在ASP.NET Minimal API中传输持续流可以使用C#异步方法和HTTP Chunked传输编码。以下是一个示例，该示例将在HTTP响应中发送无限流（每隔1秒发送一个数字）并在通过Ctrl + C停止应用程序时停止：

public static async Task Main()
{
    await using var app = WebApplication.Create();
    app.MapGet("/", async (http) =>
    {
        http.Response.Headers.Add("Transfer-Encoding", "chunked");
        http.Response.Headers.Add("Content-Type", "text/plain; charset=utf-8");

        int count = 0;
        while (!http.RequestAborted.IsCancellationRequested)
        {
            var data = Encoding.UTF8.GetBytes((count++).ToString() + "\n");
            await http.Response.Body.WriteAsync(data);
            await http.Response.Body.FlushAsync();
            await Task.Delay(TimeSpan.FromSeconds(1));
        }
    });

    await app.RunAsync();
}