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Jquery countUp.js數字變換和滾動事件監聽的實現代碼片段，以下代碼為項目開發中的片段，實現方法思路僅供參考。

$(function () {
    exposure._init();

    var videoNum = 0 || count.video;
    var teacherNum = 0 || count.teacher;
    var userNum = 0 || count.user;
    var csrfToken = $('meta[name="csrf-token"]').attr("content");
    //數字變換和滾動事件
    var options = {
        useEasing: true,
        useGrouping: true,
        separator: '',
        decimal: '.',
        prefix: '',
        suffix: ''
    };
    var countUp1 = new CountUp("videoNumSpan", 0, videoNum, 0, 2.5, options);
    var countUp2 = new CountUp("teacherNumSpan", 0, teacherNum, 0, 2.5, options);
    var countUp3 = new CountUp("userNumspan", 0, userNum, 0, 2.5, options);

    $(window).scroll(function () {
        //數字開始滾動
        if ($(window).scrollTop() >= jQuery("#videoNumSpan").offset().top - jQuery(window).height()) {
            countUp1.start();
            countUp2.start();
            countUp3.start();
        }
    });    
 
});