用Visual Basic设计一个程序,设a = 3, b=5, c=-1, d=7, 写出以下逻辑表达式的值 a - b / c - d Or c > d And Not c > 0 Or d < 0
时间: 2024-03-22 11:38:17 浏览: 55
好的,这是一个简单的 Visual Basic 程序,可以计算逻辑表达式 a - b / c - d Or c > d And Not c > 0 Or d < 0 的值:
```
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As Integer = 3
Dim b As Integer = 5
Dim c As Integer = -1
Dim d As Integer = 7
Dim result As Boolean = a - b / c - d Or c > d And Not c > 0 Or d < 0
MsgBox("结果为:" & result)
End Sub
```
在这个程序中,我们定义了四个整型变量 a、b、c、d,并分别赋值为 3、5、-1、7。然后,我们定义了一个 result 变量,用来储存逻辑表达式的计算结果。最后,我们通过 MsgBox 输出结果。当用户单击按钮时,程序会执行这些操作,然后弹出一个消息框,显示计算结果。
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