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