string(289) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=excel%E4%BF%9D%E5%AD%98%E9%94%99%E8%AF%AF%E6%80%8E%E4%B9%88%E6%81%A2%E5%A4%8D%E5%8E%9F%E6%9D%A5%E7%9A%84%E6%95%B0%E6%8D%AE => Failed to connect to 101.91.112.32 port 38221: Connection refused"
excel保存错误怎么恢复原来的数据
