如何将列表的每个元素分配给任务Ant的参数？

   <target name="assign-elements">
       <property name="my-list" value="item1,item2,item3"/>
       <property name="separator" value=","/>
       <property name="index" value="0"/>

        <for list="${my-list}" delimiter="${separator}" param="item">
            <sequential>
               <property name="index" value="@{index}"/>
                <echo message="Item @{index}: @{item}"/>
            </sequential>
        </for>
    </target>
</project>

Item 0: item1
Item 1: item2
Item 2: item3