string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%96%B9%E5%BC%8F%E6%96%B9%E6%B3%95%E6%96%B9%E9%9D%A2%E6%95%B4%E6%94%B9%E6%8E%AA%E6%96%BD => Received HTTP code 403 from proxy after CONNECT"
方式方法方面整改措施
