二个文本框T1,T2,T1用来设定时间的,T2用来显示时间。二个按钮C1,C2,C1用来启动计时,C2停止并可以重新设置时间,还要画一个计时器用于计时用 Private Sub C1_Click() If T1.Text = "" Then MsgBox "请重新输入", vbCritical Else T1.Enabled = False Tr1.Enabled = True T2.Text = 0 End If End SubPrivate Sub C2_Click() T1.Enabled = True Tr1.Enabled = False T2.Text = 0 End SubPrivate Sub Tr1_Timer() If T2.Text = T1.Text Then Beep Tr1.Enabled = False MsgBox "时间到", vbOKOnly T2.Text = 0 Else: T2.Text = T2.Text + 1 End If End Sub
Private Sub C1_Click()
If T1.Text = "" Then
MsgBox "请重新输入", vbCritical
Else
T1.Enabled = False
Tr1.Enabled = True
T2.Text = 0
End If
End SubPrivate Sub C2_Click()
T1.Enabled = True
Tr1.Enabled = False
T2.Text = 0
End SubPrivate Sub Tr1_Timer()
If T2.Text = T1.Text Then
Beep
Tr1.Enabled = False
MsgBox "时间到", vbOKOnly
T2.Text = 0
Else: T2.Text = T2.Text + 1
End If
End Sub