<转: http://blog.ce.cn/html/28/106828-22471.html>

方法一：在网页中使用js，SetVariable设置flashobject中的变量，代码如：
// "HtmlToSwf"为网页中的flashobject ID
HtmlToSwf.SetVariable("_root.info_str","Happy Newyear");
方法二：路径参数，如test.swf?foo=happy2005
方法三：使用FlashVars，以下主要介绍FlashVars的用法。使用FlashVars后嵌入HTML的flashobject代码如下：

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="550" height="400" id="FlashVars" align="middle">
<param name="allowScriptAccess" value="sameDomain" />
<param name="movie" value="FlashVars.swf" />
<param name="FlashVars" value="foo=happy2005&program=flash&language=简体中文-中国" />
<param name="quality" value="high" />
<param name="bgcolor" value="#ffffff" />
<embed src="FlashVars.swf" quality="high" bgcolor="#ffffff" width="550" height="400" name="FlashVars" align="middle" allowScriptAccess="sameDomain" FlashVars="foo=happy2005&program=flash&language=简体中文-中国" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>

//通过上面的代码，在SWF(FlashVars.swf)中就可以直接获取foo、program、language变量数据。FlashVars.fla获取FlashVars参数的代码如下：
// 创建三个文本字段

_root.createTextField("foo_txt",1,0,0,16,16);
_root.createTextField("program_txt",2,0,32,16,16);
_root.createTextField("language_txt",3,0,64,16,16);
foo_txt.autoSize = true;
foo_txt.border = true;
program_txt.autoSize = true;
program_txt.border = true;
language_txt.autoSize = true;
language_txt.border = true;
// 获取FlashVars变量
foo_txt.text = "HTML中的foo参数："+foo;
program_txt.text = "HTML中的program参数："+program;
language_txt.text = "HTML中的language参数："+language;

三、两者的有效结合。
在HTML网页中使用js获取参数，然后将获取的参数作为FlashVars写入flashobject传递给swf。代码如下：
<script. language=javascript>
<!--
function writeflashobject(parastr) {
document.write("<object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" codebase=\"http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0\" width=\"550\" height=\"400\" id=\"FlashVars\" align=\"middle\"\>\n");
document.write("<param name=\"allowScriptAccess\" value=\"sameDomain\" /\>\n");
document.write("<param name=\"movie\" value=\"FlashVars.swf\" /\>\n");
document.write("<param name=\"FlashVars\" value=\""+ parastr +"\" /\>\n");
document.write("<param name=\"quality\" value=\"high\" /\>\n");
document.write("<param name=\"bgcolor\" value=\"#ffffff\" /\>\n");
document.write("<embed src=\"FlashVars.swf\" quality=\"high\" bgcolor=\"#ffffff\" width=\"550\" height=\"400\" name=\"FlashVars\" align=\"middle\" allowScriptAccess=\"sameDomain\" FlashVars=\""+ parastr +"\" type=\"application/x-shockwave-flash\" pluginspage=\"http://www.macromedia.com/go/getflashplayer\" /\>");
document.write("</object\>");

function getparastr() {
var hrefstr,pos,parastr,para,tempstr1;
hrefstr = window.location.href;
pos = hrefstr.indexOf("?")
parastr = hrefstr.substring(pos+1);
return parastr;
}
var parastr = getparastr();
writeflashobject(parastr);
//-->
</script>