var start = $("#startDate").val();
var end = $("#endDate").val();
var date1 = new Date(start.replace(/[^\/\d]+/g,"/")+",0:0:0");
var date2 = new Date(end.replace(/[^\/\d]+/g,"/")+",0:0:0");
date1.setMonth(date1.getMonth() + 2);
if (date2 > date1) {
alertMsg.warn("查询最长时间为两个月");
}