中科新闻网黄翅鱼的做法窍门:vb，关于我做的这个简单的蓄力槽的东西
来源：百度文库 编辑：中科新闻网 时间：2024/05/11 18:39:40
Dim x As Integer
Private Sub form_KeyDown(KeyCode As Integer, Shift As Integer)
x = 1
If KeyCode = vbKeySpace Then
Timer1.Enabled = True
End If
End Sub
Private Sub Timer1_Timer()
x = x + 10
Picture1.Line (0, 0)-(x, Picture1.Height), , B
End Sub
可是总是按空格蓄力到一定距离的时候就莫名其妙地停止了，松手后又继续
很纳闷。。。高手帮我看看代码有什么问题没
谢谢!
Dim isDown As Boolean
Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer)
If KeyCode = 32 Then isDown = True
End Sub
Private Sub Form_KeyUp(KeyCode As Integer, Shift As Integer)
isDown = False
End Sub
Private Sub Timer1_Timer()
Static x As Integer
If isDown Then
x = x + 10
Picture1.Line (0, 0)-(x, Picture1.Height), , B
Else
x = 0
End If
End Sub
楼上的程序可以运行。但要加入下面的代码：
Private Sub Form_Load()
Form1.KeyPreview = True
Timer1.Interval = 1
End Sub
另外，在Timer1_Timer()中加入一句Picture1.Cls，在反复演示的效果要更好些。如下：
Private Sub Timer1_Timer()
Static x As Integer
If isDown Then
x = x + 10
Picture1.Line (0, 0)-(x, Picture1.Height), , B
Else
x = 0
Picture1.Cls '加在这里
End If
End Sub