javascript计算两个日期之间相差几个月份

2015/02/26 40951

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function checkTime(obj){   
      var startTime= $(obj).parent().siblings().next().next().children().val();//到项目时间 
      var endTime= $(obj).parent().siblings().next().next().next().children().val();//离项目时间 
      var startDate=new Date(startTime.replace("-", "/").replace("-", "/"));   
      var endDate=new Date(endTime.replace("-", "/").replace("-", "/"));   
   
      var number = 0;     
      var yearToMonth = (endDate.getFullYear() - startDate.getFullYear()) * 12;     
      number += yearToMonth;     
      monthToMonth = endDate.getMonth() - startDate.getMonth();     
      number += monthToMonth;     
     //endDay = endDate.getDate();     
     //startDay = startDate.getDate();     
     //dayStep = endDay - startDay;     
     //if (dayStep >= 0) {     
     //    if (dayStep >= 15) {     
     //        number += 1;     
     //    }     
     //} else {     
     //    if (dayStep <= -15) {     
     //        number -= 1;     
     //    }     
     //}  
     $(obj).blur(); 
     alert(parseInt(number  + 1) + " 人月 "); 
     return false; 
}