[Go]select中设置超时的方法

package main

import (
	"fmt"
	"time"
)

func dataChanTest(data chan int){
	tickTimer := time.NewTicker(5 * time.Second)
	for{
		select {
		case a,_:=<-data:
			fmt.Println(a)
		case t:=<-tickTimer.C:
			fmt.Println("Time Out ! "+t.String())
		}
	}
}

func main() {
	var data = make(chan int,10)
	go dataChanTest(data)
	for i:=0;;i++{
		data<-i
		time.Sleep(time.Second * 3)
	}
}

package main

import (
	"fmt"
	"time"
)

func dataChanTest(data chan int) {
	for {
		select {
		case a, _ := <-data:
			fmt.Println(a)
		case t := <-time.After(5 * time.Second):
			fmt.Println("Time Out ! " + t.String())
		}
	}
}

func main() {
	var data = make(chan int, 10)
	go dataChanTest(data)
	for i := 0; ; i++ {
		data <- i
		time.Sleep(time.Second * 3)
	}
}