package main
 import(
    "fmt"
    "log"
    "net/http"
    "os"
)
 func main(){
    resp,err:=http.Get("http://www.baidu.com")
    if err!=nil{
        //handleerror
        fmt.Println(err)
        log.Fatal(err)
    }
    defer resp.Body.Close()
    if resp.StatusCode==http.StatusOK{
        fmt.Println(resp.StatusCode)
    }
    buf:=make([]byte,1024)
    //createfile
    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]))
    }
}