jquery 动态生成的input添加change事件

借助js的on方法，可以给动态生成的input标签，添加change事件

1     //我的费率
2     $(document).on("input propertychange", "#mytbody .my_rate", function (e) {
3         var my_rate = $(this).val();
4         var obj = $(this).parent().parent();
5         var child_rate = $(obj.find('.child_rate')[0]).val();
6         $(obj.find('.left_rate')[0]).val(parseFloat(my_rate)-parseFloat(child_rate));
7     });

这是动态生成的html结构

 1 <table >
 2         <thead>
 3         <tr>
 4             <th  width="3%"><div class="th-inner">ID</div><div class="fht-cell"></div></th>
 5             <th  width="10%"><div class="th-inner ">产品名称</div><div class="fht-cell"></div></th>
 6             <th  width="5%"><div class="th-inner ">产品分类</div><div class="fht-cell"></div></th>
 7             <th  width="5%"><div class="th-inner ">保费</div><div class="fht-cell"></div></th>
 8             <th  width="3%"><div class="th-inner ">总服务费率</div><div class="fht-cell"></div></th>
 9             <th  width="3%"><div class="th-inner ">下级分销服务费率</div><div class="fht-cell"></div></th>
10             <th  width="3%"><div class="th-inner ">剩余自留费率</div><div class="fht-cell"></div></th>
11             <th  width="3%"><div class="th-inner ">操作</div><div class="fht-cell"></div></th>
12         </tr>
13         </thead>
14         <tbody >
15              <tr >
16                 <td  >22</td>
17                 <td  >京彩一生百万医疗</td>
18                 <td  >意外险</td>
19                 <td  >0.00</td>
20                 <td ><input class="form-control my_rate" type="number" ></td>
21                 <td ><input class="form-control child_rate" type="number" ></td>
22                 <td ><input class="form-control left_rate" type="number" ></td>
23                 <td  class="mydel" data->删除</td>
24             </tr>
25             <tr >
26                 <td  >27</td>
27                 <td  >平安一生</td>
28                 <td  >健康险</td>
29                 <td  >100000.00</td>
30                 <td ><input class="form-control my_rate" type="number" ></td>
31                 <td ><input class="form-control child_rate" type="number" ></td>
32                 <td ><input class="form-control left_rate" type="number" ></td>
33                 <td  class="mydel" data->删除</td>
34             </tr>
35          </tbody>
36     </table>

使用bind方法不行，具体，on和bind和区别自行百度吧，我也不明白