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//如果是单个字符
(?is)(?!true|false).
//如果是多个字符
(?is)((?!true|false).)+
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'判断TextBox输入数字的正则
Dim regTemp As New Regex("^\d+")
‘ 为非数字时,提示Not is Numeric,否则is Numeric
If Not regTemp.IsMatch(TextBox1.Text) Then
MessageBox.Show("Not Is Numeric")
Else
MessageBox.Show("Is Numeric")
End If
End Sub