如何在微信小程序内使用外部字体

@font-face {
  font-family: "kaiti";
  src: url("https://spkf-zsxn-prod.s3.cn-north-1.amazonaws.com.cn/pic/livecenter/kaiti.ttf");
}
.test {
  font-family: "kaiti";
}

wx.loadFontFace({
  family: "Bitstream",
  source:
    'url("https://spkf-zsxn-prod.s3.cn-north-1.amazonaws.com.cn/pic/livecenter/kaiti.ttf")',
  success: (msg) => {
    console.log(msg);
  },
});

.test {
  font-family: "Bitstream";
}