主要是怎么才能选中第一个子节点,
<initialTemplate>
<ShopInfo>
<Item ........>
                    <ClerkInfo.......>
    </ClerkInfo>
</Item>
<Item ........>
                    <ClerkInfo.......>
    </ClerkInfo>
</Item>
                <Item ........>
                    <ClerkInfo.......>
    </ClerkInfo>
</Item>
</ShopInfo>
<VipInfo>
<Item id='88480003' level='2' sum='726.80'/>
<Item id='88480004' level='5' sum='2060.00'/>
</VipInfo>
<CommudityInfo>
</CommudityInfo>
</initialTemplate>
怎样才能选中第一个节点<ShopInfo>,而不处理后面的节点。