string(267) "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%E7%9A%84%E4%B8%BB%E8%A6%81%E5%86%85%E5%AE%B9%E6%A6%82%E6%8B%AC => Failed to connect to 101.89.159.206 port 38100: Connection refused"
巴黎和会的主要内容概括
