时间戳转换
function add0(m) { return m < 10 ? '0' + m : m }
function format(timestamp) {
//timestamp是整数，否则要parseInt转换
var time = new Date(timestamp);
var y = time.getFullYear();
var m = time.getMonth() + 1;
var d = time.getDate();
var h = time.getHours();
var mm = time.getMinutes();
var s = time.getSeconds();
return y + '-' + add0(m) + '-' + add0(d) + ' ' + add0(h) + ':' + add0(mm) + ':' + add0(s);
}
获取时间戳
Date.now()
