ex7-1.xml

<?xml version="1.0" encoding="utf-8"?>
<order number="3123">
    <date> 2002/1/1</date>
    <customer id="216A"> Company A </customer>
    <item>
        <part-number warehouse="Warehouse 11"> E16-25A </part-number>
        <quantity> 16 </quantity>
    </item>
</order>

<!--DOMTree>
0. document
    1. Element("order")
        2. Attribute("number")
            3. Text("3123")
        2. Element("date")
            3. Text("2002/1/1")
        2. Element("customer")
            3. Attribute("id")
                4. Text("216A")
            3. Text("Company A")
        2. Element("item")
            3. Element("part-number")
                4. Attribute("warehouse")
                    5. Text("warehouse 11")
                4. Text("E16-25A")
            3. Element("quantity")
                4. Text("16")
</DOMTree-->