https://www.cnblogs.com/crf-Aaron/archive/2017/11/16/7844462.html
var time = ‘2018-03-22 00:00:00‘.replace(/\-/g, ‘/‘);
var date = new Date(time)
window.alert(date.getTime());
或者
.valueOf()
https://www.cnblogs.com/crf-Aaron/archive/2017/11/16/7844462.html
var time = ‘2018-03-22 00:00:00‘.replace(/\-/g, ‘/‘);
var date = new Date(time)
window.alert(date.getTime());
或者
.valueOf()
原文：https://www.cnblogs.com/CyLee/p/8613008.html