延时

var timeoutHandle = null;
function delayPlay(id, code, videoName) {
    // setTimeout("javascript:closeMp();mp = new OVT_media();jQuery('#dataList .item').removeClass('yellowColor');jQuery('#itemBg" + id + "').addClass('yellowColor');" +
    //     "cur_code='" + code + "';codeArr=[];codeArr.push('" + code + "');getPlayUrl();" +
    //     "jQuery('#video-box').hide();upgdlog('" + videoName + "','" + code + "');yellowId='itemBg" + id + "'", 1000);
    if (firstIn) {
        playFastVideo(id, code, videoName);
        firstIn = false;
    } else {
        clearTimeout(timeoutHandle);
				//调用延时,参数写外面
        timeoutHandle = setTimeout(playFastVideo, 1000, id, code, videoName);
    }
}
function playFastVideo(id, code, videoName) {

closeMp();

mp = new OVT_media();

jQuery('#dataList .item').removeClass('yellowColor');

jQuery('#itemBg' + id).addClass('yellowColor');

cur_code = code;

codeArr = [];

codeArr.push(code);

getPlayUrl();

jQuery('#video-box').hide();

upgdlog(videoName, code);

yellowId = 'itemBg' + id

}

https://www.jb51.cc/html5/168480.html
var timer = setInterval(function() {

var current = str.substr(progress, 1);

if (current == '<') {

progress = str.indexOf('>', progress) + 1;

} else {

progress++;

}

$ele.innerHTML = str.substring(0, progress) + (progress & 1 ? '_' : '');

if (progress >= str.length) {

clearInterval(timer);

}

}, 75);