<tbody id="infoTab">

                        <tr class="fomat">

                            <td class="blank"></td>

                            <td>29</td>

                            <td>30</td>

                            <td>31</td>

                            <td>1</td>

                            <td>2</td>

                            <td>3</td>

                            <td>4</td>

                        </tr>

                        <tr class="week">

                            <td class="blank">姓名</td>

                            <td>星期一</td>

                            <td>星期二</td>

                            <td>星期三</td>

                            <td>星期四</td>

                            <td>星期五</td>

                            <td>星期六</td>

                            <td>星期日</td>

                        </tr>

                                                        <tr class="grid-item">

                                    <td class="blank" name="10001">张三</td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                </tr>

                                <tr class="grid-item">

                                    <td class="blank" name="10002">李四</td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                </tr>

                                <tr class="grid-item">

                                    <td class="blank" name="13812071740">测试测试</td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                    <td></td>

                                </tr>

                    </tbody>
                

var table = document.getElementById("infoTab");//获取对应

for (i=0 ; i < table.childElementCount;i++)//根据行数进行具体的处理

{

     alert(table.rows[i].innerHTML);

}

alert(table.rows[i].cells[0].innerHTML);