string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%8B%E5%8F%8B%E7%BD%91%E4%B8%BA%E4%BB%80%E4%B9%88%E7%A6%81%E6%AD%A2%E7%99%BB%E9%99%86 => Received HTTP code 403 from proxy after CONNECT"
朋友网为什么禁止登陆
