moxunpw
/
layui_toolnb


			
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>镜像站@Layui 模块规范</title>
<meta name="renderer" content="webkit">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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  ;!function(){self!==parent&&(location.href="http://www.baidu.com/")}();
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  <link rel="stylesheet" href="/public/layui/dist/css/layui.css" tppabs="http://res.layui.com/layui/dist/css/layui.css?t=1632428048355"  media="all">
  <link rel="stylesheet" href="/public/static/css/global.css" tppabs="http://res.layui.com/static/css/global.css?t=1632428048355-19" media="all">
</head>
<body>


<div class="layui-header header header-doc" autumn>
  <div class="layui-container">
    <a class="logo" href="../../index.html" tppabs="http://www.layui.com/">
      <img src="/public/static/images/layui/logo.png" tppabs="http://res.layui.com/static/images/layui/logo.png" alt="layui">
    </a>
    <div class="layui-form layui-hide-xs component" lay-filter="LAY-site-header-component"></div>
    <div class="layui-hide-xs site-notice"></div>
    
    <ul class="layui-nav" id="LAY_NAV_TOP">
      <li class="layui-nav-item layui-this">
        <a href="../index.html" tppabs="http://www.layui.com/doc/">文档</a>
      </li>
      <li class="layui-nav-item ">
        <a href="../../demo/index.html" tppabs="http://www.layui.com/demo/">示例</a>
      </li>
      
      <li class="layui-nav-item">
        <a href="javascript:;">
          <!--<span class="layui-badge-dot" style="left:0; right: auto; margin: -4px 0 0 5px;"></span>--> 
          周边
        </a>
        <dl class="layui-nav-child layui-nav-child-c">  
          <dd class="layui-hide-sm layui-show-xs" lay-unselect>
            <a href="https://gitee.com/sentsin/layui/issues" target="_blank" rel="nofollow">问题反馈</a>
            <hr>
          </dd>
          
          <dd lay-unselect><a href="../../alone.html" tppabs="http://www.layui.com/alone.html" target="_blank" lay-unselect>独立组件</a></dd>
          <dd lay-unselect><a href="../../../fly.layui.com/extend/index.html" target="_blank">扩展组件</a></dd>
        </dl>
      </li>
      
      <li class="layui-nav-item layui-hide-xs">
        <a href="http://gitee.com/sentsin/layui/issues" target="_blank" rel="nofollow">反馈</a>
      </li>
    </ul>
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</div>
 
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<ul class="site-dir">
  <li><a href="#before"><cite>预先加载模块</cite></a></li>
  <li><a href="#space"><cite>模块命名空间</cite></a></li>
  <li><a href="#extend"><cite>扩展一个 layui 模块</cite></a></li>
</ul>
<div class="layui-container layui-row">
  
<div class="layui-col-md3">
  <div class="layui-panel site-menu">
    <ul class="layui-menu layui-menu-lg">
      <li class="layui-menu-item-group" lay-options="{type: 'group', isAllowSpread: true}">
        <div class="layui-menu-body-title">
          基础说明
        </div>
        <hr>
        <ul>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../index.html" tppabs="http://www.layui.com/doc/">
                <span>开始使用 </span> 
                <span class="layui-font-12 layui-font-gray">Getting Started</span>
              </a>
              
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="infrastructure.html" tppabs="http://www.layui.com/doc/base/infrastructure.html">
                <span>底层方法 </span>
                <span class="layui-font-12 layui-font-gray">基础支撑</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="element.html" tppabs="http://www.layui.com/doc/base/element.html">
                <span>页面元素 </span>
                <span class="layui-font-12 layui-font-gray">规范 公共类 属性</span>
              </a>
            </div>
          </li>
          <li class="layui-menu-item-checked2">
            <div class="layui-menu-body-title">
              <a href="modules.html" tppabs="http://www.layui.com/doc/base/modules.html">
                <span>模块规范 </span>
                <span class="layui-font-12 layui-font-gray">使用 扩展</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="faq.html" tppabs="http://www.layui.com/doc/base/faq.html">
                <span>常见问题 </span>
                <span class="layui-font-12 layui-font-gray">FAQ</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="changelog.html" tppabs="http://www.layui.com/doc/base/changelog.html">
                <span>更新日志 </span>
                <span class="layui-font-12 layui-font-gray">changelog</span>
                
                  <span class="layui-badge-dot"></span>
                
              </a>
            </div>
          </li>
        </ul>
      </li>
      
      <li class="layui-menu-item-group" lay-options="{type: 'group', isAllowSpread: true}">
        <div class="layui-menu-body-title">
          页面元素
        </div>
        <hr>
        <ul>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/layout.html" tppabs="http://www.layui.com/doc/element/layout.html">
                <span>布局 </span>
                <span class="layui-font-12 layui-font-gray">栅格 后台管理布局</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/color.html" tppabs="http://www.layui.com/doc/element/color.html">
                <span>颜色 </span>
                <span class="layui-font-12 layui-font-gray">主色调 颜色搭配</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/icon.html" tppabs="http://www.layui.com/doc/element/icon.html">
                <span>图标 </span>
                <span class="layui-font-12 layui-font-gray">iconfont 字体图标</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/anim.html" tppabs="http://www.layui.com/doc/element/anim.html">
                <span>动画 </span>
                <span class="layui-font-12 layui-font-gray">内置 CSS3 动画</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/button.html" tppabs="http://www.layui.com/doc/element/button.html">
                <span>按钮 </span>
                <span class="layui-font-12 layui-font-gray">button</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/form.html" tppabs="http://www.layui.com/doc/element/form.html">
                <span>表单 </span>
                <span class="layui-font-12 layui-font-gray">form 元素集合</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/nav.html" tppabs="http://www.layui.com/doc/element/nav.html">
                <span>导航 </span>
                <span class="layui-font-12 layui-font-gray">nav 面包屑</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/menu.html" tppabs="http://www.layui.com/doc/element/menu.html">
                <span>菜单 </span>
                <span class="layui-font-12 layui-font-gray">menu 基础菜单</span>
                
                  <span class="layui-badge-dot"></span>
                
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/tab.html" tppabs="http://www.layui.com/doc/element/tab.html">
                <span>选项卡 </span>
                <span class="layui-font-12 layui-font-gray">Tabs 切换</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/progress.html" tppabs="http://www.layui.com/doc/element/progress.html">
                <span>进度条 </span>
                <span class="layui-font-12 layui-font-gray">progress</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/panel.html" tppabs="http://www.layui.com/doc/element/panel.html">
                <span>面板 </span>
                <span class="layui-font-12 layui-font-gray">panel 卡片 折叠</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/table.html" tppabs="http://www.layui.com/doc/element/table.html">
                <span>表格 </span>
                <span class="layui-font-12 layui-font-gray">静态 table</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/badge.html" tppabs="http://www.layui.com/doc/element/badge.html">
                <span>徽章 </span>
                <span class="layui-font-12 layui-font-gray">小圆点  小边框</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/timeline.html" tppabs="http://www.layui.com/doc/element/timeline.html">
                <span>时间线 </span>
                <span class="layui-font-12 layui-font-gray">timeline</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../element/auxiliar.html" tppabs="http://www.layui.com/doc/element/auxiliar.html">
                <span>辅助 </span>
                <span class="layui-font-12 layui-font-gray">引用 字段集 横线等</span>
              </a>
            </div>
          </li>
        </ul>
      </li>
      
      <li class="layui-menu-item-group" lay-options="{type: 'group', isAllowSpread: true}">
        <div class="layui-menu-body-title">
          内置模块
        </div>
        <hr>
        <ul>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/layer.html" tppabs="http://www.layui.com/doc/modules/layer.html">
                <span>弹出层 </span>
                <span class="layui-font-12 layui-font-gray">layer</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/laydate.html" tppabs="http://www.layui.com/doc/modules/laydate.html">
                <span>日期与时间选择 </span>
                <span class="layui-font-12 layui-font-gray">laydate</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/laypage.html" tppabs="http://www.layui.com/doc/modules/laypage.html">
                <span>分页 </span>
                <span class="layui-font-12 layui-font-gray">laypage</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/laytpl.html" tppabs="http://www.layui.com/doc/modules/laytpl.html">
                <span>模板引擎 </span>
                <span class="layui-font-12 layui-font-gray">laytpl</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/table.html" tppabs="http://www.layui.com/doc/modules/table.html">
                <span>数据表格 </span>
                <span class="layui-font-12 layui-font-gray">table</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/form.html" tppabs="http://www.layui.com/doc/modules/form.html">
                <span>表单 </span>
                <span class="layui-font-12 layui-font-gray">form</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/upload.html" tppabs="http://www.layui.com/doc/modules/upload.html">
                <span>文件上传 </span>
                <span class="layui-font-12 layui-font-gray">upload</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/dropdown.html" tppabs="http://www.layui.com/doc/modules/dropdown.html">
                <span>下拉菜单 </span>
                <span class="layui-font-12 layui-font-gray">dropdown</span>
                
                  <span class="layui-badge-dot"></span>
                
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/transfer.html" tppabs="http://www.layui.com/doc/modules/transfer.html">
                <span>穿梭框 </span>
                <span class="layui-font-12 layui-font-gray">transfer</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/tree.html" tppabs="http://www.layui.com/doc/modules/tree.html">
                <span>树形组件 </span>
                <span class="layui-font-12 layui-font-gray">tree</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/colorpicker.html" tppabs="http://www.layui.com/doc/modules/colorpicker.html">
                <span>颜色选择器 </span>
                <span class="layui-font-12 layui-font-gray">colorpicker</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/element.html" tppabs="http://www.layui.com/doc/modules/element.html">
                <span>常用元素操作 </span>
                <span class="layui-font-12 layui-font-gray">element</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/slider.html" tppabs="http://www.layui.com/doc/modules/slider.html">
                <span>滑块 </span>
                <span class="layui-font-12 layui-font-gray">slider</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/rate.html" tppabs="http://www.layui.com/doc/modules/rate.html">
                <span>评分 </span>
                <span class="layui-font-12 layui-font-gray">rate</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/carousel.html" tppabs="http://www.layui.com/doc/modules/carousel.html">
                <span>轮播 </span>
                <span class="layui-font-12 layui-font-gray">carousel</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="layedit.html" tppabs="http://www.layui.com/doc/modules/layedit.html">
                <span>富文本编辑器 </span>
                <span class="layui-font-12 layui-font-gray">layedit</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/flow.html" tppabs="http://www.layui.com/doc/modules/flow.html">
                <span>流加载 </span>
                <span class="layui-font-12 layui-font-gray">flow</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/util.html" tppabs="http://www.layui.com/doc/modules/util.html">
                <span>工具组件 </span>
                <span class="layui-font-12 layui-font-gray">util</span>
              </a>
            </div>
          </li>
          <li class="">
            <div class="layui-menu-body-title">
              <a href="../modules/code.html" tppabs="http://www.layui.com/doc/modules/code.html">
                <span>代码高亮显示 </span>
                <span class="layui-font-12 layui-font-gray">code</span>
              </a>
            </div>
          </li>
        </ul>
      </li>
    </ul>
  </div>
  <div class="layui-hide-v"> - </div>
</div>

  
  <div class="layui-col-md9 site-content">
    <h1 class="site-h1">模块规范</h1>
    <blockquote class="layui-elem-quote">
      layui 定义了一套更轻量的模块规范。并且这种方式在经过了大量的实践后，成为 layui 最核心的模块加载引擎。
    </blockquote>
    
    
    <div class="site-title">
      <fieldset><legend><a name="before">预先加载模块</a></legend></fieldset>
    </div>
    <div class="site-text">
      <p>layui 通过 use 方法加载模块。当你的 JS
      需要用到 layui 模块的时候，且避免到处写 layui.use() 的麻烦。你应该在最外层如此定义： </p>
      <pre class="layui-code">
layui.use(['form', 'upload'], function(){  //如果只加载一个模块，可以不填数组。如：<em>layui.use('form')</em>
  var form = layui.form //获取form模块
  ,upload = layui.upload; //获取upload模块
  
  //监听提交按钮
  form.on('submit(test)', function(data){
    console.log(data);
  });
  
  //实例化一个上传控件
  upload({
    url: '上传接口url'
    ,success: function(data){
      console.log(data);
    }
  })
});
      </pre>
    </div>
    
    <div class="site-title">
      <fieldset><legend><a name="space">模块命名空间</a></legend></fieldset>
    </div>
    <div class="site-text">
      <p>layui 的模块对象会绑定在 layui 对象下，内部由 layui.define() 方法来完成。每个模块都有一个特定命名，且无法被占用。所以你无需担心模块的空间被污染，除非你主动 delete layui['模块名']。调用模块可通过 layui.use() 来实现，再通过 layui 对象获得模块对象。如：</p>
      <pre class="layui-code">
layui.use(['layer', 'laypage', 'laydate'], function(){
  var layer = layui.layer //获得 layer 模块
  ,laypage = layui.laypage //获得 laypage 模块
  ,laydate = layui.laydate; //获得 laydate 模块
  
  //使用模块
});      
      </pre>
      <p>我们推荐你将所有的业务代码都写在一个大的 use 回调中，而不是将模块接口暴露给全局，比如下面的方式我们是极不推荐的：</p>
      <pre class="layui-code">
//强烈不推荐下面的做法
var laypage, laydate;
layui.use(['laypage', 'laydate'], function(){
  laypage = layui.laypage;
  laydate = layui.laydate;
});
      </pre>
      <p>你之所以想使用上面的错误方式，是想其它地方使用不在执行一次 layui.use？但这种理解本身是存在问题的。因为如果一旦你的业务代码是在模块加载完毕之前执行，你的全局对象将获取不到模块接口，因此这样用不仅不符合规范，还存在报错风险。建议在你的 js 文件中，在最外层写一个 layui.use 来加载所依赖的模块，并将业务代码写在回调中，这样还可以确保 html 文档加载完毕再执行回调代码。</p>
    </div>
    
    <div class="site-title">
      <fieldset><legend><a name="extend">扩展一个 layui 模块</a></legend></fieldset>
    </div>
    <div class="site-text">
      <p>layui 官方提供的模块有时可能还无法满足你，或者你试图按照layer的模块规范来扩展一个模块。那么你有必要认识<em>layui.define()</em>方法，相信你在文档左侧的“底层方法”中已有所阅读。下面就让我们一起扩展一个 layui 模块吧：</p>
      <p>第一步：确认模块名，假设为：<em>mymod</em>，然后新建一个<em>mymod.js</em> 文件放入项目任意目录下（注意：不用放入layui目录）</p>
      <p>第二步：编写 mymod.js 如下：</p>
      <pre class="layui-code">
/**
  扩展一个 mymod 模块
**/      
 
layui.define(function(exports){ //提示：模块也可以依赖其它模块，如：layui.define('mod1', callback);
  var obj = {
    hello: function(str){
      alert('Hello '+ (str||'mymod'));
    }
  };
  
  //输出 mymod 接口
  exports('mymod', obj);
});    
      </pre>
      <p>第三步：设定扩展模块所在的目录，然后就可以在别的JS文件中使用了</p>
      <pre class="layui-code">
//config的设置是全局的
layui.config({
  base: '/res/js/' //假设这是你存放拓展模块的根目录
}).extend({ //设定模块别名
  mymod: 'mymod' //如果 mymod.js 是在根目录，也可以不用设定别名
  ,mod1: 'admin/mod1' //相对于上述 base 目录的子目录
});
 
//你也可以忽略 base 设定的根目录，直接在 extend 指定路径（<span style="color: #FF5722;">主要：该功能为 layui 2.2.0 新增</span>）
layui.extend({
  mod2: '{/}http://cdn.xxx.com/lib/mod2' // {/}的意思即代表采用自有路径，即不跟随 base 路径
})
 
//使用拓展模块
layui.use(['mymod', 'mod1'], function(){
  var mymod = layui.mymod
  ,mod1 = layui.mod1
  ,mod2 = layui.mod2;
  
  mymod.hello('World!'); //弹出 Hello World!
});
      </pre>
      <p>大体上来说，layui 的模块定义很类似 Require.js 和 Sea.js，但跟他们又有着明显的不同，譬如在接口输出等地方。</p>
    </div>
    
    <div class="site-title">
      <fieldset><legend><a name="other">结语</a></legend></fieldset>
    </div>
    <div class="site-text">
      <p>其实关于模块的核心，就是 layui.js 的两个底层方法：一个用于定义模块的 <em>layui.define()</em>，一个加载模块的 <em>layui.use()</em>。</p>
    </div>
    
    <div class="layui-elem-quote">
  <p>layui - 在每一个细节中，用心与你沟通</p>
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