string(243) "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%E4%BA%86%E5%A6%82%E4%BD%95%E6%81%A2%E5%A4%8D => Failed to connect to 14.18.117.71 port 38220: Connection refused"
excel保存错了如何恢复
