服務器前提條件：
1、IIS7.5及以上
2、.net framework 4.5及以上
3、應用程序的托管管道模式必須為集成模式
4、需要開啟websocket協議
請在 Web.config 中設置以下配置開關:
<system.web>
<httpRuntime targetFramework="4.5" />
</system.web>
關於.NET WebSocket connection to 'ws://xxx' failed: Error during WebSocket handshake: Unexpected response code: 200
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