为什么当我进入VBA Excel的操作时，VBA删除了操作符？

Question

我会写类似：

Dim Counter As Integer 
Dim a As Integer 
Counter = 0 
a = 1 
Counter-a 

但是，那么VBA其追加到此：

Dim Counter As Integer 
Dim a As Integer 
Counter = 0 
a = 1 
Counter a '<---------------This change is what I am confused about 

这是迄今为止我全码：

Private Sub SpinButtonM_SpinDown() 
Dim Counter As Integer 
Dim a As Integer 
a = 1 
Counter a 
UserForm2.Month.Caption = Counter 
End Sub 

Answer 1

你有递减像这样：

Counter = Counter - a 

Answer 2

如果要从变量Counter中减去变量a，则需要将该减法的结果存储在某处。所以，你可能想引入另一个变量一样

Dim result as Integer 
... 
result = Counter - a 
msgbox(result) 

或者，也许你想a降低Counter变量，那么你就需要

Counter = Counter - a