uniapp 跳转支付宝支付

let authUrl = `alipays://platformapi/startapp?saId=10000007&qrcode=${decodeURI(
  res.code_url
)}`;
if (uni.getSystemInfoSync().platform == "ios") {
  authUrl = `alipay://platformapi/startapp?saId=10000007&qrcode=${decodeURI(
    res.code_url
  )}`;
  plus.runtime.openURL(authUrl);
}
plus.runtime.openURL(authUrl, function (res) {
  uni.showToast({
    icon: "none",
    title: "请安装支付宝之后再进行支付！",
  });
});