string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B7%B4%E9%BB%8E%E5%92%8C%E4%BC%9A%E4%B8%AD%E5%9B%BD%E4%B8%8D%E7%AD%BE%E5%AD%97%E7%9A%84%E5%90%8E%E6%9E%9C => Received HTTP code 403 from proxy after CONNECT"
巴黎和会中国不签字的后果
