correct the duplicated code

This commit is contained in:
numbbbbb
2014-06-09 15:55:49 +08:00
parent 7c38a5ab70
commit a5ff8d0962
42 changed files with 90 additions and 90 deletions

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<div class="book" data-level="1.1" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="1.1" data-basepath=".." data-revision="1402300498179">
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<div class="page-inner">
<section class="normal" id="section-gitbook_60">
<section class="normal" id="section-gitbook_118">
<h1 id="-swift">关于 Swift</h1>
<p>Swift 是一种新的编程语言,用于编写 iOS 和 OS X 应用。Swift 结合了 C 和 Objective-C 的优点并且不受C的兼容性的限制。Swift 使用安全的编程模式并添加了很多新特性这将使编程更简单扩展性更强也更有趣。除此之外Swift 还支持人见人爱的 Cocoa 和 Cocoa Touch 框架。拥有了这些特性Swift将重新定义软件开发。</p>

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<div class="book" data-level="1.2" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="1.2" data-basepath=".." data-revision="1402300498179">
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<div class="page-inner">
<section class="normal" id="section-gitbook_61">
<section class="normal" id="section-gitbook_119">
<h1 id="swift-">Swift 初见</h1>
<p>本页内容包括:</p>

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<div class="book" data-level="1" data-basepath=".." data-revision="1402300340983">
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<div class="page-inner">
<section class="normal" id="section-gitbook_62">
<section class="normal" id="section-gitbook_120">
<h1 id="-swift">欢迎使用 Swift</h1>
<p>在本章中您将了解 Swift 的特性和开发历史,并对 Swift 有一个初步的了解。</p>

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<div class="book" data-level="2.1" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="2.1" data-basepath=".." data-revision="1402300498179">
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<div class="page-inner">
<section class="normal" id="section-gitbook_64">
<section class="normal" id="section-gitbook_122">
<h1 id="-">基础部分</h1>
<p>Swift 是 iOS 和 OS X 应用开发的一门新语言。然而,如果你有 C 或者 Objective-C 开发经验的话,你会发现 Swift 的很多内容都是你熟悉的。</p>

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<div class="book" data-level="2.2" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="2.2" data-basepath=".." data-revision="1402300498179">
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<div class="page-inner">
<section class="normal" id="section-gitbook_86">
<section class="normal" id="section-gitbook_144">
<h1 id="-">基础运算符</h1>
<p>运算符是检查, 改变, 合并值的特殊符号或短语. 例如, 加号 <code>+</code> 把计算两个数的和(如 <code>let i = 1 + 2</code>). 复杂些的运行算包括逻辑与<code>&amp;&amp;</code>(如 <code>if enteredDoorCode &amp;&amp; passedRetinaScan</code>), 还有自增运算符 <code>++i</code> 这样让自身加一的便捷运算.</p>

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<div class="book" data-level="2.3" data-basepath=".." data-revision="1402300340983">
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<div class="page-inner">
<section class="normal" id="section-gitbook_65">
<section class="normal" id="section-gitbook_123">
<h1 id="-strings-and-characters-">字符串和字符 (Strings and Characters)</h1>
<p>本页包含内容:</p>

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<div class="page-inner">
<section class="normal" id="section-gitbook_79">
<section class="normal" id="section-gitbook_137">
<h1 id="-functions-">函数Functions</h1>
<p>本页包含内容:</p>
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<pre><code> join(string: &quot;hello&quot;, toString: &quot;world&quot;, withJoiner: &quot;-&quot;)
// returns &quot;hello-world
</code></pre><p>当这个函数被调用时,如果<code>joiner</code>的值没有被指定,函数会使用默认值(&quot; &quot;</p>
<pre><code> join(string: &quot;hello&quot;, toString: &quot;world&quot;, withJoiner: &quot;-&quot;)
// returns &quot;hello-world
<pre><code> join(string: &quot;hello&quot;, toString:&quot;world&quot;)
// returns &quot;hello world&quot;
</code></pre><h3 id="-external-names-for-parameters-with-default-values-">默认值参数的外部参数名External Names for Parameters with Default Values</h3>
<p>在大多数情况下,给带默认值的参数起一个外部参数名是很有用的。这样可以保证当函数被调用且带默认值的参数被提供值时,实参的意图是明显的。</p>
<p>为了使定义外部参数名更加简单当你未给带默认值的参数提供外部参数名时Swift会自动提供外部名字。此时外部参数名与局部名字是一样的就像你已经在局部参数名前写了<code>井号(#</code>一样。</p>

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<div class="book" data-level="2.7" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="2.7" data-basepath=".." data-revision="1402300498179">
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<div class="page-inner">
<section class="normal" id="section-gitbook_80">
<section class="normal" id="section-gitbook_138">
<h1 id="-">闭包</h1>
<p>本页内容包含:</p>

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<div class="page-inner">
<section class="normal" id="section-gitbook_81">
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<h1 id="-">枚举</h1>
<p>本页内容包含:</p>

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<div class="page-inner">
<section class="normal" id="section-gitbook_82">
<section class="normal" id="section-gitbook_140">
<h3 id="-">类和结构体</h3>
<p>本页包含内容:</p>

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<div class="book" data-level="2.10" data-basepath=".." data-revision="1402300340983">
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<div class="book" data-level="2.11" data-basepath=".." data-revision="1402300340983">
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<div class="page-inner">
<section class="normal" id="section-gitbook_84">
<section class="normal" id="section-gitbook_142">
<h1 id="-methods-">方法(Methods)</h1>
<p><strong>方法</strong>是与某些特定类型相关联的功能/函数。类、结构体、枚举都可以定义实例方法;实例方法为指定类型的实例封装了特定的任务与功能。类、结构体、枚举也可以定义类(型)方法(type itself)类型方法与类型自身相关联。类型方法与Objective-C中的类方法(class methods)相似。</p>

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<div class="book" data-level="2.12" data-basepath=".." data-revision="1402300340983">
<div class="book" data-level="2.12" data-basepath=".." data-revision="1402300498179">
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<section class="normal" id="section-gitbook_85">
<section class="normal" id="section-gitbook_143">
<h1 id="-subscripts-">下标 (Subscripts)</h1>
<p>下标可以定义在类(Class)、结构体(structures)和枚举(enumerations)这些目标中,可以认为是访问对象、集合或序列的快捷方式。举例来说,用下标访问一个数组(Array)实例中的元素可以这样写 <code>someArray[index]</code> ,访问字典(Dictionary)实例中的元素可以这样写 <code>someDictionary[key]</code>,而不需要再调用实例的某个方法来获得元素的值。</p>

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<section class="normal" id="section-gitbook_63">
<section class="normal" id="section-gitbook_121">
<h1 id="-">继承</h1>
<p>一个类可以继承另一个类的方法属性和其它特性。当一个类继承其它类继承类叫子类被继承类叫超类或父类。在Swift中继承是区分「类」与其它类型的一个基本特征。</p>

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<div class="book" data-level="2.14" data-basepath=".." data-revision="1402300340983">
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<div class="book" data-level="2.15" data-basepath=".." data-revision="1402300340983">
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<section class="normal" id="section-gitbook_88">
<section class="normal" id="section-gitbook_146">
<h1 id="-">析构过程</h1>
<p>在一个类的实例被释放之前析构函数被立即调用。用关键字deinit来标示析构函数类似于初始化函数用init来标示。析构函数只适用于类类型。</p>

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<section class="normal" id="section-gitbook_89">
<section class="normal" id="section-gitbook_147">
<h1 id="-">自动引用计数</h1>
<p>本页包含内容:</p>

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<div class="book" data-level="2.17" data-basepath=".." data-revision="1402300340983">
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<section class="normal" id="section-gitbook_90">
<section class="normal" id="section-gitbook_148">
<h1 id="optional-chaining">Optional Chaining</h1>
<p>可选链Optional Chaining是一种可以请求和调用属性、方法及子脚本的过程它的自判断性体现于请求或调用的目标当前可能为空<code>nil</code>)。如果自判断的目标有值,那么调用就会成功;相反,如果选择的目标为空(<code>nil</code>),则这种调用将返回空(<code>nil</code>)。多次请求或调用可以被链接在一起形成一个链,如果任何一个节点为空(<code>nil</code>)将导致整个链失效。</p>

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<section class="normal" id="section-gitbook_91">
<section class="normal" id="section-gitbook_149">
<h1 id="-type-casting-">类型检查Type Casting</h1>
<p>ps为了方便各位检验所以保留了英文可删。

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<section class="normal" id="section-gitbook_92">
<section class="normal" id="section-gitbook_150">
<h1 id="-">类型嵌套</h1>
<p>本页包含内容:</p>

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<section class="normal" id="section-gitbook_93">
<section class="normal" id="section-gitbook_151">
<h1 id="-extensions-">扩展Extensions</h1>
<hr>

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<section class="normal" id="section-gitbook_96">
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<h1 id="-">泛型</h1>
<hr>

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<section class="normal" id="section-gitbook_100">
<section class="normal" id="section-gitbook_158">
<h1 id="swift-">Swift 教程</h1>
<p>本章介绍了 Swift 的各种特性及其使用方法,是全书的核心部分。</p>

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<section class="normal" id="section-gitbook_102">
<section class="normal" id="section-gitbook_160">
<h1 id="-">关于语言附注</h1>
<p>本书的这一节描述了Swift编程语言的形式语法。这里描述的语法是为了帮助您更详细的了解该语言而不是让您直接实现一个解析器或编译器。</p>

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<section class="normal" id="section-gitbook_159">
<h1 id="-">特性</h1>
<p>特性提供了关于声明和类型的更多信息。在Swift中有两类特性用于修饰声明的以及用于修饰类型的。例如<code>required</code>特性,当应用于一个类的指定或便利初始化器声明时,表明它的每个子类都必须实现那个初始化器。再比如<code>noreturn</code>特性,当应用于函数或方法类型时,表明该函数或方法不会返回到它的调用者。</p>

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<h1 id="-">语句</h1>
<p>在 Swift 中有两种类型的语句简单语句和控制流语句。简单语句是最常见的用于构造表达式和声明。控制流语句则用于控制程序执行的流程Swift 中有三种类型的控制流语句:循环语句、分支语句和控制传递语句。</p>

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<h1 id="swift-">Swift 编程语言</h1>
<p>Swift 是苹果在 WWDC 2014 上发布的一款全新的编程语言,本书译自苹果官方的 Swift 教程《The Swift Programming Language》。</p>

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@ -237,8 +237,8 @@ Swift统一的函数语法足够灵活可以用来表示任何函数包括
当这个函数被调用时,如果`joiner`的值没有被指定,函数会使用默认值(" "
join(string: "hello", toString: "world", withJoiner: "-")
// returns "hello-world
join(string: "hello", toString:"world")
// returns "hello world"
### 默认值参数的外部参数名External Names for Parameters with Default Values