layui时间控件选择时间范围的实现方法

<div class="layui-inline">
  <div class="layui-input-inline">
      <input type="text" name="start_time" class="layui-input" id="start_time" 
         placeholder="开始时间(修改时间)">
   </div>
 </div>
 <div class="layui-inline">
   <div class="layui-input-inline">
     <input type="text" name="end_time" class="layui-input" id="end_time" 
         placeholder="结束时间(修改时间)">
   </div>
 </div>

var start = {
   istime: true,
   format: 'YYYY-MM-DD hh:mm:ss',
   max: '2099-06-16 23:59:59',
   istoday: true,
   choose: function (datas) {
     end.min = datas; //开始日选好后，重置结束日的最小日期
   }
 };
 
 var end = {
   istime: true,
   format: 'YYYY-MM-DD hh:mm:ss',
   max: '2099-06-16 23:59:59',
   istoday: true,
   choose: function (datas) {
     start.max = datas; //结束日选好后，重置开始日的最大日期
   }
 };
 
 document.getElementById('start_time').onclick = function () {
   start.elem = this;
   laydate(start);
 };
 document.getElementById('end_time').onclick = function () {
   end.elem = this;
   laydate(end);
 };

<div class="layui-inline">
    <div class="layui-input-inline">
       <input type="text" name="start_time" class="layui-input" id="start_time" 
           placeholder="开始时间(修改时间)">
    </div>
  </div>
  <div class="layui-inline">
    <div class="layui-input-inline">
      <input type="text" name="end_time" class="layui-input" id="end_time" 
          placeholder="结束时间(修改时间)">
    </div>
  </div>

layui.use([ 'laydate'], function(){
  var $ = layui.$;
  var laydate = layui.laydate;
  var nowTime = new Date().valueOf();
  var max = null;
 
    var start = laydate.render({
    elem: '#start_time',
    type: 'datetime',
    max: nowTime,
    btns: ['clear', 'confirm'],
    done: function(value, date){
      endMax = end.config.max;
      end.config.min = date;
      end.config.min.month = date.month -1;
    }
  });
  var end = laydate.render({
    elem: '#end_time',
    type: 'datetime',
    max: nowTime,
    done: function(value, date){
      if($.trim(value) == ''){
        var curDate = new Date();
        date = {'date': curDate.getDate(), 'month': curDate.getMonth()+1, 'year': curDate.getFullYear()};
      }
      start.config.max = date;
      start.config.max.month = date.month -1;
    }
});

layui.use('laydate', function(){
  /* lay('.layui-input').each(function(){
  laydate.render({
   elem: this
   ,trigger: 'click'
   ,change: function(value, date, endDate){
    console.log(value); //得到日期生成的值，如：2017-08-18
    console.log(date); //得到日期时间对象：{year: 2017, month: 8, date: 18, hours: 0, minutes: 0, seconds: 0}
    console.log(endDate); //得结束的日期时间对象，开启范围选择（range: true）才会返回。对象成员同上。
   }
  });
 }); */
 var $ = layui.$;
   var laydate = layui.laydate;
  var nowTime = new Date().valueOf();
   var max = null;
    var start = laydate.render({
     elem: '#start_time',
     type: 'datetime',
     btns: ['clear', 'confirm'],
     done: function(value, date){
       endMax = end.config.max;
       end.config.min = date;
       end.config.min.month = date.month -1;
     },
     change: function(value, date, endDate){
     var timestamp2 = Date.parse(new Date(value));
  timestamp2 = timestamp2 / 1000;
       end.config.min = timestamp2;
       end.config.min.month = date.month -1;
   }
   });
   var end = laydate.render({
     elem: '#end_time',
     type: 'date',
     done: function(value, date){
     console.log(" ====== "+date);
       if($.trim(value) == ''){
         var curDate = new Date();
         date = {'date': curDate.getDate(), 'month': curDate.getMonth()+1, 'year': curDate.getFullYear()};
       }
       start.config.max = date;
       start.config.max.month = date.month -1;
     }
   });
 });