这段代码是加一网页中的，类似于网页中插入flash一样!
<object id="UnityObject" 
classid="clsid:444785F1-DE89-4295-863A-D46C3A781394" width="668"
height="401" >; 
codebase="http://webplayer.unity3d.com/download_webplayer-2.x/UnityWebPlayer.cab#version=2,0,0,0">
<param name="src" value="文件名.unity3d" />
<param name="backgroundcolor" value="000000" />

<param name="bordercolor" value="FFFFFF" />
<param name="textcolor" value="FFFFFF" />
<param name="logoimage" value="Logo名" />
<param name="progressbarimage" value="进度条名"  />
<param name="progressframeimage" value="进度条名2" />

</object>