blob: 276296ccd78a7269d71bbd2f12603f12f2cbfe54 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
---
title: 取余 (%)
slug: Web/JavaScript/Reference/Operators/取余
tags:
- JavaScript
- Language feature
- Operator
- Reference
translation_of: Web/JavaScript/Reference/Operators/Remainder
---
<div>{{jsSidebar("Operators")}}</div>
<p>当一个操作数除以第二个操作数时，取余运算符（％）返回剩余的余数。它与被除数的符号保持一致。</p>
<div>{{EmbedInteractiveExample("pages/js/expressions-remainder.html")}}</div>
<div></div>
<h2 id="语法">语法</h2>
<pre class="syntaxbox notranslate"><strong>Operator:</strong> <var>var1</var> % <var>var2</var>
</pre>
<h2 id="示例">示例</h2>
<h3 id="被除数为正数">被除数为正数</h3>
<pre class="brush: js notranslate"> 12 % 5 // 2
1 % -2 // 1
1 % 2 // 1
2 % 3 // 2
5.5 % 2 // 1.5
</pre>
<h3 id="被除数为负数">被除数为负数</h3>
<pre class="brush: js notranslate">-12 % 5 // -2
-1 % 2 // -1
-4 % 2 // -0</pre>
<h3 id="被除数为NaN">被除数为NaN</h3>
<pre class="brush: js notranslate">NaN % 2 // NaN</pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
</tr>
<tr>
<td>{{SpecName('ESDraft', '#sec-multiplicative-operators', 'Remainder operator')}}</td>
</tr>
</tbody>
</table>
<h2 id="浏览器兼容性">浏览器兼容性</h2>
<p>{{Compat("javascript.operators.remainder")}}</p>
<h2 id="See_also" name="See_also">相关链接</h2>
<ul>
</ul>
<ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Addition">Addition operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Subtraction">Subtraction operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Division">Division operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Multiplication">Multiplication operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Exponentiation">Exponentiation operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Increment">Increment operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Decrement">Decrement operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Unary_negation">Unary negation operator</a></li>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Unary_plus">Unary plus operator</a></li>
</ul>
|
