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<HTML><HEAD><TITLE>Design Patterns</TITLE></HEAD><BODY bgcolor="#FFFFFF"> <a href="../index.html" target="_top"><img src="../icons/usins.gif" alt="Logo" align=right></a><b>Data Structures and Algorithms with Object-Oriented Design Patterns in Python</b><br><A NAME="tex2html2511" HREF="page114.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html2509" HREF="page111.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html2503" HREF="page112.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A> <A NAME="tex2html2513" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <BR><HR><H1><A NAME="SECTION005200000000000000000">Design Patterns</A></H1><P>An experienced programmer is in a sense like concert musician--he has mastered a certain <em>repertoire</em> of pieceswhich he is prepared to play at any time.For the programmer, the repertoire comprisesa set of abstract data types with which he is familiarand which he is able to use in his programs as the need arises.<P>The chapters following thispresent a basic repertoire of abstract data types.In addition to defining the abstractions,we show how to implement them in Python andwe analyze the performance of the algorithms.<P>The repertoire of basic abstract data typeshas been designed as a hierarchy of Python classes.This section presents an overview of the class hierarchyand lays the groundwork for the following chapters.<P><BR> <HR><UL> <LI> <A NAME="tex2html2514" HREF="page114.html#SECTION005210000000000000000">Class Hierarchy</A><LI> <A NAME="tex2html2515" HREF="page115.html#SECTION005220000000000000000">Abstract Objects and the <tt>__builtin__</tt><tt>.object</tt> Class</A><LI> <A NAME="tex2html2516" HREF="page118.html#SECTION005230000000000000000">Containers</A><LI> <A NAME="tex2html2517" HREF="page121.html#SECTION005240000000000000000">Iterators</A><LI> <A NAME="tex2html2518" HREF="page123.html#SECTION005250000000000000000">Visitors</A><LI> <A NAME="tex2html2519" HREF="page126.html#SECTION005260000000000000000">Searchable Containers</A><LI> <A NAME="tex2html2520" HREF="page127.html#SECTION005270000000000000000">Associations</A></UL><HR><A NAME="tex2html2511" HREF="page114.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html2509" HREF="page111.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html2503" HREF="page112.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A> <A NAME="tex2html2513" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <P><ADDRESS><img src="../icons/bruno.gif" alt="Bruno" align=right><a href="../copyright.html">Copyright © 2003</a> by <a href="../signature.html">Bruno R. Preiss, P.Eng.</a> All rights reserved.</ADDRESS></BODY></HTML>⌨️ 快捷键说明
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