我发现struts2的s:iterator中status.Even判断的是奇数，而status.Odd判断的反而是偶数，请看例子，求解是不是struts的失误？

<s:iterator value="{'北京','上海','广州'}"  id="name" status="st">
                <tr>
                    <s:if test="#st.Even"> 
                        <td style="background: red">
                            <s:property value="#st.index"/>
                            <s:property value="name"/>
                        </td>
                    </s:if>
                        <s:else>
                            <td style="background: green">
                            <s:property value="#st.index"/>
                            <s:property value="name"/>
                        </td>
                        </s:else>
                </tr>
</s:iterator>
出来后偶数的北京和广州是绿的，奇数的上海反而是红的。
我强烈怀疑struts把奇偶搞反了，大家说是不是，还是说这早就不是个秘密了？我刚入行