package main

import (
   "fmt"
   "io/ioutil"
   "net/http"
   "time"
)

func main()  {
   
   length := 10
   t1 := time.Now().Second()
   ch := make(chan []byte,length)
   //var w sync.WaitGroup
   // 开启一个并发匿名函数
   for i:=0;i<length;i++ {
      go func() {
         Res, _ :=http.Get("https://www.sina.com.cn/api/hotword.json")
         content, _ := ioutil.ReadAll(Res.Body)
         Res.Body.Close()
         ch<-content
      }()
   }
   
   for j:=0;j<length;j++{
      fileName := fmt.Sprintf("./ach-sina-%d",j)
      content := <-ch
      fmt.Println(content)
      ioutil.WriteFile(fileName,content,1)
   }
   t2 := time.Now().Second()
   fmt.Printf("%d次请求，总共耗时%ds\n", length,t2-t1)
   fmt.Println("all done")
}