update 03/07
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<div class="book" data-level="2.2" data-basepath=".." data-revision="1402267410054">
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<div class="book" data-level="2.2" data-basepath=".." data-revision="1402287112409">
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<div class="book-header">
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<!-- Actions Left -->
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<a href="#" class="btn pull-left toggle-summary" aria-label="Toggle summary"><i class="fa fa-align-justify"></i></a>
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@ -587,7 +587,7 @@
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<div class="page-inner">
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<section class="normal" id="section-gitbook_30">
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<section class="normal" id="section-gitbook_62">
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<h1 id="-">基础运算符</h1>
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<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>&&</code>(如 <code>if enteredDoorCode && 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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