go channel

package main

import (
	"time"
	"fmt"
)

func main()  {

	c := make(chan string)

	go func() {
		time.Sleep(1 * time.Second)
		c <- "hello from chan" // 数据发送到channel中
	}()

	msg := <- c // 阻塞知道受到数据

	fmt.Print(msg) 
}