@BingoXuan 感谢大佬回复，可能是我表述有问题。应用场景是物联网设备通过 mqtt 协议连接并发送数据到服务器，然后服务器转发数据到 web 端（通过 websocket ）。这个中间转发过程没有好的思路

目前在用 Chorme 看。

onlyoffice

+1

@opengps 如果没有.net core 出来热闹已波，可能在国内互联网环境下，.net 确实要凉的差不多了。

自建 gitlab，同时同步 gitee 当备份。避免哪天服务器崩掉了

C# 控制台出来间距刚刚好，打印出来就是一个二维码。

static void Main(string[] args)
{
string base64 = "cXJjb2RlMTExMTExMTAxMDExMDExMDAwMDAwMDExMTExMTExMDAwMDAxMDEwMDEwMDAxMTAwMDEwMTAwMDAwMTEwMTExMDEwMTExMTAwMTAxMDEwMDAxMDExMTAxMTAxMTEwMTAwMTEwMDAwMDExMTAxMDEwMTExMDExMDExMTAxMDAxMDEwMDAxMDEwMTAwMTAxMTEwMTEwMDAwMDEwMTAwMTAxMDAwMTAwMDAxMDAwMDAxMTExMTExMTAxMDEwMTAxMDEwMTAxMDExMTExMTEwMDAwMDAwMDEwMTExMDAxMTExMTAwMDAwMDAwMDAwMTExMDEwMTAwMDAwMDEwMDAwMDExMTAwMTExMTAxMDExMDEwMTEwMTEwMDAxMTAxMDEwMTExMDEwMDEwMDAxMTEwMTEwMDAwMTAwMTAwMDExMDAxMDEwMDExMTAxMTExMTExMDExMTExMTAxMDEwMDAxMDEwMTExMTAxMDExMTAwMDAxMDExMTAxMDAxMTEwMTAxMDAwMDAxMDAxMDEwMTAwMTAxMTAxMDAxMTExMTAwMTEwMDExMTExMDAxMDAwMDEwMTAwMTEwMDEwMDAwMDEwMDExMDAxMDAxMTEwMTAxMTAwMTAxMDEwMDAxMTAwMDAwMTAwMDAwMDAxMDEwMTEwMDEwMDAxMTAxMDAxMTAxMTEwMDAwMDAxMDEwMDAwMTAxMDAwMTAwMDExMDExMDEwMDAxMDEwMTAwMDAxMDExMTAwMDAxMTExMDAxMDAwMDExMDAxMDAwMDEwMDAxMTEwMDAxMDAxMDExMTExMTExMTExMTAwMDAwMDAwMDAxMTEwMDEwMTAwMDExMDAwMTEwMDExMTExMTExMDAwMDAxMDAxMTAxMTEwMTAxMTExMDEwMDAwMDEwMDEwMDExMDExMDEwMTAwMDEwMDAxMTAxMTEwMTAxMTExMDEwMDEwMDAxMTExMTExMTAxMDExMTAxMDEwMTAxMDAwMDExMDAxMDEwMDAwMDEwMTExMDEwMTEwMTAxMTEwMTAwMDExMDEwMTEwMTAwMDAwMTAwMDExMDExMTAxMDEwMTAwMTAwMTAxMTExMTExMDAxMTAxMTEwMDAwMTAxMTAwMTEwMA==";
string line = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
if (string.IsNullOrEmpty(line))
{
Console.WriteLine("Cannot convert base64 to string.");
return;
}
line = line.Replace("qrcode", "");
int square = (int)Math.Sqrt(line.Length);
if (square == 0 || square * square != line.Length)
{
Console.WriteLine("Cannot find square.");
return;
}
for (int i = 1; i <= line.Length; i++)
{
Console.Write(line[i - 1] == '1' ? "█" : " ");
if (i % square == 0 && i != 0)
{
Console.Write(Environment.NewLine);
}
}
Console.ReadKey(false);
}

https://github.com/withsalt/IflySdk
讯飞的语音识别还是很吊的

onlyoffice 自己搭建一个服务器就行了。

树莓派

腾讯的：
Category Test Result
HDParm Disk Read 12.67 MB/s
HDParm Cached Disk Read 100.43 MB/s
DD Disk Write 40.8 MB/s
FIO 4k random read IOPS ( KB/s)
FIO 4k random write IOPS ( KB/s)
IOZone 4k read 5471 KB/s
IOZone 4k write 1561 KB/s
IOZone 4k random read 5860 KB/s
IOZone 4k random write 1582 KB/s
-----------------------------------------------------------------------
华为的：
Category Test Result
HDParm Disk Read 156.06 MB/s
HDParm Cached Disk Read 190.75 MB/s
DD Disk Write 164 MB/s
FIO 4k random read 5776 IOPS (23107 KB/s)
FIO 4k random write 7243 IOPS (28975 KB/s)
IOZone 4k read 12447 KB/s
IOZone 4k write 6167 KB/s
IOZone 4k random read 10055 KB/s
IOZone 4k random write 5075 KB/s
-----------------------------------------------------------------------

腾讯的 1H2G 的学生机，华为的是 200 一年的学生机。相比之下腾讯机器真的是惨不忍睹。

树莓派+摄像头

面试看到这几个字估计就掉头了吧

https://s2.ax1x.com/2019/09/24/uFHnRU.jpg
已经用上了

arduino+人体传感器

49 包邮

安装 vs 的时候勾选 C#相关的和 Python 开发