string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E6%9F%A5%E7%9C%8B%E7%94%B5%E8%84%91%E4%B8%BB%E6%9C%BA%E7%9A%84ip%E5%9C%B0%E5%9D%80 => Received HTTP code 403 from proxy after CONNECT"
如何查看电脑主机的ip地址
