the-way-to-go_ZH_CN/eBook/exercises/chapter_14/gosum.go

// gosum.go
package main

import (
	"fmt"
)

func sum(x, y int, c chan int) {
	c <- x + y
}

func main() {
	c := make(chan int)
	go sum(12, 13, c)
	fmt.Println(<-c) // 25
}