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我想用手指在屏幕上滑动一个球。我得到了光标位置,但是当我滑动时,球没有跟随我的手指。此外,我有几个球。(暂时没有,但我已经计划好了)

我的代码:

C#

private void MouseMoving(object sender, MouseEventArgs e)
{
    if (sender.GetType() == typeof(Image))
    {                             
        System.Windows.Point cursorpos = e.GetPosition(null);
        Image realSender = (Image)sender;
        // MessageBox.Show(cursorpos.X.ToString());
        // MessageBox.Show(cursorpos.Y.ToString());
        Canvas.SetLeft(realSender, cursorpos.X);                   
        Canvas.SetTop(realSender, cursorpos.Y);
        Canvas.SetZIndex(realSender, idx++);
    }

}

XAML

<Image Name="image1" Stretch="Fill" Source="/bal.png" 
       MouseMove="MouseMoving" Grid.ColumnSpan="4" 
       Canvas.Left="337" Canvas.Top="239"/`>
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