代码如下:

function flashChecker() { var hasFlash = 0;　　　　 //是否安装了flash var flashVersion = 0;　　 //flash版本 if(document.all) { var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash'); if(swf) { hasFlash = 1; VSwf = swf.GetVariable("$version"); flashVersion = parseInt(VSwf.split(" ")[1].split(",")[0]); } } else { if(navigator.plugins && navigator.plugins.length > 0) { var swf = navigator.plugins["Shockwave Flash"]; if(swf) { hasFlash = 1; var words = swf.description.split(" "); for(var i = 0; i < words.length; ++i) { if(isNaN(parseInt(words[i]))) continue; flashVersion = parseInt(words[i]); } } } } return { f: hasFlash, v: flashVersion }; }

var fls = flashChecker(); var s = ""; if(fls.f) document.write("您安装了flash,当前flash版本为: " + fls.v + ".x"); else document.write("您没有安装flash");