<?xml version="1.0" encoding="GB2312" ?> 
- <Product>
  <ProductItem CategoryCode="1001" ProductCode="0001" ProductTitle="标题0001" /> 
  <ProductItem CategoryCode="1001" ProductCode="0002" ProductTitle="标题0002" /> 
  <ProductItem CategoryCode="1001" ProductCode="0003" ProductTitle="标题0003" /> 
  </Product>怎么远程读取这种xml 加一个条件,ProductCode  必须等于0003呢?