【泛微OA】JS计算日期相差年数

<script type="text/javascript">
jQuery(document).ready(function(){
 
  setYearValue();

  ModeForm.bindFieldChangeEvent("field14982,field14983",function(obj, id,value){
    setYearValue()
  });
  //***********************
  function cuYear(date1Str , date2Str){
    var date1 = new Date(Date.parse(date1Str.replace(/-/g, "/")));
    var date2 = new Date(Date.parse(date2Str.replace(/-/g, "/")));
    var fm=date1.getMonth();
    var sm=date2.getMonth();

    var dd1=(sm- fm)*30+(date2.getDate()-date1.getDate());

    var year = date2.getFullYear() - date1.getFullYear()+dd1/365;
    return year;
  }
  function setYearValue(){
    var beginDate = ModeForm.getFieldValue("field14982");
    var endDate = ModeForm.getFieldValue("field14983"); 
    var year = cuYear(beginDate, endDate);
    ModeForm.changeFieldValue("field14984", {
      value: year
    });
  }
})
</script>