2018-07-17

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package main

import "fmt"

func main()  {
    message := make( chan string)
    go func() {
        message <- "hello goroutine!"
    }()
    str := <-message
    fmt.Println(str)
    fmt.Println("hello")
}

package main

import (
    "fmt"
    "time"
)

func main()  {
    message := make( chan string)
    go func() {
        message <- "hello goroutine!"
    }()
    go func() {
        time.Sleep(2*time.Second)
        str := <-message
        str = str + "I'm goroutine!"
        message <- str
    }()
    time.Sleep(3*time.Second)
    str := <-message
    fmt.Println(str)
    fmt.Println("hello")
}

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