golang channle阻塞

当一个channle容量写满时，会出现阻塞状态

package main

func main() {

	var c1 = make(chan int, 10)

	for i := 0; i < 10; i++ {
		c1 <- i
	}

	c1 <- 10
}

当channle写满时，并且有往外读的情况下，channle会一直阻塞至有读出为止，而后再向channle中写入

package main

import (
	"fmt"
	"time"
)

func readChan(inchan chan int, exitchan chan bool) {
	for {
		time.Sleep(time.Millisecond * 500)
		res, ok := <-inchan
		if !ok {
			break
		}
		fmt.Printf("读取%d\n", res)
	}
	exitchan <- true
	close(exitchan)
}

func writeChan(inchan chan int) {
	for i := 1; i <= 50; i++ {
		inchan <- i
		fmt.Printf("写入%d\n", i)
	}
	close(inchan)
}
func main() {
	inchan := make(chan int, 10)
	exitchan := make(chan bool, 1)

	go writeChan(inchan)
	go readChan(inchan, exitchan)

	for {
		_, ok := <-exitchan
		if !ok {
			break
		}
	}
}