code: function openAppByScheme(scheme) {
    if (device.isIOS) {
      window.location.href = scheme;
    } else {
      var iframe = doc.createElement('iframe');
      iframe.style.display = 'none';
      iframe.src = scheme;
      body.appendChild(iframe);
      setTimeout(function() {
        iframe && iframe.parentNode && iframe.parentNode.removeChild(iframe);
      }, 2000);
    }
  }
docs: 通过scheme唤起APP
  @param  {String} scheme [app打开协议]