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JS如何 實(shí)現(xiàn)倒計(jì)時(shí)功能 |
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使用JS實(shí)現(xiàn)倒計(jì)時(shí)功能 1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 2<HTML> 3<HEAD> 4<TITLE>倒計(jì)時(shí)</TITLE> 5<META NAME="Generator" CONTENT="EditPlus"> 6<META NAME="Author" CONTENT=""> 7<META NAME="Keywords" CONTENT=""> 8<META NAME="Description" CONTENT=""> 9</HEAD> 10 11<BODY> 12 <div id="TimeCounter" style="border:1px solid black;margin:1px;padding:2px;width:170px"></div> 13<SCRIPT language=javascript> 14<!-- 15function show_date_time(){ 16 window.setTimeout("show_date_time()", 1000); 17 target=new Date(2007,9,19,10,13,0); 18 today=new Date(); 19 timeold=(target.getTime()-today.getTime()); 20 21 sectimeold=timeold/1000 22 secondsold=Math.floor(sectimeold); 23 msPerDay=24*60*60*1000 24 e_daysold=timeold/msPerDay 25 daysold=Math.floor(e_daysold); 26 e_hrsold=(e_daysold-daysold)*24; 27 hrsold=Math.floor(e_hrsold); 28 e_minsold=(e_hrsold-hrsold)*60; 29 minsold=Math.floor((e_hrsold-hrsold)*60); 30 seconds=Math.floor((e_minsold-minsold)*60); 31 32 if (daysold<0) { 33 document.getElementById("TimeCounter").innerHTML="逾期,倒計(jì)時(shí)已經(jīng)失效"; 34} 35 else{ 36 if (daysold<10) {daysold="0"+daysold} 37 if (daysold<100) {daysold="0"+daysold} 38 if (hrsold<10) {hrsold="0"+hrsold} 39 if (minsold<10) {minsold="0"+minsold} 40 if (seconds<10) {seconds="0"+seconds} 41 if (daysold<3) { 42 document.getElementById("TimeCounter").innerHTML="<font color=red>"+daysold+"天"+hrsold+"小時(shí)"+minsold+"分"+seconds+"秒</font>"; 43} 44 else 45 document.getElementById("TimeCounter").innerHTML=daysold+"天"+hrsold+"小時(shí)"+minsold+"分"+seconds+"秒"; 46} 47} 48show_date_time(); 49//--> 50</SCRIPT></div> 51</BODY> 52</HTML>
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作者:未知 | 文章來源:自學(xué)編程網(wǎng) | 更新時(shí)間:2008-1-2 12:40:12
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