Date输出格式化日期,年,月,日,时,分,秒
let date = new Date();
let year = date.getFullYear();//年
let month = date.getMonth()+1;//月
let getDate = date.getDate(); //日
let hours = date.getHours(); //时
let minutes = date.getMinutes();//分
let siconds = date.getSeconds();//秒
let getDay = date.getDay(); //获得一个星期的某一天
document.write('当前时间是:'+year+'年'+month+'月'+getDate+'日'+hours+'时'+minutes+'分'+siconds+'秒');