Public Class Form1
Dim b As Integer
Dim js As Integer
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Me.Button1.Text = "开始" Then
Dim a As Integer = MsgBox("游戏开始你准备好了吗", MsgBoxStyle.YesNo, "提示！")
If a = 6 Then
...
