为什么设计窗体的时候,见下图,调试出来的窗体左下角的label没法显示时间。
代码如下。
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If DateTime.Now.Hour > 6 And DateTime.Now.Hour < 12 Then
Me.Text = "上午好"
ElseIf DateTime.Now.Hour > 12 And DateTime.Now.Hour < 18 Then
Me.Text = "下午好"
ElseIf DateTime.Now.Hour > 18 And DateTime.Now.Hour < 20 Then
Me.Text = "晚上好"
Else
Me.Text = "您好"
End If
Me.Width = 410
Me.Height = 300
Me.Text = "首页"
MessageBox.Show("欢迎使用学生档案信息系统")
End Sub
如果在if里按照书上介绍修改成,
If DateTime.Now.Hour > 6 And DateTime.Now.Hour < 12 Then
Me.Labe1.Text = "上午好"
ElseIf DateTime.Now.Hour > 12 And DateTime.Now.Hour < 18 Then
Me.Labe1.Text = "下午好"
ElseIf DateTime.Now.Hour > 18 And DateTime.Now.Hour < 20 Then
Me.Labe1.Text = "晚上好"
Else
Me.Labe1.Text = "您好"
则是错误的。该怎么修改。