js把日期字符串转换成时间戳

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//获取当前时间：
var myDate = new Date();//当前时间
var year = myDate.getFullYear();//当前年份
var month = myDate.getMonth() + 1;//当前月份
var day = myDate.getDate();//当前日
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
var oneDay = 1000 * 60 * 60 * 24;
//获取最近一周的日期
var lastDate = new Date(myDate - oneDay * 6);
var lastYear = lastDate.getFullYear();
var lastMonth = lastDate.getMonth() + 1;
var lastDay = lastDate.getDate();
//获取当前月的最后一天
var day = new Date(year ,month , 0);
var lastdate = day.getDate();//当前月的最后一天
//获取最近N个月的日期
   var lastDate = new Date(myDate - oneDay * myDate.getDate());
   lastDate = new Date(lastDate - N * oneDay * (lastDate.getDate() - 1));
   var lastYear = lastDate.getFullYear();
   var lastMonth = lastDate.getMonth() + 1;
   var lastDay = lastDate.getDate();
//字符串转换为时间戳
   var date="2014-05-08 00:22:11";
   date = new Date(Date.parse(date.replace(/-/g, "/")));
   date = date.getTime();

<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><script type="text/javascript">// 获取当前时间戳(以s为单位)var timestamp = Date.parse(new Date());timestamp = timestamp / 1000;//当前时间戳为：1403149534console.log("当前时间戳为：" + timestamp);// 获取某个时间格式的时间戳var stringTime = "2014-07-10 10:21:12";var timestamp2 = Date.parse(new Date(stringTime));timestamp2 = timestamp2 / 1000;//2014-07-10 10:21:12的时间戳为：1404958872 console.log(stringTime + "的时间戳为：" + timestamp2);// 将当前时间换成时间格式字符串var timestamp3 = 1403058804;var newDate = new Date();newDate.setTime(timestamp3 * 1000);// Wed Jun 18 2014 console.log(newDate.toDateString());// Wed, 18 Jun 2014 02:33:24 GMT console.log(newDate.toGMTString());// 2014-06-18T02:33:24.000Zconsole.log(newDate.toISOString());// 2014-06-18T02:33:24.000Z console.log(newDate.toJSON());// 2014年6月18日 console.log(newDate.toLocaleDateString());// 2014年6月18日 上午10:33:24 console.log(newDate.toLocaleString());// 上午10:33:24 console.log(newDate.toLocaleTimeString());// Wed Jun 18 2014 10:33:24 GMT+0800 (中国标准时间)console.log(newDate.toString());// 10:33:24 GMT+0800 (中国标准时间) console.log(newDate.toTimeString());// Wed, 18 Jun 2014 02:33:24 GMTconsole.log(newDate.toUTCString());Date.prototype.format = function(format) {       var date = {              "M+": this.getMonth() + 1,              "d+": this.getDate(),              "h+": this.getHours(),              "m+": this.getMinutes(),              "s+": this.getSeconds(),              "q+": Math.floor((this.getMonth() + 3) / 3),              "S+": this.getMilliseconds()       };       if (/(y+)/i.test(format)) {              format = format.replace(RegExp.$1, (this.getFullYear() + '').substr(4 - RegExp.$1.length));       }       for (var k in date) {              if (new RegExp("(" + k + ")").test(format)) {                     format = format.replace(RegExp.$1, RegExp.$1.length == 1                            ? date[k] : ("00" + date[k]).substr(("" + date[k]).length));              }       }       return format;}console.log(newDate.format('yyyy-MM-dd h:m:s'));</script>

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