screenX/ Y,clientX/ Y和pageX/有Y什么区别？

同样对于iPad Safari,计算与桌面上的计算类似 - 或者由于视口有一些差异？

如果你能指出我的例子,那就太棒了.

我正在做一个Wpf应用程序,我用眼睛的形状创建一个控件,我在画布中放置一个椭圆(眼睛),我的目的是当鼠标的光标进入画布时,椭圆跟随鼠标的光标.你有什么建议如何执行这项任务？非常感谢您的关注.

干杯

编辑

我在Xaml中更新了我的代码:

<Window Height="480" Title="Window2" Width="640" x:Class="WpfApplication5.Window2"
   x:Name="Window" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Window.Resources>
    <Storyboard x:Key="OnLoaded1">
      <DoubleAnimationUsingKeyFrames Storyboard.TargetName="ctrCircle" 
        Storyboard.TargetProperty="(UIElement.RenderTransform).( TransformGroup.Children)[3].(TranslateTransform.X)">
        <EasingDoubleKeyFrame KeyTime="0:0:0.8" Value="1">
          <EasingDoubleKeyFrame.EasingFunction>
            <ExponentialEase EasingMode="EaseOut" />
          </EasingDoubleKeyFrame.EasingFunction>
      </EasingDoubleKeyFrame>
      </DoubleAnimationUsingKeyFrames>
      <DoubleAnimationUsingKeyFrames Storyboard.TargetName="ctrCircle" 
          Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)">
        <EasingDoubleKeyFrame KeyTime="0:0:0.8" Value="1">
        <EasingDoubleKeyFrame.EasingFunction>
            <ExponentialEase EasingMode="EaseOut" />
          </EasingDoubleKeyFrame.EasingFunction>
        </EasingDoubleKeyFrame>
      </DoubleAnimationUsingKeyFrames>
    </Storyboard>
    <Style TargetType="Ellipse">
      <Setter Property="RenderTransform">
        <Setter.Value>
          <ScaleTransform ScaleX="1" ScaleY="1"/>
        </Setter.Value>
      </Setter>
      <Setter Property="RenderTransformOrigin" Value="0.5,0.5"/>
    </Style>
  </Window.Resources>

  <Canvas MouseMove="mov" x:Name="LayoutRoot">
    <Border ackground="Black" B="" Canvas.Left="178" Canvas.Top="103" 
      CornerRadius="250" Height="255.5" Width="290" x:Name="border_eye">
      <Ellipse Fill="#FFFFC600" Height="12" HorizontalAlignment="Left" 
        Margin="0" RenderTransformOrigin="0.5,0.5" Stroke="{x:Null}" 
        VerticalAlignment="Center" Visibility="Visible" Width="12" …