第二种：某某运动会
HTML代码:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 <!--倒计时Javascript begin--> < script language = "JavaScript" > <!-- function DigitalTime1() { var deadline= new Date("08/13/2007") //开幕倒计时 var symbol="8月13日" var now = new Date() var diff = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差 var leave = (deadline.getTime() - now.getTime()) + diff*60000 var day = Math.floor(leave / (1000 * 60 * 60 * 24)) var hour = Math.floor(leave / (1000*3600)) - (day * 24) var minute = Math.floor(leave / (1000*60)) - (day * 24 *60) - (hour * 60) var second = Math.floor(leave / (1000)) - (day * 24 *60*60) - (hour * 60 * 60) - (minute*60) var deadline_2= new Date("08/13/2004") //开幕后计时 var symbol_2="8月13日" var now_2 = new Date() var diff_2 = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差 var leave_2 = (now_2.getTime() - deadline_2.getTime()) + diff_2*60000 var day_2 = Math.floor(leave_2 / (1000 * 60 * 60 * 24)) var hour_2 = Math.floor(leave_2 / (1000*3600)) - (day_2 * 24) var minute_2 = Math.floor(leave_2 / (1000*60)) - (day_2 * 24 *60) - (hour_2 * 60) var second_2 = Math.floor(leave_2 / (1000)) - (day_2 * 24 *60*60) - (hour_2 * 60 * 60) - (minute_2*60) day=day+1; day_2=day_2+1; if (day>0) //还未开幕 { //LiveClock1.innerHTML = "现在"+symbol+"天" LiveClock1.innerHTML = "<font setTimeout("DigitalTime1()",1000) } if (day<0) //已经开幕 { //LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒" LiveClock1.innerHTML = "<font setTimeout("DigitalTime1()",1000) } if (day==0) //正在开幕 { //LiveClock1.innerHTML = "现在"+symbol+"天" LiveClock1.innerHTML = "<font setTimeout("DigitalTime1()",1000) } if (day<0 & day_2>19) //某某运动会结束 { //LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒" LiveClock1.innerHTML = "<font setTimeout("DigitalTime1()",1000) } } // --> </ script > <!--倒计时Javascript end--> < body onload = DigitalTime1 ()> < div id = LiveClock1 ></ div > </ body >第三种：小时倒计时
HTML代码:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 < SCRIPT LANGUAGE = "JavaScript" > <!-- var maxtime = 60*60 //一个小时，按秒计算，自己调整! function CountDown(){ if(maxtime>=0){ minutes = Math.floor(maxtime/60); seconds = Math.floor(maxtime`); msg = "距离结束还有"+minutes+"分"+seconds+"秒"; document.all["timer"].innerHTML=msg; if(maxtime == 5*60) alert('注意，还有5分钟!'); --maxtime; } else{ clearInterval(timer); alert("时间到，结束!"); } } timer = setInterval("CountDown()",1000); //--> </ SCRIPT > < div id = "timer" style = "color:red" ></ div >第四种：最简倒计时
HTML代码:
? 1 2 3 4 5 6 7 8 9 10 11 < Script Language = "JavaScript" > <!-- Begin var timedate= new Date("January 14,2006"); var times="研究生考试"; var now = new Date(); var date = timedate.getTime() - now.getTime(); var time = Math.floor(date / (1000 * 60 * 60 * 24)); if (time >= 0) ; document.write("<li><font color=#DEDBDE>现在离2006年"+times+"还有: <font color=#ffffff><b>"+time +"</b></font> 天</font></li>"); // End --> </ Script >第五种：最简倒计时二
HTML代码:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 < script language = "JavaScript" type = "text/javascript" > function djs(){ var urodz= new Date("11/12/2008"); var now = new Date(); var num var ile = urodz.getTime() - now.getTime(); var dni = Math.floor(ile / (1000 * 60 * 60 * 24)); if (dni >1) num=dni+1 else if (dni == 1) num=2 else if (dni == 0) num=1 else num=0 document.write(num) } </ script >距某某开幕式还有 [<script language="JavaScript" type="text/javascript">djs()</script>] 天
第六种：Javascript倒计时器 - 采用系统时间自校验 这次利用系统时间自校验倒计时, 无需手工调校使得倒计时更为精确, 代码及详细注释如下:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 < span id = "clock" >00:01:11:00</ span > < input id = "startB" type = "button" value = "start countdown!" onclick = "run()" > < input id = "endB" type = "button" value = "stop countdown!" onclick = "stop()" > < br > < input id = "diff" type = "text" > < input id = "next" type = "text" > < script language = "Javascript" > /* This notice must be untouched at all times. countdown.js v. 1.0 The latest version is available at http://blog.csdn.net/yjgx007 Copyright (c) 2004 Xinyi.Chen. All rights reserved. Created 7/30/2004 by Xinyi.Chen. Web: http://blog.csdn.net/yjgx007 E-Mail: chenxinyi1978@hotmail.com Last modified: 7/30/2004 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; See the GNU General Public License at http://www.gnu.org/copyleft/gpl.html for more details. */ var normalelapse = 100; var nextelapse = normalelapse; var counter; var startTime; var start = clock.innerText; var finish = "00:00:00:00"; var timer = null; // 开始运行 function run() { startB.disabled = true; endB.disabled = false; counter = 0; // 初始化开始时间 startTime = new Date().valueOf(); // nextelapse是定时时间, 初始时为100毫秒 // 注意setInterval函数: 时间逝去nextelapse(毫秒)后, onTimer才开始执行 timer = window.setInterval("onTimer()", nextelapse); } // 停止运行 function stop() { startB.disabled = false; endB.disabled = true; window.clearTimeout(timer); } window.onload = function() { endB.disabled = true; } // 倒计时函数 function onTimer() { if (start == finish) { window.clearInterval(timer); alert("time is up!"); return; } var hms = new String(start).split(":"); var ms = new Number(hms[3]); var s = new Number(hms[2]); var m = new Number(hms[1]); var h = new Number(hms[0]); ms -= 10; if (ms < 0 ) { ms = 90 ; s - = 1 ; if (s < 0) { s = 59 ; m - = 1 ; } if (m < 0) { m = 59 ; h - = 1 ; } } var ms = ms < 10 ? ("0" + ms) : ms; var ss = s < 10 ? ("0" + s) : s; var sm = m < 10 ? ("0" + m) : m; var sh = h < 10 ? ("0" + h) : h; start = sh + ":" + sm + ":" + ss + ":" + ms; clock.innerText = start ; // 清除上一次的定时器 window.clearInterval(timer); // 自校验系统时间得到时间差, 并由此得到下次所启动的新定时器的时间nextelapse counter++; var counterSecs = counter * 100; var elapseSecs = new Date().valueOf() - startTime; var diffSecs = counterSecs - elapseSecs; nextelapse = normalelapse + diffSecs; diff.value = counterSecs + "-" + elapseSecs + "=" + diffSecs; next.value = "nextelapse = " + nextelapse; if (nextelapse < 0) nextelapse = 0 ; // 启动新的定时器 timer = window .setInterval("onTimer()", nextelapse); } </script>附加一个完整的倒计时和时间 复制即可使用 运行的结果分别是：
天 小时 分 秒 2013年01月22日 15:44:23 星期二
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 < html > < head > < title >倒计时测试</ title > < script src = "http://event.wushuangol.com/ShopClothes/Scripts/jquery-1.4.4.min.js" type = "text/javascript" ></ script > < script language = "JavaScript" > $(document).ready(function () { <!-- 时间必须启动 --> clockon(); }); function clockon() { var now = new Date(); var year = now.getFullYear(); //getFullYear getYear var month = now.getMonth(); var date = now.getDate(); var day = now.getDay(); var hour = now.getHours(); var minu = now.getMinutes(); var sec = now.getSeconds(); var week; month = month + 1; if (month < 10 ) month = "0" + month; if (date < 10) date = "0" + date; if (hour < 10) hour = "0" + hour; if (minu < 10) minu = "0" + minu; if (sec < 10) sec = "0" + sec; var arr_week = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"); week = arr_week [day]; var time = "" ; time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu + ":" + sec + " " + week; $("#bgclock").html(time); var timer = setTimeout ("clockon()", 200); } <!-- 隐藏脚本从旧的浏览器 var DifferHour = -1 var DifferMinute = -1 var DifferSecond = -1 var Tday1 = new Date("Feb 11, 2013 00:00:00") //**倒计时时间-注意格式 var daysms = 24 * 60 * 60 * 1000 var hoursms = 60 * 60 * 1000 var Secondms = 60 * 1000 var microsecond = 1000 function clock() { var time = new Date() var hour = time.getHours() var minute = time.getMinutes() var second = time.getSeconds() var timevalue = ""+((hour > 12) ? hour-12:hour) timevalue +=((minute < 10) ? ":0":":")+minute timevalue +=((second < 10) ? ":0":":")+second timevalue +=((hour >12 ) ? " PM":" AM") var convertHour = DifferHour var convertMinute = DifferMinute var convertSecond = DifferSecond var Diffms = Tday1.getTime() - time.getTime() DifferHour = Math.floor(Diffms / daysms) Diffms -= DifferHour * daysms DifferMinute = Math.floor(Diffms / hoursms) Diffms -= DifferMinute * hoursms DifferSecond = Math.floor(Diffms / Secondms) Diffms -= DifferSecond * Secondms var dSecs = Math.floor(Diffms / microsecond) if(convertHour != DifferHour) document.formnow.dd.value=DifferHour if(convertMinute != DifferMinute) document.formnow.hh.value=DifferMinute if(convertSecond != DifferSecond) document.formnow.mm.value=DifferSecond document.formnow.ss.value=dSecs document.formnow.ss.value=dSecs // document.formnow.Tnow.value= DifferHour DifferMinute + DifferSecond + dSecs setTimeout("clock()",1000) } // 隐藏--> </ script > </ head > < body onload = "clock();return true" > <!--显示出内容--> < form name = "formnow" > < input name = "dd" type = "text" style = "border:0;" size = 2 > 天 < input name = "hh" type = "text" style = "border:0;" size = 2 > 小时 < input name = "mm" type = "text" style = "border:0;" size = 2 > 分 < input name = "ss" type = "text" style = "border:0;" size = 2 > 秒 < span id = "bgclock" style = "float:right;padding-right:10px; padding-top:2px;text=" red""></ span > </ form > <!--倒计时完毕啦--> </ body > </ html >转载于:https://www.cnblogs.com/yyp520thy/p/9300606.html
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