string(244) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=excel%E9%94%99%E8%AF%AF%E4%BF%9D%E5%AD%98%E6%80%8E%E4%B9%88%E8%BF%98%E5%8E%9F => Failed to connect to 101.91.112.32 port 38221: Connection refused"
excel错误保存怎么还原
