js获取近7天的日期和星期

        //获取系统当前时间
	    var now = new Date(); 
	    var nowTime = now.getTime() ; 
	    var oneDayTime = 24*60*60*1000 ; 

	    for(var i = 0 ; i < 7 ; i++){
	    	
	    	//显示周一
		    var ShowTime = nowTime + (i+1)*oneDayTime ; 
		    //初始化日期时间
		    var myDate = new Date(ShowTime);
		    var year=myDate.getFullYear();    
		    var month=myDate.getMonth()+1;  
		    var date=myDate.getDate(); 
		    console.log(year+"-"+month+"-"+date)
		    var str = "星期" + "日一二三四五六".charAt(myDate.getDay());
		    console.log(str)
	    }