Maui Blazor Windows 显示本地图片新方法更简单快速 支持.Net 8.0 最新版本

目前仅Windows平台测试，安卓平台暂不支持，调用

AppDomain.CurrentDomain.BaseDirectory，直接储存图片到wwwroot里的images文件夹内，在razor里直接使用<img src="images/图片路径" />即可

        private void SetAvarta(){MainThread.BeginInvokeOnMainThread(async () =>{FileResult? photo = await MediaPicker.Default.PickPhotoAsync(new MediaPickerOptions{Title = "选择头像"});if (photo != null){string UserAvatarPath = "Avatar";string photoName = Guid.NewGuid().ToString() + Path.GetExtension(photo.FileName);string localFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "wwwroot", "images", UserAvatarPath, photoName);// 确保目录存在Directory.CreateDirectory(Path.GetDirectoryName(localFilePath) ?? string.Empty);// 保存文件到本地存储using Stream sourceStream = await photo.OpenReadAsync();using FileStream localFileStream = File.Create(localFilePath);await sourceStream.CopyToAsync(localFileStream);Debug.WriteLine($"File saved to: {localFilePath}");}});}