/**  * 优惠券有效期  * startDate:起始日期  * valueTime：有效天数  */ function transferCouponValueTime(startDate,valueTime){	 var date = new Date(startDate);	 var newDate = new Date(date.getFullYear(),date.getMonth(),date.getDate()+valueTime);	 var year1 = date.getFullYear();	 var month1 = date.getMonth()+1;	 var day1 = date.getDate();	 var year2 = newDate.getFullYear();	 var month2 = newDate.getMonth()+1;	 var day2 = newDate.getDate();	 return ""+year1+"-"+month1+"-"+day1+"一"	 						+year2+"-"+month2+"-"+day2+"";	  }