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<html lang=""><head>
<title>框架 · MINA</title>
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<h1 id="mina">MINA</h1><p>MINA(MINA IS NOT APP) 是在微信中开发<strong>小程序</strong>的框架。</p><p>MINA的目标是通过尽可能简单、高效的方式让开发者可以在微信中开发具有原生APP体验的服务。</p><p>MINA提供了自己的视图层描述语言WXML和WXSS，以及基于JavaScript的逻辑层框架，并在视图层与逻辑层间提供了数据传输和事件系统，可以让开发者可以方便的聚焦于数据与逻辑上。</p><h3 id="响应的数据绑定">响应的数据绑定</h3><p>MINA的核心是一个响应的数据绑定系统。</p><p>整个系统分为两块视图层(View)和逻辑层(App Service)</p><p>MINA可以让数据与视图保持同步非常简单。当做数据修改的时候，只需要在逻辑层修改数据，视图层就会做相应的更新。</p><p>通过这个简单的例子来看：</p><pre><code class="lang-html"><span class="hljs-comment"><!-- Thie is our View --></span>
<span class="hljs-tag"><<span class="hljs-name">view</span>></span> Hello {{name}}! <span class="hljs-tag"></<span class="hljs-name">view</span>></span>
<span class="hljs-tag"><<span class="hljs-name">button</span> <span class="hljs-attr">bindtap</span>=<span class="hljs-string">"changeName"</span>></span> Click me! <span class="hljs-tag"></<span class="hljs-name">button</span>></span></code></pre>
<pre><code class="lang-js"><span class="hljs-comment">// This is our App Service.</span>
<span class="hljs-comment">// This is our data.</span>
<span class="hljs-keyword">var</span> helloData = {
name: <span class="hljs-string">'WeChat'</span>
}
<span class="hljs-comment">// Register a Page.</span>
Page({
data: helloData,
changeName: <span class="hljs-function"><span class="hljs-keyword">function</span>(<span class="hljs-params">e</span>) </span>{
<span class="hljs-keyword">this</span>.setData({
name: <span class="hljs-string">'MINA'</span>
})
}
})</code></pre>
<ul><li>开发者通过MINA将逻辑层数据中的<code>name</code>与视图层的<code>name</code>进行了绑定，所以在页面一打开的时候会显示<code>Hello WeChat!</code>
</li>
<li>当点击按钮的时候，视图层会发送<code>changeName</code>的事件给逻辑层，逻辑层找到对应的事件处理函数
</li>
<li>逻辑层执行了<code>setData</code>的操作，将name从<code>weChat</code>变为<code>MINA</code>，因为该数据和视图层已经绑定了，从而视图层会自动响应改变为<code>Hello MINA!</code> 。
</li></ul>
<h3 id="页面管理">页面管理</h3><p>MINA管理了整个<strong>小程序</strong>的页面路由，可以做到页面间的无缝切换，并给以页面完整的生命周期。开发者需要做的只是将页面的数据，方法，生命周期函数注册进MINA中，其他的一切复杂的操作都交由MINA处理。</p><h3 id="基础组件">基础组件</h3><p>MINA提供了一套基础的组件，这些组件自带微信风格的样式以及特殊的逻辑，开发者可以通过组合基础组件，创建出强大的<strong>微信小程序</strong> 。</p><h3 id="丰富的api">丰富的API</h3><p>MINA提供丰富的微信原生API，可以方便的调起微信提供的能力，如获取用户信息，本地存储，支付功能等。</p>
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