获取当前时间及七天前得时间

/**学习了php  或则 java  就会发现js获取时间比较麻烦，

无法在做到 data=new data("YYYY-mm-dd ");

所以在这里写一份万一工作中用到直接使用就好了*/

var date=new Date();
var year=date.getFullYear();
var weak=date.getMonth()+1;
var day=date.getDate();
var time=year+"-"+(weak<10?"0"+weak:weak)+"-"+(day<10?"0"+day:day);
console.log("当前时间="+time);

var oneweekdate = new Date(date-7*24*3600*1000);
var y = oneweekdate.getFullYear()+'-';
var m= (oneweekdate.getMonth()+1 < 10 ? '0'+(oneweekdate.getMonth()+1) : oneweekdate.getMonth()+1) + '-';
var d= (oneweekdate.getDate() < 10 ? '0'+(oneweekdate.getDate()): oneweekdate.getDate());
var timew=y+m+d;
console.log("7天前得时间="+timew);