golang 解析中国天气网的数据，goroutine 的方式问题

大家好，请教一下大家问题了； ps:之前的代码有一点小问题，自己已经修改，现在这个版本ok！ 下面的代码是最近学习golang，手痒就想做一个有一点使用的东西，而不是“hello world”； 然后就有了下面的代码；目前的代码可以执行的， 1：按现在的这种方式， 提示·2015/04/17 09:57:09 Get http://www.weather.com.cn/weather/101010600.shtml: EOF· 说明这个页面没有办法打开；然后就停止执行其他语句了，程序结束执行。 为什么呢？不是应该并行执行的吗？ 2：对java比较数据，catch 后可以直接skip掉就ok了，不会影响其他的执行；golang的方式是什么？ ```go package main import ( "fmt" "log" "runtime" // "strconv" "strings" "time" "github.com/PuerkitoBio/goquery" ) type Weather struct { wind1 string temp1 string wea1 string wind string temp2 string wea2 string wind3 string temp3 string wea3 string wind4 string temp4 string wea4 string wind5 string temp5 string wea5 string wind6 string temp6 string wea6 string zsindex map[string]string } func MaxParallelism() int { maxProcs := runtime.GOMAXPROCS(0) numCPU := runtime.NumCPU() if maxProcs < numCPU { return maxProcs } return numCPU } func ExampleScrape(url string, resultChan chan string) { //func ExampleScrape(url string) { doc, err := goquery.NewDocument("http://www.weather.com.cn/weather/" + url + ".shtml") if err != nil { log.Fatal(err) } defer func() { if err := recover(); err != nil { fmt.Println(err) } }() var listWeather [7][4]string var zsItemList [21]map[string]string doc.Find("#7d li").Each(func(i int, s *goquery.Selection) { var strWeather [4]string var zsItem = make(map[string]string) win1, _ := s.Find("p.win").First().Find("em span").First().Attr("title") win2, _ := s.Find("p.win").First().Find("em span").Last().Attr("title") temp1 := s.Find("p.tem.tem1").First().Text() temp2 := s.Find("p.tem.tem2").First().Text() weather := s.Find("p.wea").First().Text() strWeather[0] = temp2 + "~" + temp1 strWeather[0] = strings.Replace(strWeather[0], "\n", "", -1) strWeather[1] = weather if win1 == win2 { strWeather[2] = win1 } else { strWeather[2] = win1 + "转" + win2 } strWeather[3] = s.Find("p.wea").First().Text() listWeather[i] = strWeather // docIndex, errIndex := goquery.NewDocument("http://www.weather.com.cn/weather1d/" + url + ".shtml") if errIndex != nil { log.Fatal(errIndex) } indexcount := 0 docIndex.Find("div#zs0 li section.mask").Each(func(i int, s *goquery.Selection) { title, _ := s.Find("section.imgArea img").First().Attr("alt") content := s.Find("section.detail aside").First() index, _ := content.Find("b").First().Html() desc := content.Text() if len(strings.TrimSpace(index)) == 0 || len(strings.TrimSpace(desc)) == 0 { zsItem[title] = "" } else { zsItem[title] = index + "|" + desc } //fmt.Println(strconv.Itoa(i) + "|" + title + "|" + index + "|" + desc) zsItemList[i] = zsItem indexcount = i }) docIndex.Find("div#zs1 li section.mask").Each(func(i int, s *goquery.Selection) { title, _ := s.Find("section.imgArea a").First().Attr("title") content := s.Find("section.detail aside[data-dn=today]").First() index, _ := content.Find("b").First().Html() desc := content.Text() if len(strings.TrimSpace(index)) == 0 || len(strings.TrimSpace(desc)) == 0 { zsItem[title] = "" } else { zsItem[title] = index + "|" + desc } //fmt.Println(strconv.Itoa(i) + "|" + title + "|" + index + "|" + desc) zsItemList[i+indexcount] = zsItem }) //fmt.Println(url + "|" + listWeather[0][0] + "|" + listWeather[0][1] + "|" + listWeather[0][2] + "|" + listWeather[0][3] + "|" + zsItemList[1]["穿衣指数"]) }) resultChan <- url + "|" + listWeather[0][0] + "|" + listWeather[0][1] + "|" + listWeather[0][2] + "|" + listWeather[0][3] + "|" + zsItemList[1]["穿衣指数"] } func convertMaptoString(items map[string]string) string { result := "" for _, elem := range items { result += elem } return result } func main() { var urls = [...]string{ "101010100", "101010200", "101010300", "101010400", "101010500", "101010600", "101010700", "101010800", "101010900", "101340406"} // t_start := time.Now() resultChan := make(chan string) for _, url := range urls { go ExampleScrape(url, resultChan) } go func() { for { select { case msg1 := <-resultChan: fmt.Println(msg1) case <-time.After(time.Second * 5): fmt.Println("timeout check again...") } } }() //ExampleScrape(urls[0]) var input string fmt.Scanln(&input) // t_end := time.Now() // fmt.Println(t_end.Sub(t_start)) } ```