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我试图让我的代码与 responsiveVoice API 一起工作，但由于某种原因，它可以工作。它适用于“onclick”，但不适用于 if 语句。我究竟做错了什么？一切对我来说似乎都是正确的，但它不会起作用。代码如下所示。

function record() {
 var recognition = new webkitSpeechRecognition();
 recognition.lang = "en-GB";
 recognition.start();
 recognition.onresult = function(event) {
   let transcript = event.results[0][0].transcript;
var str = transcript;
if (str.includes('test')) {
  responsiveVoice.speak('This works!');
}
    document.getElementById('speechToText').value = event.results[0][0].transcript;
  }
}
<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <meta http-equiv="X-UA-Compatible" content="ie=edge">
   <title>Document</title>
</head>
<body>
   <label for="Speech Recognition">Speech Recognition</label>
   <input type="text" name="" id="speechToText" placeholder="Speak Something" disabled="disabled">
   <button onclick="record()">Record</button>
   <p id="output"></p>
   <script src='https://code.responsivevoice.org/responsivevoice.js'></script>
   <script src="script.js"></script>
</body>
</html>

谢谢你的帮助。对此，我真的非常感激。

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