const synth = window.speechSynthesis;

const speak = (text) => {
    if (text !== "") {
// 获得说话文本
const speakText = new SpeechSynthesisUtterance(text);


// 验证是否在说话
if (synth.speaking) {
    console.error("正在说话中...");
    return;
}

// 说话结束触发
speakText.onend = e => {
    console.log("说话结束");
};

// 发生阻止说出话语的错误就触发
speakText.onerror = e => {
    console.error("抱歉出错了");
};

speakText.lang = "zh-CN";
// 设置音速和音调
speakText.rate = 0.8;
speakText.pitch = 1;

// speak
synth.speak(speakText);
}
};