HTML 当前时间转 datetime-local 类型时间

js

var d = new Date();
var datestring = d.getFullYear() + "-" 
				+ ("0" + (d.getMonth() + 1)).slice(-2) 
				+ "-"  + ("0" + d.getDate()).slice(-2) 
				+ "T" + ("0" + d.getHours()).slice(-2) 
				+ ":" + ("0" + d.getMinutes()).slice(-2);