var start = "2017-5-25";
	var end = "2017-6-5";
	var startTime = new Date(start);
	var endTime = new Date(end)
	var timeArr = [];
	var weekDay = ["1","2","3"]
	while((endTime.getTime()-startTime.getTime())>=0){
	  var year = startTime.getFullYear();
	  var month = startTime.getMonth().toString().length==1?"0"+(startTime.getMonth() + 1).toString():startTime.getMonth() + 1;
	  var day = startTime.getDate().toString().length==1?"0"+startTime.getDate():startTime.getDate();
	  var date = year+"-"+month+"-"+day;
	  for(var i = 0;i < weekDay.length; i++){
		if(new Date(date).getDay() == weekDay[i]){
			timeArr.push(date);
		}
	  }
	  console.log(date);
	  startTime.setDate(startTime.getDate()+1);
	  
	}
	console.log(timeArr);
	

js實現獲取兩個日期之間篩選出指定周日制的方法