monthDateFun(startDate, endDate) {
    function formatDatetime(datetimeString) {//日期格式化 兼容移动端IOS跟安卓日期出现的NAN     var datetime;     if (isNaN(Date.parse(datetimeString))) {
        datetime = datetimeString && new Date(Date.parse(datetimeString.replace(/-/g, '/').replace(/T/g, ' ')));     } else {
        datetime = datetimeString && new Date(Date.parse(datetimeString));     }     return datetime;   }   var sdate = formatDatetime(startDate);//格式化日期   var starDateText = formatDatetime(endDate);//格式化日期   var totalMonth;   var starTime = (sdate && (sdate.getFullYear() + "-" + (sdate.getMonth() + 1) + "-" + sdate.getDate())) || '';   var endTime = (starDateText && (starDateText.getFullYear() + "-" + (starDateText.getMonth() + 1) + "-" + starDateText.getDate())) || '';   // 拆分年月日   starTime = starTime.split('-');   // 得到月数   starTime = parseInt(starTime[0]) * 12 + parseInt(starTime[1]);   // 拆分年月日   endTime = endTime.split('-');   // 得到月数   endTime = parseInt(endTime[0]) * 12 + parseInt(endTime[1]);   totalMonth = Math.abs(starTime - endTime);   return totalMonth || 0; },