用字体实现iconfont图标技巧

   如何制作字体文件？下面手把手教学。
   1、在 https://www.iconfont.cn/ 新建自己的字体库，图标都添加好
   2、然后你的字体库中有如下字符，找到 .ttf 结尾的链接，然后用浏览器下载
   @font-face {
      font-family: 'hxicon';
      src: url('//at.alicdn.com/t/font_2009392_p959zum1sck.eot');
      src: url('//at.alicdn.com/t/font_2009392_p959zum1sck.eot?#iefix') format('embedded-opentype'),
      url('//at.alicdn.com/t/font_2009392_p959zum1sck.woff2') format('woff2'),
      url('//at.alicdn.com/t/font_2009392_p959zum1sck.woff') format('woff'),
      url('//at.alicdn.com/t/font_2009392_p959zum1sck.ttf') format('truetype'),
      url('//at.alicdn.com/t/font_2009392_p959zum1sck.svg#hxicon') format('svg');
   }

   3、打开网址ttf转base64字符的网址： https://www.giftofspeed.com/base64-encoder/
   4、上传你的刚下载的ttf文件，然后复制转换好的base64字符串，新建一个iconfont.css文件

   5、然后把 base64 粘贴到下面字符串中，然后设置一个字体名称：font-family:"自定义字体名";
   @font-face {
      font-family: "hxicon";
      src: url(data:font/truetype;charset=utf-8;base64,转换的base64内容) format('truetype');
   }
   6、设置一个唯一的类名方便使用 .hxicon
   .hxicon{
       font-family:"hxicon" !important;
       font-size:24px;font-style:normal;
       -webkit-font-smoothing: antialiased;
       -webkit-text-stroke-width: 0.2px;
       -moz-osx-font-smoothing: grayscale;
   }
   7、最后则再项目中App.vue中引入iconfont.css文件
   <style>
       @import "./font/iconfont.css";
   </style>
   8、在任意组件中使用
   <view class="hxicon"></view>

   9、这教程就完成了！
   10、下面未注释部分为实例

   如果是app端时，还需在 javascript 中加入

   var domModule = weex.requireModule('dom');
   var b64 = 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   domModule.addRule('fontFace', {
       'fontFamily': "hxcion",
       'src': "url('data:font/truetype;charset=utf-8;base64,"+b64+"')"
   });
   var he = require('he');