Question

请查看以下代码

function longSentenceSpeak(text)
{
    var string = text.trim().split(" ").join("+");
    var finalString = string.replace(";",",")
    var url = "http://www.translate.google.com/translate_tts?tl=en&q="+finalString;
    var url2 = "http://www.translate.google.com/translate_tts?tl=sp&q="+finalString;

    var audio = document.getElementById('audio');

    var source = document.getElementById('source');
    source.src=url;

    audio.load(); //call this to just preload the audio without playing
    audio.play(); //call this to play the song right away
}

以下是我的HTML

TODO提供标题

    <script src="scripts/TTS.js"></script>
    <script>
       function longText()
       {
           longSentenceSpeak("hello world ");
       }
    </script>
</head>
<body>
    <audio id="audio">
        <source id="source" src="" type="audio/mp3" />
    </audio>

    <div><button onclick="longText()">Click me</button></div>
</body>

然而，这有时会产生以下错误。

Failed to load resource: the server responded with a status of 404 (Not Found) (12:49:15:455 | error, network)
  at http://www.translate.google.com/translate_tts?tl=en&q=hello

我想要做的是，如果发生此错误，我想在var url2中使用var url代替function longSentenceSpeak(text)。我怎么能这样做？

更新

我尝试了以下，没有好的

function longSentenceSpeak(text)
        {
            var string = text.trim().split(" ").join("+");
            var finalString = string.replace(";",",")
            var url = "http://www.translate.google.com/translate_tts?tl=en&q="+finalString;
            var url2 = "http://www.translate.google.com/translate_tts?tl=sp&q="+finalString;

            var audio = document.getElementById('audio');

            var source = document.getElementById('source');
            source.src=url;

            audio.load(); //call this to just preload the audio without playing
            audio.play(); //call this to play the song right away

        audio.onerror = function()
        {
            var url2 = "http://translate.google.com/translate_tts?tl=en&q="+text;

            var audio = document.getElementById('audio');

            var source = document.getElementById('source');
            source.src = url2;

            audio.load(); //call this to just preload the audio without playing
            audio.play(); //call this to play the song right away
        };
        }

Javascript`onError`无法正常运行

0 个答案: