anchor.diff:          //ÿһ
           setInterval(setTime, 1000);
   
  +        //ʱʾ
           function setTime() {
               if ($("#time").css("display") == "none") {
                   $("#time").css("display", "block");
  
positive.code:     <!-- music player -->
      <div class="container">
          <div align="center">
              <div class="sm2-bar-ui" style="z-index:1031;top:-35px;">
  
                  <!-- ֲſ -->
                  <div class="bd sm2-main-controls">
  
negative.code: </head>
  <body>
  
      <!--  -->
      <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
          <div class="container-fluid">
  
  