package main

import (
    "fmt"
    "os"
    "log"
    "net/http"
)

func main(){
    resp,err := http.Get("http://www.baidu.com")
    if err != nil{
          //handle error   
          fmt.Println(err)
          log.Fatal(err)
    }
    if resp.StatusCode == http.StatusOK{
       fmt.Println(resp.StatusCode)
    }
    defer resp.Body.Close()
    
    buf := make([]byte,1024)
    //create file
    f,err1 := os.OpenFile("baidu.html",os.O_RDWR|os.O_CREATE|os.O_APPEND,os.ModePerm)
    if err1 != nil{
       panic(err1)
       return
    }
    defer f.Close()
    
    for {
       n,_ := resp.Body.Read(buf)
       if 0 == n {break}
       f.WriteString(string(buf[:n]))
    }
    
}