一般程式寫的爬蟲程式都會自帶請求頭，不知不覺就被網站拒絕了，請求之前可以看看自己的請求頭是什麼，確保不被禁

如果網站太慢打不開，想在本地搭建測試環境，可以在docker環境下啟動：

$ docker run -p 80:80 kennethreitz/httpbin

{
    args: { },
    headers: {
    Accept: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
    Accept-Encoding: "gzip, deflate, br"
 
,
    Accept-Language: "zh-CN,zh;q=0.9,en;q=0.8",
    Connection: "close",
    Cookie: "_gauges_unique_day=1; _gauges_unique_month=1; _gauges_unique_year=1; _gauges_unique=1",
    Host: "httpbin.org",
    Upgrade-Insecure-Requests: "1",
    User-Agent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36"
 

    },
    origin: "xxx.xxx.xx.xx",
    url: "https://httpbin.org/get"
}