来源：http://www.ido321.com/847.html
在项目需要一个计时器，效果如下：
js代码
1: /*获取当前时间*/
2: function getCurrentDate()
3: {
4: var timeStr = '';
5: var curDate = new Date();
6: var curMonth = curDate.getMonth()+1; //获取当前月份(0-11,0代表1月)
7: var curDay = curDate.getDate(); //获取当前日(1-31)
8: var curWeekDay = curDate.getDay(); //获取当前星期X(0-6,0代表星期天)
9: var curHour = curDate.getHours(); //获取当前小时数(0-23)
10: var curMinute = curDate.getMinutes(); // 获取当前分钟数(0-59)
11: var curSec =curDate.getSeconds(); //获取当前秒数(0-59)
12: timeStr = curMonth+'月'+curDay+'日 周';
13: switch(curWeekDay)
14: {
15: case 0:timeStr += '日';break;
16: case 1:timeStr += '一';break;
17: case 2:timeStr += '二';break;
18: case 3:timeStr += '三';break;
19: case 4:timeStr += '四';break;
20: case 5:timeStr += '五';break;
21: case 6:timeStr += '六';break;
22: }
23: if(curHour < 10)
24: {
25: if(curMinute < 10)
26: {
27: if(curSec < 10)
28: {
29: timeStr += ' 0'+curHour+':0'+curMinute+':0'+curSec;
30: }
31: else
32: {
33: timeStr += ' 0'+curHour+':0'+curMinute+':'+curSec;
34: }
35: }
36: else
37: {
38: if(curSec < 10)
39: {
40: timeStr += ' 0'+curHour+':'+curMinute+':0'+curSec;
41: }
42: else
43: {
44: timeStr += ' 0'+curHour+':'+curMinute+':'+curSec;
45: }
46: }
47: }
48: else
49: {
50: if(curMinute < 10)
51: {
52: if(curSec < 10)
53: {
54: timeStr += ' '+curHour+':0'+curMinute+':0'+curSec;
55: }
56: else
57: {
58: timeStr += ' '+curHour+':0'+curMinute+':'+curSec;
59: }
60: }
61: else
62: {
63: if(curSec < 10)
64: {
65: timeStr += ' '+curHour+':'+curMinute+':0'+curSec;
66: }
67: else
68: {
69: timeStr += ' '+curHour+':'+curMinute+':'+curSec;
70: }
71: }
72: }
73: $("#time").text(timeStr);
74: }
然后条用这个函数就行。
最后，对Javascript日期的部分函数做个小结：
var myDate = new Date();
myDate.getYear(); //获取当前年份(2位)
myDate.getFullYear(); //获取完整的年份(4位,1970-????)
myDate.getMonth(); //获取当前月份(0-11,0代表1月)
myDate.getDate(); //获取当前日(1-31)
myDate.getDay(); //获取当前星期X(0-6,0代表星期天)
myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours(); //获取当前小时数(0-23)
myDate.getMinutes(); //获取当前分钟数(0-59)
myDate.getSeconds(); //获取当前秒数(0-59)
myDate.getMilliseconds(); //获取当前毫秒数(0-999)
myDate.toLocaleDateString(); //获取当前日期
var mytime=myDate.toLocaleTimeString(); //获取当前时间
myDate.toLocaleString( ); //获取日期与时间