贴代码啦
// 时间戳转时间
var times = new Date(item.add_time * 1000);
var nian = times.getFullYear(); //年
var yue = times.getMonth() + 1; //月
var tian = times.getDate(); //天
this.timer = nian + '/' + yue + '/' + tian;
// 根据生日算年龄
var birthday = new Date(item.birthday.replace(/-/g, "\/"));
var d = new Date();
var age = d.getFullYear() - birthday.getFullYear() - ((d.getMonth() < birthday.getMonth() || d.getMonth() ==
birthday.getMonth() && d.getDate() < birthday.getDate()) ? 1 : 0);
this.howOld = age ;