p>在这种情况下，我不认为命名参数有效。所以你必须这样做：

I don't think that named parameters work in this case. So you'd have to do something like:

xlwb = xlApp.Workbooks.Open（filename，False，True，None，password）

xlwb = xlApp.Workbooks.Open(filename, False, True, None, password)

请参阅 http://msdn.microsoft。 com / en-us / library / office / ff194819.aspx 有关Workbooks.Open方法的详细信息。

See http://msdn.microsoft.com/en-us/library/office/ff194819.aspx for details on the Workbooks.Open method.