/// <summary>
/// 获取验证码
/// </summary>
/// <returns></returns>
public async Task <BitmapImage> GetCaptchaAsync()
{
var stream = await BiliClient.GetStreamFromWebAsync($"{Api.PASSPORT_CAPTCHA}?ts=${BiliFactory.GetNowSeconds()}");
if (stream != null)
{
var bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.StreamSource = stream;
bitmap.BeginInit();
return(bitmap);
}
return(new BitmapImage(new Uri("ms-appx:///Assets/captcha_refresh.png")));
}