js字符串和时间戳之间的转换

//获取当前时间：var myDate = new Date();//年份var year = myDate.getFullYear();//月份var month = myDate.getMonth() + 1;//日var day = myDate.getDate();//年份(2位)myDate.getYear(); //完整年份(4位,1970-????)myDate.getFullYear();//月份(0-11,0代表1月)myDate.getMonth(); //日(1-31)myDate.getDate();//星期X(0-6,0代表星期天)myDate.getDay();//时间戳(从1970.1.1开始的毫秒数)myDate.getTime();//小时数(0-23)myDate.getHours();//分钟数(0-59)myDate.getMinutes();//秒数(0-59)myDate.getSeconds();//毫秒数(0-999)myDate.getSeconds();//日期myDate.getMilliseconds();  //时间var mytime=myDate.toLocaleTimeString(); //日期与时间myDate.toLocaleString( );    //获取最近一周的日期var oneDay = 1000 * 60 * 60 * 24;var lastDate = new Date(myDate - oneDay * 6);var lastYear = lastDate.getFullYear();var lastMonth = lastDate.getMonth() + 1;//获取当前月的最后一天var lastDay = lastDate.getDate();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="2014-12-06";date = new Date(Date.parse(date.replace(/-/g, "/")));date = date.getTime();