我想要一个用VB6.0编的加减法程序,点了控件“加法”“减法”才可以在第三个文本框中出现结果的程序代码
来源:百度知道 编辑:UC知道 时间:2024/05/27 04:10:45
在窗体上放2个命令按纽,3个文本框,2个标签,如图,代码如下
Option Explicit: Dim a As Double, b As Double
Private Sub Command1_Click()
a = Val(Text1.Text)
b = Val(Text2.Text)
If Text1.Text <> "" And Text2.Text <> "" Then
Text3.Text = a + b
End If
Label1.Caption = "+"
Label2.Caption = "="
End Sub
Private Sub Command2_Click()
a = Val(Text1.Text)
b = Val(Text2.Text)
If Text1.Text <> "" And Text2.Text <> "" Then
Text3.Text = a - b
End If
Label1.Caption = "-"
Label2.Caption = "="
End Sub
Private Sub Form_Load