JavaScript学习笔记

(function() {
    'use strict';

    // Your code here...
    clearInterval(myTimer);
    function enterCourse() {
        funa();
        funb();
        func();
        fund();
    }

   function funa() {
            document.getElementsByClassName("pv-volumebtn pv-iconfont pv-icon-volumeon")[0].click();
   }


   function funb() {

          document.getElementsByClassName("pv-volumebtn pv-iconfont pv-icon-volumeno pv-icon-volumeon")[0].click();
   }


 

   function func() {

          document.getElementById("ccJumpOver").click();
   }



    function fund() {

        var a = document.getElementsByTagName("BUTTON");
            for (var i = 0; i < a.length; i++) {
                if(a[i].innerHTML=="跳过")
                    a[i].click();
            }
    }

    var myTimer = setInterval(enterCourse, 3000);

})();