所以,我从我的数据库中输出了这个:
00:01:53
在span标记内
<span class="jb_timer">00:01:53</span>
所以我的问题是,我怎样才能让它与jQuery倒计时?
感谢。
答案 0 :(得分:4)
这可以让你开始朝着正确的方向前进:
var remaining = $("span.jb_timer").text(),
regex = /\d{2}/g,
matches = remaining.match(regex),
hours = matches[0],
minutes = matches[1],
seconds = matches[2],
remainingDate = new Date();
remainingDate.setHours(hours);
remainingDate.setMinutes(minutes);
remainingDate.setSeconds(seconds);
var intvl = setInterval(function () {
var totalMs = remainingDate.getTime(),
hours, minutes, seconds;
remainingDate.setTime(totalMs - 1000);
hours = remainingDate.getHours();
minutes = remainingDate.getMinutes();
seconds = remainingDate.getSeconds();
if (hours === 0 && minutes === 0 && seconds === 0) {
clearInterval(intvl);
}
$("span.jb_timer").text(
(hours >= 10 ? hours : "0" + hours) + ":" +
(minutes >= 10 ? minutes : "0" + minutes) + ":" +
(seconds >= 10 ? seconds : "0" + seconds));
}, 1000);
工作示例: http://jsfiddle.net/andrewwhitaker/YbLj4/
备注:强>
span
文本中的初始小时,分钟和秒数。使用简单的正则表达式执行此操作。setInterval
设置每1000
毫秒运行一次的计时器。span
的文本。答案 1 :(得分:1)
这是一个非常简单的,似乎完全符合您的要求。它没有Hanlet链接到的脚本的铃声和口哨,我认为它比安德鲁的解决方案更简单(即使有更多的代码行...我的不使用正则表达式,也不使用Date( )对象)。
function countDown(timeDiv){
var timeStringArray = timeDiv.text().split(':');
var timeNumberArray = [];
//the following loop simply converts the values in timeStringArray to actual numbers
for(var i = 0; i < 3; i++){
timeNumberArray.push(parseInt(timeStringArray[i],10));
}
timeNumberArray[2]--; //decrement the seconds
if(timeNumberArray[2] < 0 && timeNumberArray[1] > 0){
timeNumberArray[1]--;
timeNumberArray[2] = 59;
}
//this if statement won't have any effect because the sample timer doesn't have any hours at the moment
if(timeNumberArray[1] < 0 && timeNumberArray[0] > 0){
timeNumberArray[0]--;
timeNumberArray[1] = 59;
}
var newTimeString = (timeNumberArray[0] < 10) ? '0' + timeNumberArray[0] : timeNumberArray[0];
for(var i = 1; i < 3; i++){
var timePart = (timeNumberArray[i] < 10) ? ':0' + timeNumberArray[i] : ':' + timeNumberArray[i];
newTimeString += timePart;
}
if(timeNumberArray[2] !== 0){ //don't want to call the function again if we're at 0
timeDiv.text(newTimeString);
setTimeout(
(function(){
countDown(timeDiv)
}),1000);
}else{
//here's where you could put some code that would fire once the counter reaches 0.
}
}
$(function(){
countDown($('div'));
});
答案 2 :(得分:0)
互联网上有大量的样本和脚本。 Maybe you will like one of these