update 03/07

This commit is contained in:
numbbbbb
2014-06-09 12:12:20 +08:00
parent 6610eb7947
commit fb75918ecd
41 changed files with 139 additions and 66 deletions

View File

@ -46,7 +46,7 @@
<div class="book" data-level="2.8" data-basepath=".." data-revision="1402267410054">
<div class="book" data-level="2.8" data-basepath=".." data-revision="1402287112409">
<div class="book-header">
<!-- Actions Left -->
<a href="#" class="btn pull-left toggle-summary" aria-label="Toggle summary"><i class="fa fa-align-justify"></i></a>
@ -587,7 +587,7 @@
<div class="page-inner">
<section class="normal" id="section-gitbook_25">
<section class="normal" id="section-gitbook_57">
<h1 id="-">枚举</h1>
<p>本页内容包含:</p>
@ -628,7 +628,7 @@
</code></pre><p><code>directionToHead</code>的类型被推断当它被<code>CompassPoint</code>的一个可能值初始化。一旦<code>directionToHead</code>被声明为一个<code>CompassPoint</code>,你可以使用更短的点(.)语法将其设置为另一个<code>CompassPoint</code>的值:</p>
<pre><code>directionToHead = .East
</code></pre><p><code>directionToHead</code>的类型已知时,当设定它的值时,你可以不再写类型名。使用显示类型的枚举值可以让代码具有更好的可读性。</p>
<h2 id="-switch-">匹配枚举值和<code>Switch</code>语句</h2>
<h2 id="-switch-"><code>Switch</code>语句匹配枚举值</h2>
<p>你可以匹配单个枚举值和<code>switch</code>语句:</p>
<pre><code>directionToHead = .South
switch directionToHead {