VB编程:IsNumeric判断闰年
运行效果:
运行代码:
方法一:
- Private Sub Command1_Click()
- Dim myYear As Boolean
- If IsNumeric(Text1.Text) Then
- If Text1.Text Mod 400 = 0 Then
- myYear = True
- ElseIf Text1.Text Mod 4 = 0 And Text1.Text Mod 100 <> 0 Then
- myYear = True
- Else
- myYear = False
- End If
- If myYear = True Then
- Picture1.Print Text1.Text & "是闰年!"
- Else
- Picture1.Print Text1.Text & "是平年!"
- End If
- Else
- Picture1.Print Text1.Text & "不是数字"
- End If
- End Sub
方法二:
- Public Function LeapYear(ByVal yea As Integer) As Boolean '闰年函数
- If (yea Mod 4) = 0 Then
- LeapYear = (yea Mod 100 > 0) Or (yea Mod 400 = 0)
- End If
- End Function
学习总结:
通用的步骤,可以使用函数,方便以后调用。