page140.html

来自「Data Structures And Algorithms With Obje」· HTML 代码 · 共 37 行

HTML
37 行
字号 
<HTML><HEAD><TITLE>__init__ and purge Methods</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="tex2html2826" HREF="page141.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html2824" HREF="page138.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html2818" HREF="page139.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html2828" HREF="page611.html"><IMG WIDTH=43 HEIGHT=24 ALIGN=BOTTOM ALT="index" SRC="../icons/index_motif.gif"></A> <BR><HR><H3><A NAME="SECTION006122000000000000000"><tt>__init__</tt> and <tt>purge</tt> Methods</A></H3><P>The definitions of the <tt>__init__</tt> and the <tt>purge</tt> methods ofthe <tt>StackAsLinkedList</tt> classare shown in Program&nbsp;<A HREF="page138.html#progstackAsLinkedLista"><IMG  ALIGN=BOTTOM ALT="gif" SRC="../icons/cross_ref_motif.gif"></A>.With a linked-list implementation,it is not necessary to preallocate storage space for the objects in the stack.Space is allocated dynamically and incrementally on the basis of demand.<P>The <tt>__init__</tt> method simply creates an empty <tt>LinkedList</tt>and assigns it to the <tt>_list</tt> instance attribute.Since an empty list can be created in constant time,the running time of the <tt>StackAsLinkedList</tt> <tt>__init__</tt> method is <I>O</I>(1).<P>The <tt>purge</tt> method of the <tt>StackAsLinkedList</tt> classsimply calls the <tt>purge</tt> method of the <tt>LinkedList</tt> class.The <tt>purge</tt> method of the <tt>LinkedList</tt> classdiscards all the elements of the list in constant time.Consequently, the running time of the <tt>purge</tt> method is also <I>O</I>(1).<P><HR><A NAME="tex2html2826" HREF="page141.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="../icons/next_motif.gif"></A> <A NAME="tex2html2824" HREF="page138.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="../icons/up_motif.gif"></A> <A NAME="tex2html2818" HREF="page139.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="../icons/previous_motif.gif"></A>  <A NAME="tex2html2828" 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 &#169; 2003</a> by <a href="../signature.html">Bruno R. Preiss, P.Eng.</a>  All rights reserved.</ADDRESS></BODY></HTML>

page140.html - 源码说明

本页面展示了「Data Structures And Algorithms With Object-Oriented Design Patterns In Python (2003) source code and」中的 page140.html 源码文件，采用 HTML 编程语言编写，共 37 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫下载站收录了大量与Object-Oriented相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?