js 計時器小程序的實現

$(function () {
        setInterval(setTime,1000) //定時函數
	})
	function setTime() {
        var playTime = 1547720552000; //開始時間
		var data =parseInt((new Date().getTime()-playTime)/1000) ;//秒
        var h = parseInt(data/3600);
        var m = parseInt((data-h*3600)/60);
        var s = parseInt((data-h*3600)%60);
        var timeH ;
        var timeM ;
        var timeS ;
        if (h < 10){
            timeH =  "0" +  h ;
        }else {
            timeH =  h
        }
        if (m < 10){
            timeM =  ":0" + m;
        }else {
            timeM =  ":" +  m;
        }
        if (s < 10){
            timeS =  ":0" + s;
        }else {
            timeS =  ":" +  s;
        }
        console.log(timeH + timeM + timeS);
       // setTimeout(setTime(),20000);
    }
複製代碼