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微信小程序的一些不够美的地方
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<p>前段时间(<code>2016年9月22日</code>),腾讯释出了微信小程序的测试版,各路开发者纷纷出台攻略,一举攻占这块<del>高地</del>。</p>
<p>随着各路牛人,纷至沓来的对微信小程序进行各种各样的测试与编制,如今这一块已经没有什么很高深的技术难度了。想要学习微信小程序的,读懂官方释出的<a href="https://mp.weixin.qq.com/debug/wxadoc/dev/index.html" target="_blank" rel="external">开发文档</a>,基本就能应对大部分的开发需求了。</p>
<p>当然,由于目前微信小程序还处于内侧阶段,并不是所有开发者都有自由创建微信小程序的权限。但是这并不能难倒<del>无所不能的</del>开发群众,一个<a href="https://github.com/gavinkwoe/weapp-ide-crack" target="_blank" rel="external">IDE破解版</a>应运而生。</p>
<p>本篇文章的重点并不是要介绍微信小程序是如何开发与运作的,下面将给出本人在攻略微信小程序的过程中遇到的一些问题,同时结合目前网上出现的一些其他疑难杂症,做一个简单的阐述。</p>
<p>首先,微信小程序的项目文件看起来是前端文件,但实际上并不完全是。其页面文件格式为<code>wxml</code>,样式文件为<code>wxss</code>。或许是仿照<code>react native</code>的<code>JSX</code>,也或许是参考了<code>vue.js</code>的模板格式,微信小程序现在是不支持HTML的。这意味着如果要实现微信小程序的页面,需要对HTML/CSS/JS进行重写。没有DOM,这也稍稍提升了一些难度,然而这并不是什么太大的问题,参照官方给出的手册,一个个照着修改就行了。</p>
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<p>不支持<code>a</code>标签的链接跳转。即使是相对链接,也无法进行跳转。<em>a标签是HTML标准标签</em></p>
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<p>WXML和HTML的语法相差还是蛮大的,一股浓浓的自定义标签的风格跃然纸上,令人瞠目结舌。</p>
<p>样式控制文件为<code>wxss</code>,跟常规的<code>css</code>有些类似,但却不是一回事。WXSS或许是参考了<code>sass</code>/<code>less</code>/<code>stylus</code>,页面实际渲染的时候这个文件不会直接读取,而是会编译之后再进行样式的呈现。粗看了一下,发现里面有个度量单位是<code>rpx</code>,看起来还是很有意思的。几经测试,发现这个就是一个<em>黑科技</em>,变相的封装了一个<code>rem</code>风格的单位而已。另外,WXSS的选择器<strong>不能级联</strong>。于是,这就解释了为什么我们看到的WXSS文件里面都是单个选择器。</p>
<p>微信小程序的源码大小有一定的限制,限制为<code>1M</code>,超过了传不上去。通过<code>wx.request</code>接口获取到的数据大小也不会超过1M。</p>
<p>图文混排有很严重的短板。究其原因,是因为微信小程序不支持WebView,其自带的view和text不能做图文混排,所以想要图文混排效果,就要通过其他方式来实现了(比如绝对定位)。</p>
<p>大千世界,芸芸众生,微信小程序一经推出,牵动了大量开发人员的神经。但是归根结底,并不会对目前的市场造成太大的影响,大家该干嘛还是干嘛,戒骄戒躁。</p>
<hr>
<p>微信小程序部分参考资料:</p>
<ul>
<li><a href="https://github.com/Aufree/awesome-wechat-weapp" target="_blank" rel="external">微信小程序资源汇总整理</a></li><li><a href="https://mp.weixin.qq.com/debug/wxadoc/dev/index.html" target="_blank" rel="external">官方开发文档</a></li></ul>
<hr>
<p><strong>更正</strong>:微信WXSS语法支持级联CSS。 2016.10.9</p>
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ds.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') + '//static.duoshuo.com/embed.js';
ds.charset = 'UTF-8';
(document.getElementsByTagName('head')[0]
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})();
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