JS 获取日期相差天数
var s1 = '2017-02-23';
//需将日期格式中的-替换成/
s1 = new Date(s1.replace(/-/g, "/"));
s2 = new Date();
var days = s2.getTime() - s1.getTime();
var time = parseInt(days / (1000 * 60 * 60 * 24));
var s1 = '2017-02-23';
//需将日期格式中的-替换成/
s1 = new Date(s1.replace(/-/g, "/"));
s2 = new Date();
var days = s2.getTime() - s1.getTime();
var time = parseInt(days / (1000 * 60 * 60 * 24));