string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%88%91%E5%9B%BD%E5%8E%86%E5%8F%B2%E6%96%87%E5%8C%96%E5%90%8D%E5%9F%8E%E6%9C%89%E5%A4%9A%E5%B0%91%E4%B8%AA%E5%9F%8E%E5%B8%82 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
我国历史文化名城有多少个城市
