一个页面内多个视频禁止同时播放

js写法

var au=document.getElementsByTagName("video");

        for(var i=0;i<au.length;i++){

          au[i].addEventListener("playing", function(){

          var this1=this;

          this.play();

          for(var b=0;b<au.length;b++){

              var this2=au[b];

              if(this1!==this2){

                this2.pause();

              }

          }

        });

      }

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jq写法

 $("video").on("play" , function () {

        $("video").not($(this)).trigger("pause")

  })