s:同行显示

<s:form   action="Login">
        <table   align="center">
          <s:textfield   name="username"   label="名   称"/>
          <s:textfield   name="password"   label="密   码"/>
           <tr>
                    <td colspan="2" align="center">
                        <s:submit   value="login"  theme="simple"  /> <s:reset   value="reset"   theme = "simple"/>
                    </td>
                </tr>
        </table>
    </s:form>