let audioChunks = []; let mediaRecorder; let stream; if (event.key === '1') { console.log('数字1键被按下了！'); navigator.mediaDevices.getUserMedia({ audio: true }).then(s => { stream = s; mediaRecorder = new MediaRecorder(stream); mediaRecorder.addEventListener('dataavailable', event => { audioChunks.push(event.data); }); mediaRecorder.start(); }) } console.log('audioChunks',audioChunks) if (event.key === '2') { console.log('数字2键被按下了！',audioChunks); mediaRecorder.stop(); stream.getTracks().forEach(track => track.stop()); const audioBlob = new Blob(audioChunks, { type: 'audio/wav' }); const reader = new FileReader(); reader.readAsDataURL(audioBlob); reader.onloadend = () => { const dataURI = reader.result; emitUIInteraction(JSON.stringify(dataURI)); console.log('dataURI', dataURI); // downloadAudio(dataURI) }; }这段代码，怎么改

如果您想在数字2键按下之前查看audioChunks数组中的数据，可以将console.log('audioChunks',audioChunks)移动到数字1键按下的回调函数中，如下所示：

let audioChunks = [];
let mediaRecorder;
let stream;

if (event.key === '1') {
    console.log('数字1键被按下了！');
    navigator.mediaDevices.getUserMedia({ audio: true }).then(s => {
        stream = s;
        mediaRecorder = new MediaRecorder(stream);
        mediaRecorder.addEventListener('dataavailable', event => {
            audioChunks.push(event.data);
        });
        mediaRecorder.start();
    });
    console.log('audioChunks',audioChunks); // 将console.log移动到此处
}

if (event.key === '2') {
    console.log('数字2键被按下了！',audioChunks);
    mediaRecorder.stop();
    stream.getTracks().forEach(track => track.stop());
    const audioBlob = new Blob(audioChunks, { type: 'audio/wav' });
    const reader = new FileReader();
    reader.readAsDataURL(audioBlob);
    reader.onloadend = () => {
        const dataURI = reader.result;
        emitUIInteraction(JSON.stringify(dataURI));
        console.log('dataURI', dataURI);
        // downloadAudio(dataURI)
    };
}

这将确保您只在audioChunks数组中有数据时才会打印它。