要用一个timer
图片在附件里
代码如下
Option Explicit
Dim a%, b%
'正确按钮代码
Private Sub Command1_Click()
b = b + 1
Timer1.Enabled = False
Label5.Caption = "恭喜你,答对了!"
End Sub
'错误按钮代码
Private Sub Command2_Click()
Label5.Caption = "对不起,答错了!"
Timer1.Enabled = False
End Sub
'放弃按钮代码
Private Sub Command3_Click()
Label5.Caption = "你放弃了此题"
Timer1.Enabled = False
End Sub
'开始按钮代码
Private Sub Command4_Click()
a = 61
Timer1.Enabled = True
End Sub
Private Sub Form_Load()
Timer1.Interval = 1000
Timer1.Enabled = False
End Sub
Private Sub Timer1_Timer()
a = a - 1
Label3.Caption = a
Label4.Caption = b
End Sub