object、string也算类 | C# 类型关键字 | .NET 类型 | | --- | --- | | [`object`](https://learn.microsoft.com/zh-cn/dotnet/csharp/language-reference/builtin-types/reference-types#the-object-type) | [System.Object](https://learn.microsoft.com/zh-cn/dotnet/api/system.object) | | [`string`](https://learn.microsoft.com/zh-cn/dotnet/csharp/language-reference/builtin-types/reference-types#the-string-type) | [System.String](https://learn.microsoft.com/zh-cn/dotnet/api/system.string) | | [`dynamic`](https://learn.microsoft.com/zh-cn/dotnet/csharp/language-reference/builtin-types/reference-types#the-dynamic-type) | [System.Object](https://learn.microsoft.com/zh-cn/dotnet/api/system.object) |