index.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
    <link rel="stylesheet" href="./static/css/reset.css">
    <title>app</title>
    <script type="text/javascript"> 
     // 扩展API是否准备好，如果没有则监听“plusready"事件
     if(window.plus){
         plusReady();
     }else{ 
         document.addEventListener( "plusready", plusReady, false );
     }
     // 扩展API准备完成后要执行的操作
     function plusReady(){
      var webview = plus.webview.currentWebview();
      plus.key.addEventListener('backbutton', function() {
          webview.canBack(function(e) {
              if(e.canBack) {
                  webview.back();
              } else {
                  webview.close(); //hide,quit
                  //plus.runtime.quit();
              }
          })
      });
     }
    </script> 
  </head>
  <body>
    <div id="app-box"></div>
    <!-- built files will be auto injected -->
  </body>
</html>