<!DOCTYPE html><html><head><meta charset="UTF-8"><title>倒計(jì)時(shí)時(shí)差效果</title></head><body><div id="content"><div id="show"></div></div><script type="text/javascript">window.onload=function(){showTime();}//函數(shù)區(qū)域//分、秒補(bǔ)位函數(shù)function checkTime(i){if(i<10){i="0"+i;}return i;}//時(shí)間展示函數(shù)function showTime(){? ? var mydate=new Date();? ? var year=mydate.getFullYear();? ? var month= mydate.getMonth()+1;? ? var dateArray=['星期天','星期一','星期二','星期三','星期四','星期五','星期六'];? ? var xingqi=mydate.getDay();? ? var day=mydate.getDate();? ? var h=mydate.getHours();? ? var m=mydate.getMinutes();? ? var s=mydate.getSeconds();? ? var m=checkTime(m);? ? var s=checkTime(s);? ? var show=document.getElementById('show');? ? show.innerHTML=year+'年'+month+'月'+day+'日'+dateArray[xingqi]+h+':'+m+':'+s;? ? setTimeout(showTime,1000);}</script></body></html>
下滑線處補(bǔ)位函數(shù)如果用if else, 分、秒在0-10內(nèi)會(huì)輸出undefined;萌新問下if和if else的區(qū)別
Enddddddddddd
2017-10-23 21:06:38
