$unique: unique-id;
$timestamp: '?t=#{$unique}';
// 编译时生成随机数,每次编译（发版）都不会缓存
// 小程序不能外链
@font-face {
  font-family: 'iconfont';
  src: url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.eot#{$timestamp}');

  /* IE9 */
  src: url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.eot#{$timestamp}#iefix') format('embedded-opentype'),
    /* IE6-IE8 */
    url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.woff#{$timestamp}') format('woff2'),
    url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.woff#{$timestamp}') format('woff'),
    /* chrome、firefox */
    url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.ttf#{$timestamp}') format('truetype'),
    /* chrome、firefox、opera、Safari, Android, iOS 4.2+*/
    url('https://cdn2.codesign.qq.com/icons/Q2kY5j31A70ExNd/latest/iconfont.svg#{$timestamp}#iconfont') format('svg');

  /* iOS 4.1- */
}