Private Sub Command1_Click()
Dim a, b, result As Double
a = Text1.Text
b = Text2.Text
result = 0
If b <> [] Then
resul = a / b
Text3 = rexult
Else
MsgBox "除数不能为0！"
End If
End Sub
为啥他总是说外部名未定义 还把[]圈上

谢谢