package main

import "fmt"

// 生产者：产生 1~5
func producer1(out chan<- int) {
	for i := 1; i <= 5; i++ {
		fmt.Println("[Producer] 发送:", i)
		out <- i
	}
	close(out)
}

// 处理者：把数字放大 10 倍
func multiplier(in <-chan int, out chan<- int) {
	for v := range in {
		fmt.Println("[Multiplier] 接收:", v)
		out <- v * 10
	}
	close(out)
}

// 消费者：打印结果
func consumer1(in <-chan int) {
	for v := range in {
		fmt.Println("[Consumer] 最终结果:", v)
	}
}

func main() {
	ch1 := make(chan int, 2) // 有缓冲，减轻 producer 阻塞
	ch2 := make(chan int, 2)

	go producer1(ch1)
	go multiplier(ch1, ch2)
	consumer1(ch2)
}