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chapter2/23_Advanced_Operators.html

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                         <blockquote>
 <p>翻译：<a href="https://github.com/xielingwang" target="_blank">xielingwang</a><br>校对：<a href="https://github.com/numbbbbb" target="_blank">numbbbbb</a></p>
@@ -739,23 +761,18 @@ let y = x &amp;/ 0
 </code></pre>
 <p>如果严格地从左计算到右，计算过程会是这样：</p>
 <ul>
-<li>2 plus 3 equals 5;</li>
 <li>2 + 3 = 5</li>
-<li>5 times 4 equals 20;</li>
 <li>5 * 4 = 20</li>
-<li>20 remainder 5 equals 0</li>
 <li>20 / 5 = 4 余 0</li>
 </ul>
 <p>但是正确答案是<code>4</code>而不是<code>0</code>。优先级高的运算符要先计算，在Swift和C语言中，都是先乘除后加减的。所以，执行完乘法和求余运算才能执行加减运算。</p>
 <p>乘法和求余拥有相同的优先级，在运算过程中，我们还需要结合性，乘法和求余运算都是左结合的。这相当于在表达式中有隐藏的括号让运算从左开始。</p>
 <pre><code class="lang-swift">2 + ((3 * 4) % 5)
 </code></pre>
-<p>(3 <em> 4) is 12, so this is equivalent to:
-3 </em> 4 = 12，所以这相当于：</p>
+<p>3 * 4 = 12，所以这相当于：</p>
 <pre><code class="lang-swift">2 + (12 % 5)
 </code></pre>
-<p>(12 % 5) is 2, so this is equivalent to:
-12 % 5 = 2，所这又相当于</p>
+<p>12 % 5 = 2，所这又相当于</p>
 <pre><code class="lang-swift">2 + 2
 </code></pre>
 <p>计算结果为 4。</p>