JS 计算2个日期相差的天数

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<span style="font-size:18px;">function getDays(strDateStart,strDateEnd){

   var strSeparator = "-"; //日期分隔符

   var oDate1;

   var oDate2;

   var iDays;

   oDate1= strDateStart.split(strSeparator);

   oDate2= strDateEnd.split(strSeparator);

 <span style="color:#FF0000;">  var strDateS = new Date(oDate1[0], oDate1[1]-1, oDate1[2]);

   var strDateE = new Date(oDate2[0], oDate2[1]-1, oDate2[2]);</span>

   iDays = parseInt(Math.abs(strDateS - strDateE ) / 1000 / 60 / 60 /24)//把相差的毫秒数转换为天数

   return iDays ;

}

	function getDay(){

		//起息日

		var  dsLineTime = $('#dsLineTime').val();

		//止息日

		var deLineTime = $('#deLineTime').val();

		var cha = getDays(dsLineTime,deLineTime)

		if(deLineTime!="null"&&deLineTime!=""&&dsLineTime!="" && dsLineTime!="null"){

			$('#rangeCoef').val(cha);

		}

	</span>

	}