将下面的代码直接复制到新建的js文件中,导入到页面即可。
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) {
if(confirm("您的浏览器未安装Flash插件,现在安装?")) {
window.location.href = "http://get.adobe.com/cn/flashplayer/";
}
}