string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%80%8C%E4%B8%94%E5%8F%AF%E4%BB%A5%E9%94%BB%E7%82%BC%E8%BA%AB%E4%BD%93%E8%8B%B1%E8%AF%AD => Failed to connect to 101.89.117.144 port 38208: Connection refused"
而且可以锻炼身体英语
