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123 lines
5.9 KiB
HTML
123 lines
5.9 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>module (模块) | Auto.js 3.0.0 文档</title>
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato:400,700,400italic">
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<link rel="stylesheet" href="assets/sh.css">
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<body class="alt apidoc" id="api-section-modules">
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<div id="content" class="clearfix">
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<div id="column2" class="interior">
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<div id="intro" class="interior">
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<a href="/" title="返回首页">
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Auto.js
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</a>
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<ul>
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<li><a class="nav-documentation" href="documentation.html">关于本文档</a></li>
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<li><a class="nav-http-www-w3school-com-cn-js-pro_js_syntax-asp" href="http://www.w3school.com.cn/js/pro_js_syntax.asp">W3CSchool - ECMAScript教程</a></li>
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<li><a class="nav-http-es6-ruanyifeng-com-README" href="http://es6.ruanyifeng.com/#README">阮一峰 - ECMAScript 6教程</a></li>
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</ul>
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<div class="line"></div>
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<ul>
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<li><a class="nav-overview" href="overview.html">Overview - 综述</a></li>
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<li><a class="nav-qa" href="qa.html">Q&A - 常见问题</a></li>
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<li><a class="nav-app" href="app.html">App - 应用</a></li>
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<li><a class="nav-console" href="console.html">Console - 控制台</a></li>
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<li><a class="nav-coordinates-based-automation" href="coordinates-based-automation.html">CoordinatesBasedAutomation - 基于坐标的操作</a></li>
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<li><a class="nav-device" href="device.html">Device - 设备</a></li>
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<li><a class="nav-dialogs" href="dialogs.html">Dialogs - 对话框</a></li>
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<li><a class="nav-engines" href="engines.html">Engines - 脚本引擎</a></li>
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<li><a class="nav-events" href="events.html">Events - 事件与监听</a></li>
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<li><a class="nav-floaty" href="floaty.html">Floaty - 悬浮窗</a></li>
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<li><a class="nav-files" href="files.html">Files - 文件系统</a></li>
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<li><a class="nav-globals" href="globals.html">Globals - 一般全局函数</a></li>
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<li><a class="nav-http" href="http.html">Http - HTTP</a></li>
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<li><a class="nav-images" href="images.html">Images - 图片与图色处理</a></li>
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<li><a class="nav-keys" href="keys.html">Keys - 按键模拟</a></li>
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<li><a class="nav-media" href="media.html">Media - 多媒体</a></li>
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<li><a class="nav-modules active" href="modules.html">Modules - 模块</a></li>
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<li><a class="nav-widgets-based-automation" href="widgets-based-automation.html">WidgetsBasedAutomation - 基于控件的操作</a></li>
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<li><a class="nav-sensors" href="sensors.html">Sensors - 传感器</a></li>
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<li><a class="nav-shell" href="shell.html">Shell - Shell命令</a></li>
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<li><a class="nav-storages" href="storages.html">Storages - 本地存储</a></li>
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<li><a class="nav-threads" href="threads.html">Threads - 多线程</a></li>
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<li><a class="nav-timers" href="timers.html">Timers - 定时器</a></li>
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<li><a class="nav-ui" href="ui.html">UI - 用户界面</a></li>
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<li><a class="nav-https-developer-mozilla-org-zh-CN-docs-Mozilla-Projects-Rhino-Scripting_Java" href="https://developer.mozilla.org/zh-CN/docs/Mozilla/Projects/Rhino/Scripting_Java">Work with Java - 调用Java API</a></li>
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</ul>
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<div class="line"></div>
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<ul>
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<li><a class="nav-https-github-com-hyb1996-NoRootScriptDroid" href="https://github.com/hyb1996/NoRootScriptDroid">GitHub项目 & Issue提交</a></li>
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<li><a class="nav-http-autojs-org" href="http://autojs.org">Auto.js交流社区</a></li>
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</ul>
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</div>
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<div id="column1" data-id="modules" class="interior">
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<header>
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<h1>Auto.js 3.0.0 文档</h1>
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<div id="gtoc">
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<p>
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<a href="index.html" name="toc">索引</a> |
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<a href="all.html">查看全部</a>
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</p>
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</div>
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<hr>
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</header>
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<div id="toc">
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<h2>目录</h2>
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<ul>
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<li><span class="stability_2"><a href="#modules_module">module (模块)</a></span></li>
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</ul>
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</div>
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<div id="apicontent">
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<h1>module (模块)<span><a class="mark" href="#modules_module" id="modules_module">#</a></span></h1>
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<div class="api_stability api_stability_2"><a href="documentation.html#documentation_stability_index">Stability: 2</a> - Stable</div><p>Auto.js 有一个简单的模块加载系统。 在 Auto.js 中，文件和模块是一一对应的（每个文件被视为一个独立的模块）。</p>
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<p>例子，假设有一个名为 foo.js 的文件：</p>
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<pre><code>const circle = require('circle.js');
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console.log("半径为 4 的圆的面积是 %d", circle.area(4));
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</code></pre><p>在第一行中，foo.js 加载了同一目录下的 circle.js 模块。</p>
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<p>circle.js 文件的内容为：</p>
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<pre><code>const PI = Math.PI;
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var circle = {};
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circle.area = (r) => PI * r ** 2;
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circle.circumference = (r) => 2 * PI * r;
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module.exports = circle;
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</code></pre><p>circle.js 模块导出了 area() 和 circumference() 两个函数。 通过在特殊的 exports 对象上指定额外的属性，函数和对象可以被添加到模块的根部。</p>
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<p>模块内的本地变量是私有的。 在这个例子中，变量 PI 是 circle.js 私有的，不会影响到加载他的脚本的变量环境。</p>
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<p>module.exports属性可以被赋予一个新的值（例如函数或对象）。</p>
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<p>如下，bar.js 会用到 square 模块，square 导出一个构造函数：</p>
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<pre><code>const square = require('square.js');
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const mySquare = square(2);
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console.log("正方形的面积是 %d", mySquare.area());
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square 模块定义在 square.js 中：
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// 赋值给 `exports` 不会修改模块，必须使用 `module.exports`
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module.exports = function(width) {
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return {
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area: () => width ** 2
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};
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};
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</code></pre>
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</div>
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</div>
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</div>
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<script src="assets/sh_main.js"></script>
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<script src="assets/sh_javascript.min.js"></script>
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