Jquery动态添加新的行字段

Question

您好我想动态添加多个行，我的表单具有相同的字段但不同的表单字段名称（例如city1，city2，city3，... college1，college2，college3 ...）然后所有数据都进入mysql

我试过我的搜索，但没有任何对我有用的是我的代码请帮助我

<div class="form_student_add">
                    <table class="dd" width="100%" id="data">
                    <tr>
                    <td>City</td>
                    <td>College</td>
                    <td>Name</td>
                    </tr>

                    <tr>
                    <td>
                    <select name="city" id="city">
                    <option selected="selected" value="0">--Select City--</option>
                    <?php                           
                        $sql=mysql_query("select * from tblcities");
                            while($row=mysql_fetch_array($sql))
                                {
                                    $id=$row['city_id'];
                                    $data=$row['city_name'];
                                    echo '<option value="'.$id.'">'.$data.'</option>';
                                } 
                    ?>
                    </select>
                    </td>

                    <td>
                    <select name="college" id="college">
                    <option selected="selected" value="0">--Select College--</option>
                    <?php                           
                        $sql=mysql_query("select * from tblcollege");
                            while($row=mysql_fetch_array($sql))
                                {
                                    $id=$row['college_id'];
                                    $data=$row['college_name'];
                                    echo '<option value="'.$id.'">'.$data.'</option>';
                                } 
                    ?>
                    </select></td>

                    <td><input name="full_name" type="text" placeholder="e.g. John Smith" /></td>
                    </tr>
                    </table> 

                    <div class="form_btn_videos">
                    <input type="button" id="id="addTableRow"" name="addnew" value="Add New Part" />
                    </div>
                </div>