JS如何获取填报后的单元格的值
https://help.fanruan.com/finereport10.0/doc-view-4008.html 参考
JS获取扩展控件的所有值 https://help.fanruan.com/finereport/doc-view-2100.html
=JS获取填报单元格值或给单元格赋值 https://help.fanruan.com/finereport/doc-view-1207.html