获取当前时间 （XXXX-XX-XX XX:XX:XX格式显示）

var d = new Date();

var youWant = time(d.getFullYear()) + '-' + time((d.getMonth() + 1)) + '-' + time(d.getDate()) + ' ' + time(d.getHours())+":"+ time(d.getMinutes())+":"+ time(d.getSeconds());

function time(s) {
　　return s < 10 ? '0' + s : s;
}

console.log(youWant)//2020-03-16 13:56:10