string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E8%84%91%E8%A1%A8%E6%A0%BC%E7%9A%84%E5%88%B6%E4%BD%9C%E6%AD%A5%E9%AA%A4 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
电脑表格的制作步骤
