string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E4%B8%93%E9%80%89%E9%94%99%E4%BA%86%E4%B8%93%E4%B8%9A%E6%80%8E%E6%A0%B7%E8%A1%A5%E6%95%91 => Received HTTP code 403 from proxy after CONNECT"
中专选错了专业怎样补救
