如何以跨平台方式在ASP.NET Core中的.json配置文件中存储文件路径？

试试看：

                    // IWebHostEnvironment _webHost
                    // IConfiguration Configuration
                    var listOfPath = Configuration["my-path"].ToString()
                        .Split("\\", StringSplitOptions.RemoveEmptyEntries);

                    var uploadPath = Path.Combine(_webHost.WebRootPath );
                    foreach (var folders in listOfPath)
                    {
                        uploadPath = Path.Combine(uploadPath, folders);
                    }