- https://blog.csdn.net/tmjianjun/article/details/87399119
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- https://blog.csdn.net/weixin_44547508/article/details/99670383
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- https://blog.csdn.net/weixin_34260991/article/details/85568382
- https://www.cnblogs.com/ball-head/archive/2009/10/16/1584761.html
- https://docs.microsoft.com/zh-cn/dotnet/api/system.dynamic.dynamicmetaobject.runtimetype?view=net-5.0
- https://docs.microsoft.com/zh-cn/dotnet/api/system.type?view=net-5.0
- https://docs.microsoft.com/zh-cn/dotnet/api/system.dbnull?view=net-5.0
- https://zhidao.baidu.com/question/652277511472851565.html