请各位大侠帮帮忙：Mapx中图元如何删除？？

<P>我在VB中实现了在已知坐标的情况下在地图上标明5个点的位置，代码如下：</P>
<P>Dim ggLayer As MapXLib.Layer<BR>Dim ggStyle As MapXLib.Style<BR>Dim gg As MapXLib.Feature</P>
<P>Set ggLayer = Map1.Layers.CreateLayer("ggLayer", , 1)<BR>Set Map1.Layers.AnimationLayer = ggLayer<BR>Set ggStyle = Map1.Layers(1).Style</P>
<P>With ggStyle<BR>    .SymbolFont.Name = "mapinfo transportation"<BR>    .SymbolCharacter = 97<BR>    .SymbolFont.Size = 25<BR>    .SymbolFontColor = miColorBlue<BR>End With</P>
<P>Dim f As MapXLib.Feature<BR>Dim p As New MapXLib.Point<BR>Dim x, y As Double</P>
<P>x = 104.123<BR>y = 28.211</P>
<P>For i = 1 To 5<BR>    p.Set x, y<BR>    Set gg = Map1.FeatureFactory.CreateSymbol(p, ggStyle)<BR>    Set f = Map1.Layers("ggLayer").AddFeature(gg)<BR>    x = x + 0.09<BR>    y = y + 0.05<BR>Next</P>
<P>现在的问题是，我应该如何将其中的一个点删除？比如说第三个点，坐标为X＝104.141，y＝28.229，应该如何处理？？</P>
<P>万望赐教，不胜感激！！</P>

Map1.Layers.DeleteFeature (i)