求助有关select case 语句问题
大侠帮我看看这段代码怎么就运行不了??输入"+'和两个输入数,点击按钮后,text4.text就是出不来东西!谢谢!
dim a,b,c,d
Private Sub Command1_Click()
a = Val(Text1.Text)
b = Text2.Text
c = Val(Text3.Text)
Select Case b
Case "+"
d = a + c
Case "*"
d = a * c
End Select
Text4.Text = d
End Sub