string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%8C%E5%BB%BA%E6%A1%88%E4%BE%8B%E7%8F%AD%E7%9C%8B%E6%9C%89%E7%94%A8%E5%98%9B => Received HTTP code 403 from proxy after CONNECT"
二建案例班看有用嘛
