string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B2%A1%E6%9C%89%E7%BB%8F%E9%AA%8C%E5%BC%80%E4%BB%80%E4%B9%88%E5%BA%97%E6%9C%80%E5%90%88%E9%80%82 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
没有经验开什么店最合适
