解决方法
我想
Excel.WorksheetFunction.CountA不仅可以使用工作表,还可以使用任何Range参数：
Use CountA to count the number of cells that contain data in a range
or array.A value is any type of information,including error values and empty
text (“”). A value does not include empty cells.If an argument is an array or reference,only values in that array or reference are used. Empty cells and text values in the array or reference are ignored.
