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<!DOCTYPE html>
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<meta name="description" content="一、注释 注释：用来说明在某段代码的作用，也可以用来说明某个类、某个方法的作用等等。 OC 里边有两种注释方式：单行注释，多行注释。 单行注释：使用//双斜杠来表示，它只能够注释一行代码。 多行注释：使用/* ... */来表示，其中/*这个表示开始，而 */表示结束。多行注释也是说， …">
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<h1><a href="/">Jss_forever</a></h1>
<h2>佛说，有求皆苦，无求乃乐；你若盛开，蝴蝶自来；你若精彩，天自安排。</h2>
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<h1 class="entry-title"><a href="/blog/2015/11/22/01-ocji-chu-shu-ju-lei-xing/">01. OC基础-数据类型</a></h1>
<p class="meta">
<time class='entry-date' datetime='2015-11-22T22:39:45+08:00'><span class='date'><span class='date-month'>Nov</span> <span class='date-day'>22</span><span class='date-suffix'>nd</span>, <span class='date-year'>2015</span></span> <span class='time'>10:39 pm</span></time>
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<div class="entry-content"><h3>一、注释</h3>
<p><strong>注释</strong>：用来说明在某段代码的作用，也可以用来说明某个类、某个方法的作用等等。</p>
<p>OC 里边有<strong>两种</strong>注释方式：单行注释，多行注释。</p>
<p><strong>单行注释</strong>：使用<code>//</code>双斜杠来表示，它只能够注释一行代码。</p>
<p><strong>多行注释</strong>：使用<code>/* ... */</code>来表示，其中<code>/*</code>这个表示开始，而 <code>*/</code>表示结束。多行注释也是说，可以将多行代码注释掉。<font color=red>特别需要注意的是：多行注释不能够嵌套。</font></p>
<figure class='code'><div class="highlight"><table><tr><td class="gutter"><pre class="line-numbers"><span class='line-number'>1</span>
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<span class='line-number'>16</span>
</pre></td><td class='code'><pre><code class=''><span class='line'>#import <Foundation/Foundation.h>
</span><span class='line'>int main(int argc, argv[]){
</span><span class='line'> @autoreleasepool{
</span><span class='line'> //这是一条输出语句（单行注释）
</span><span class='line'> NSLog(@"I am is Jss.");
</span><span class='line'>
</span><span class='line'> /*
</span><span class='line'> 下面将会输出李白的《静夜思》
</span><span class='line'> （多行注释）
</span><span class='line'> */
</span><span class='line'> NSLog(@"床前明月光");
</span><span class='line'> NSLog(@"疑是地上霜");
</span><span class='line'> NSLog(@"举头望明月");
</span><span class='line'> NSLog(@"低头思故乡");
</span><span class='line'> }
</span><span class='line'>}
</span></code></pre></td></tr></table></div></figure>
<blockquote><p>注释除了能够进行对代码的说明，它还能够帮助我们调试程序，当我们觉得某一句代码，或者某一块代码有问题的话，可以使用注释进行注释，在运行程序来查找相关问题。</p></blockquote>
<h3>二、数据类型</h3>
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