使用HTML5的Speech Synthesis API能简单实现语音合成，并进行播报，实现代码如下：
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>网页实现文字转语音朗读功能</title></head><body><button onclick="play()">朗读</button><script>var utterThis = new SpeechSynthesisUtterance();utterThis.text = "hello word";utterThis.volume = 1; // 声音的音量 范围是0到1utterThis.rate = 0.7; //语速，数值，默认值是1，范围是0.1到10mutterThisg.pitch = 0; // 音高，数值，范围从0（最小）到2（最大）。默认值为1function play() {speechSynthesis.speak(utterThis);}</script></body></html>
