js格式化时间的简单实例

Date.prototype.format = function(format) { //author: meizz let o = { "M+": this.getMonth() + 1, //月份 "d+": this.getDate(), //日 "H+": this.getHours(), //小时 "m+": this.getMinutes(), //分 "s+": this.getSeconds(), //秒 "q+": Math.floor((this.getMonth() + 3) / 3), //季度 "f+": this.getMilliseconds() //毫秒 }; if (/(y+)/.test(format)) format = format.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); for (let k in o) if (new RegExp("(" + k + ")").test(format))  format = format.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length))); return format;};var d=new Date();d.format('yyyy/MM/dd HH:mm');//"2016/11/25 10:01"