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">&#xe679;</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');