var ssu = {
    init: function () {
        var txt = window.getSelection().toString();
        ssu.speech(txt);
    },
    speech: function (txt) {
        if (!txt || txt.trim() == "") {
            txt = "未选择文字";
        }
        var ws = new window.SpeechSynthesisUtterance(txt);

<?php

// 设置跨域头
header('Access-Control-Allow-Origin:*');
header('Access-Control-Allow-Methods:PUT,POST,GET,DELETE,OPTIONS');
header('Access-Control-Allow-Headers:*');
header('Content-Type:application/json; charset=utf-8');

$file = isset($_FILES['file']) ? $_FILES['file']:null; //分段文件
$name = isset($_POST['name']) ? $_POST['name']:null; //文件名