Javascript，函数无法使用变量

Question

I made an phonegap application that plays an sound when the user clicks on the button: 我制作了一个phonegap应用程序，该应用程序在用户单击按钮时播放声音：

 <button onclick="playAudio('test.mp3')">Play Some Audio</button>

But i want that the sound stops when the user makes an doubleclick, somehow my code dont works! 但是我希望当用户双击时声音停止，以某种方式我的代码不起作用！ Im an beginner in javascript, and think the i didnt put the variable = media in the right position. 我是javascript的初学者，并认为我没有将变量= media放在正确的位置。 Here is my full code: 这是我的完整代码：

<body>
     <h1>Playing Audio</h1>

    <button onclick="playAudio('test.mp3')">Play Some Audio</button>
    <script type="text/javascript" src="cordova-2.4.0.js"></script>
    <script type="text/javascript" src="js/index.js"></script>
    <script type="text/javascript">
        app.initialize();
        var playing = false;
        var media = null;


        function playAudio(src) {
            if (!playing) {
                if (device.platform == 'Android') {
                    src = '/android_asset/' + src;
                }

                var media = new Media(src);
                media.play();
                playing = true;
            } else {
                media.stop();
                playing = false;
            }
        }
    </script>
</body>

Answer 1

Change the following line 更改以下行

var media = new Media(src);

to 至

media = new Media(src);

Answer 2

Now i found the problem, you cannot use 现在我发现了问题，您不能使用

 media = new Media (src)

instead i had tu use 相反，我有涂用

 my_Media = new Media (src)

There is an interreference with the word media! 媒体一词引起了共鸣！ But what @Alexandre said was absolutley correct, and that brougt me to the final result! 但是@Alexandre说的是绝对正确的，这使我对最终结果感到震惊！ Thanks 谢谢

Javascript，函数无法使用变量

问题描述

2 个解决方案

解决方案1
2 2013-05-17 18:13:20

解决方案2
2 已采纳 2013-05-18 05:52:21

Javascript，函数无法使用变量

问题描述

2 个解决方案

解决方案1 2 2013-05-17 18:13:20

解决方案2 2 已采纳 2013-05-18 05:52:21

解决方案1
2 2013-05-17 18:13:20

解决方案2
2 已采纳 2013-05-18 05:52:21