1 1.将时间（2017-08-10）转换时间戳

 2 var startTime = '2017-08-10';

 3 var startdate = new Date(Date.parse(startTime.replace(/-/g, "/")));

 4 startdate = startdate.getTime() / 1000;

 5 alert(startdate)

 6

 7 2.将时间（2017-08-10 10:15:30）转换时间戳

 8 var startTime = '2017-08-10 10:15:30';

 9 var startdate = new Date(Date.parse(startTime.replace(/-/g, "/")));

10 startdate = startdate.getTime() / 1000;

11 alert(startdate)

12

13 3.时间（2017/08/10）转换时间戳

14 var times = '2017/08/10';

15 var old = (new Date(times)).getTime()/1000;

16 alert(old);

17

18 4.时间（2017/08/10 15:15:30）转换时间戳

19 var times = '2017/08/10 15:15:30';

20 var old = (new Date(times)).getTime()/1000;

21 alert(old);