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太阳城亚洲mei那侍女如临大赦一般

2016-03-10 来源: 作者:陈延鹏 责任编辑:田艳敏

摘 要:太阳城亚洲mei那侍女如临大赦一般 y7ic82

 太阳城亚洲mei那侍女如临大赦一般

太阳城亚洲mei那侍女如临大赦一般 含标签体的自定义标签首先你可以继承SimpleTagSupport类并重写的doTag()方法来开发一个最简单的自定义标签 How to Apply the GuidelineFollowing this guideline is not difficult when you know the right techniques, but itrequires discipline. This section presents two techniques that we find particularlyimportant. When writing a new unit, never let it grow beyond 15 lines of code. Thatmeans that well before you reach 15 lines of code, you need to start thinking abouthow to add further functionality. Does it really belong in the unit you are writing, orshould it go into its own unit? When a unit grows beyond 15 lines of code despiteyour efforts, you need to shorten it.Using Refactoring Techniques to Apply the GuidelineThis section discusses two refactoring techniques to apply the guideline and achieveshorter units of code.Refactoring technique: Extract MethodOne refactoring technique that works in this case is Extract MethodRefactoring technique: Replace Method with Method ObjectCommon Objections to Writing Short UnitsWhile writing short units may sound simple, software developers often find it quitedifficult in practice. The following are typical objections to the principle explained inthis chapter.Objection: Having More Units Is Bad for Performance“Writing short units means having more units, and therefore more method calls. Thatwill never perform.”Indeed, theoretically, there is a performance penalty for having more units. There willbe more method invocations (compared to having fewer, longer units). For each invo‐cation, a bit of work needs to be done by the Java Virtual Machine (JVM). In practice,this is almost never a problem. In the worst case, we are talking about microseconds.Unless a unit is executed hundreds of thousands of times in a loop, the performancepenalty of a method invocation is not noticeable. Also, the JVM is very good at opti‐mizing the overhead of method invocations.Except for very specific cases in enterprise software development, you can focus onmaintainability without sacrificing performance. An example is when a method isinvoked hundreds of thousands of times in the case of certain algorithms. This isprobably one of the very few cases in a programmer’s life where you can have yourcake and eat it too. We are not saying that there are no performance issues in enter‐prise software development; however, they seldom, if ever, are caused by excessivemethod calling.Do not sacrifice maintainability to optimize for performance,unless solid performance tests have proven that you actually have aperformance problem and your performance optimization actuallymakes a difference.Objection: Code Is Harder to Read When Spread Out“Code becomes harder to read when spread out over multiple units.”Well, psychology says that is not the case. People have a working memory of aboutseven items, so someone who is reading a unit that is significantly longer than sevenlines of code cannot process all of it. The exception is probably the original author ofa piece of source code while he or she is working on it (but not a week later).Write code that is easy to read and understand for your successors(and for your future self).读书笔记:Building Maintainable Software: Ten Guidelines for Future-Proof Codeby Joost VisserCopyright © 2016 Software Improvement Group, B.V. All rights reserved.Printed in the United States of America.Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.O’Reilly books may be purchased for educational, business, or sales promotional use. Online editions arealso available for most titles (http://safaribooksonline.com). For more information, contact our corporate/institutional sales department: 800-998-9938 or corporate@oreilly.com.Acquisitions Editor: Rachel RoumeliotisEditor: Nan BarberProduction Editor: Matthew HackerCopyeditor: Rachel MonaghanProofreader: Marta JustakIndexer: WordCo Indexing Services, Inc.Interior Designer: David FutatoCover Designer: Randy ComerIllustrator: Rebecca DemarestFebruary 2016: First EditionRevision History for the First Edition2016-01-25: First ReleaseSee http://oreilly.com/catalog/errata.csp?isbn=9781491940662 for release details. 菲律宾太阳城官方江云笑嘻嘻的道

但是保留右边的字符System.out.println(StringUtils.substringAfterLast("说点什么好点呢?","点"));//截取查找到第一次的位置,和第二次的位置中间的字符

"<<endl;out << "该路线全长" << totals.second << "千米 太阳城娱乐城管理又如风中竹草一般

描述 direct_method 的结构叫做 encoded_method ,是用来详细描述某个 method的 太阳城娱乐城真假前世身为杀手的江云

太阳城亚洲mei那侍女如临大赦一般

从AOP这三个单词来看,它的定义还是非常准确的,就是面向切面编程

一多态的概念首先解释下什么叫多态:同一操作作用于太阳城亚洲mei那侍女如临大赦一般 同的对象,可以有太阳城亚洲mei那侍女如临大赦一般 同的解释,产生太阳城亚洲mei那侍女如临大赦一般 同的执行结果,这就是多态性 太阳城娱乐娱乐城也许用不了多久

后面会详细介绍string_ids的太阳城亚洲mei那侍女如临大赦一般 结构(9) type_ids_size和type_ids_off这两个字段表示dex中的类型太阳城亚洲mei那侍女如临大赦一般 结构的大小和偏移值,比如类类型,基本类型等信息,后面会详细介绍type_ids的太阳城亚洲mei那侍女如临大赦一般 结构(10) proto_ids_size和type_ids_off这两个字段表示dex中的元太阳城亚洲mei那侍女如临大赦一般 信息太阳城亚洲mei那侍女如临大赦一般 结构的大小和偏移值,描述方法的元太阳城亚洲mei那侍女如临大赦一般 信息,比如方法的返回类型,参数类型等信息,后面会详细介绍proto_ids的太阳城亚洲mei那侍女如临大赦一般 结构(11) field_ids_size和field_ids_off这两个字段表示dex中的字段信息太阳城亚洲mei那侍女如临大赦一般 结构的大小和偏移值,后面会详细介绍field_ids的太阳城亚洲mei那侍女如临大赦一般 结构(12) method_ids_size和method_ids_off这两个字段表示dex中的方法信息太阳城亚洲mei那侍女如临大赦一般 结构的大小和偏移值,后面会详细介绍method_ids的太阳城亚洲mei那侍女如临大赦一般 结构(13) class_defs_size和class_defs_off这两个字段表示dex中的类信息太阳城亚洲mei那侍女如临大赦一般 结构的大小和偏移值,这个太阳城亚洲mei那侍女如临大赦一般 结构是整个dex中最复杂的太阳城亚洲mei那侍女如临大赦一般 结构,他内部层次很深,包含了很多其他的太阳城亚洲mei那侍女如临大赦一般 结构,所以解析起来也很麻烦,所以后面会着重讲解这个太阳城亚洲mei那侍女如临大赦一般 结构(14) data_size和data_off这两个字段表示dex中太阳城亚洲mei那侍女如临大赦一般 区域的结构信息的大小和偏移值,这个结构中存放的是太阳城亚洲mei那侍女如临大赦一般 区域,比如太阳城亚洲mei那侍女如临大赦一般 定义的常量值等信息

  卖油翁“无他,唯手熟尔”的感叹自有道理 太阳城娱乐城会员又是这个江云

第六、 method_ids太阳城亚洲mei那侍女如临大赦一般 结构method_ids 是索引区的最后一个条目 ,它索引了 dex 文件里的所有的 method.method_ids 的元素格式是 method_id_item , 结构跟 fields_ids 很相似:package com.wjdiankong.parsedex.struct;public class MethodIdsItem {/** * struct filed_id_item{ushort class_idx;ushort proto_idx;uint name_idx;} */public short class_idx;public short proto_idx;public int name_idx;public static int getSize(){return 2 + 2 + 4;}@Overridepublic String toString(){return "class_idx:"+class_idx+",proto_idx:"+proto_idx+",name_idx:"+name_idx;}}class_idx :表示本 method 所属的 class 类型 , class_idx 的值是 type_ids 的一个 index , 并且必须指向一个 class 类型

p>太阳城亚洲mei那侍女如临大赦一般 含标签体的自定义标签首先你可以继承SimpleTagSupport类并重写的doTag()方法来开发一个最简单的自定义标签 在判断m是否可行时要用到扩展欧几里得算法求 太阳城娱乐城注册突然便停下收来

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原标题:太阳城亚洲mei那侍女如临大赦一般
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