string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%91%E8%86%9C%E6%80%8E%E4%B9%88%E7%94%A8%E6%89%8D%E6%98%AF%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%96%B9%E6%B3%95 => Received HTTP code 403 from proxy after CONNECT"
发膜怎么用才是正确的方法
