Javascript时间操作小结

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