For online information and ordering of this and other Manning books, please go to

www.manning.com. The publisher offers discounts on this book when ordered in quantity.

For more information, please contact:

在线信息和订购这本书和其他相关书籍，请到www.manning.com，如大量订购提供折扣，更多信息请联系：

Special Sales Department

Manning Publications Co.

Sound View Court 3B Fax: (609) 877-8256

Greenwich, CT 06830 Email: orders@manning.com

©2008 by Manning Publications Co. All rights reserved.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted,

in any form or by means electronic, mechanical, photocopying, or otherwise, without

prior written permission of the publisher.

本刊物不得转载，储存于检索系统，或传输， 以任何形式或通过电子，机械，复印，或以其他方式，不事先获取出版商书面许可。@_@

Many of the designations used by manufacturers and sellers to distinguish their products

are claimed as trademarks. Where those designations appear in the book, and Manning

Publications was aware of a trademark claim, the designations have been printed in initial

caps or all caps.

许多指定使用的制造商和销售商来区分他们的产品据称作为商标。如果这些名称出现在这本书，和曼宁刊物意识到商标索赔，名称已被印在初始盖或全部大写。

Recognizing the importance of preserving what has been written, it is Manning’s policy

to have the books we publish printed on acid-free paper, and we exert our best efforts

to that end. Recognizing also our responsibility to conserve the resources of our planet,

Manning books are printed on paper that is at least 15% recycled and processed without

the use of elemental chlorine.

认识到必须维护已经写，这是曼宁的政策
已出版的书籍，我们印在无酸纸，我们尽最大努力
实现这一目标。还认识到，我们有责任保护我们星球的资源，
曼宁书所用纸张，这是至少15 ％回收和处理不
采用元素氯。

果然够环保