这是需要我们查询的输入XML文件：
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<?xml version="1.0"?><cars> <supercars company="Ferrari"> <carname type="formula one">Ferarri 101</carname> <carname type="sports car">Ferarri 201</carname> <carname type="sports car">Ferarri 301</carname> </supercars> <supercars company="Lamborgini"> <carname>Lamborgini 001</carname> <carname>Lamborgini 002</carname> <carname>Lamborgini 003</carname> </supercars> <luxurycars company="Benteley"> <carname>Benteley 1</carname> <carname>Benteley 2</carname> <carname>Benteley 3</carname> </luxurycars></cars> |
演示示例：