js獲取時間差值

 1 function GetTime(firstDate, secondDate) {
 2     // 1.對時間進行處理
 3     var firsttime = Date.parse(firstDate + " 00:00:00");
 4     var secondtime = Date.parse(secondDate + " 00:00:00");
 5     // 2.獲取時間間隔
 6     var timespan = secondtime - firsttime;
 7     // 3.獲取天
 8     var day = Math.floor(timespan / 1000 / 60 / 60 / 24);
 9     // 4.獲取小時
10     var hour = Math.floor(timespan / 1000 / 60 / 60);
11     // 5.獲取分鍾
12     var minute = Math.floor(timespan / 1000 / 60 - hour * 60);
13     // 6.獲取秒
14     var second = timespan / 1000 - hour * 60 * 60 - minute * 60;
15     return day + "@" + hour + "@" + minute + "@" + second;
16 }