ch
print(prime, "\n")
ch1 := make(chan int)
go Filter(ch, ch1, prime)
ch = ch1
}
}