string(262) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=excel%E5%A6%82%E4%BD%95%E5%B0%86%E6%A0%87%E9%A2%98%E5%90%88%E5%B9%B6%E5%8D%95%E5%85%83%E6%A0%BC => Failed to connect to 101.91.112.32 port 38162: Connection refused"
excel如何将标题合并单元格
