现将代码贴出，共勉！
HTML部分：=====================================================
<html>
<head>
<script language="VBscript">
<!--
function M_b()
set M_e=Scene.Engine
M_e.Nodes("MyScript").Fields("nodestring")="Shape {geometry Box{}}"
M_e.Nodes("MyScript").Fields("kk")=TRUE
end function
function M_s()
set M_e=Scene.Engine
M_e.Nodes("MyScript").Fields("nodestring")="Shape {geometry Extrusion{}}"
M_e.Nodes("MyScript").Fields("kk")=TRUE
end function
!-->
</script>
<script language="javascript">
function bd() {
var oo = Scene.Engine;
oo.Nodes("MyScript").Fields("nodestring")="Shape {geometry Box{}}";
oo.Nodes("MyScript").Fields("kk")=true;
}
function bx(){
var oo = Scene.Engine;
oo.Nodes("MyScript").Fields("nodestring")="Shape {geometry Extrusion{}}";
oo.Nodes("MyScript").Fields("kk")=true;
}
</script>
</head>
<body>
<OBJECT id="Scene"
CLASSID="CLSID:86A88967-7A20-11d2-8EDA-00600818EDB1" WIDTH="300" HEIGHT="300">
<PARAM NAME="Scene" value="box.wrl">
</OBJECT>
<input type=button value="变大" onClick="bd()">
<input type=button value="变小" onClick="bx()"><br>
</body>
</html>
box.wrl部分===========================================================
#VRML V2.0 utf8
DirectionalLight {
ambientIntensity .5
intensity .2
}
NavigationInfo {
type "EXAMINE"
}
DEF Transfm Transform {
translation -4 0 -4
children [
Shape {
geometry Box{}
}]
}
DEF MyScript Script {
directOutput TRUE
eventIn SFBool kk
field SFNode node USE Transfm
field SFString nodestring ""
url "VRMLSCRIPT:
function kk(){
if(nodestring=='')
{
nodestring='Shape {'
'geomet
