检测浏览器是否支持flash

var i_flash = false;
var v_flash = false;
// Netscape
if (navigator.plugins) {
    for (var i = 0; i < navigator.plugins.length; i++) {
        if (navigator.plugins[i].name.toLowerCase().indexOf("shockwave flash") >= 0) {
            console.log(navigator.plugins[i].name.toLowerCase());
            i_flash = true;
            v_flash = navigator.plugins[i].description.substring(navigator.plugins[i].description.toLowerCase().lastIndexOf("flash ") + 6, navigator.plugins[i].description.length);
        }
    }
}
if(!i_flash){
    if(confirm('是否下载控件')){
        window.open('https://get2.adobe.com/cn/flashplayer');
    }
}

 

 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) alert("您安装了flash,当前flash版本为: " + fls.v + ".x");
  else alert("您没有安装flash");