主题：excel

Dim cj2 As WinForm.DateTimePicker = e.Form.Controls("DateTimePicker2")
Dim y,m,d As Integer
Dim dt2 As Date
dt2 = vars("gg")
Dim dt1 As Date = #1/01/0001#
DateYMD(dt1,dt2, y, m, d)
y=y+1
m=m+1
d=d+1
Dim f1 As String = "E:\财务数据汇总\报税\集资款.xls"
Dim f2 As String = "E:\财务数据汇总\报税\利息抵.xls"
Dim Book1 As New XLS.Book(f1)
Dim Book2 As New XLS.Book(f2)
Dim Sheet1 As XLS.Sheet = Book1.Sheets("单位集资发放利息")
Dim Sheet2 As XLS.Sheet = Book2.Sheets("利息抵")
If Sheet1(1,6).Value = vars("cc") Then
    'For n As Integer = 4 To 19
    Sheet2(7,3).Value = Sheet1(4,3).Value
    Sheet2(6,4).Value = Sheet1(4,5).Value
    Dim Proc As New Process
    Proc.File = (f2)
    Proc.Start()  
    'Next
Else
    MessageBox.Show("导入报表日期不符!")
End If

为什么不能赋值？