string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A1%A8%E7%A4%BA%E6%94%B9%E5%8F%98%E8%87%AA%E5%B7%B1%E7%9A%84%E5%8F%A5%E5%AD%90 => Received HTTP code 403 from proxy after CONNECT"
表示改变自己的句子
