/* wxss */

[@font-face](/user/font-face) {
    font-family: 'iconfont';  /* project id 540717 */
    src: url('//at.alicdn.com/t/font_540717_1da1ynkdlp4lsor.eot');
    src: url('//at.alicdn.com/t/font_540717_1da1ynkdlp4lsor.eot?#iefix') format('embedded-opentype'),
    url('//at.alicdn.com/t/font_540717_1da1ynkdlp4lsor.woff') format('woff'),
    url('//at.alicdn.com/t/font_540717_1da1ynkdlp4lsor.ttf') format('truetype'),
    url('//at.alicdn.com/t/font_540717_1da1ynkdlp4lsor.svg#iconfont') format('svg');
}
.su-icon {
    font-family:"iconfont" !important;
    font-size:16px;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: normal;
    /*vertical-align: middle;*/
}

/* wxml */

<view class="su-icon">&#xe622;</view>

你可以在组件和页面上都测试下。