【CLR的八大特性】
Code that you develop with a language compiler that targets the runtime is called managed code.
CLR的八大特性：
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The ability to easily use components developed in other languages.（跨语言）
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Extensible types provided by a class library.（类库）
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Language features such as inheritance, interfaces, and overloading for object-oriented programming.（扩展语言特性）
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Support for explicit free threading that allows creation of multithreaded, scalable applications.（线程支持）
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Support for structured exception handling.（结构化异常）
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Support for custom attributes.（自定义属性）
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Garbage collection.（垃圾回收）
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Use of delegates instead of function pointers for increased type safety and security. （隐藏指针）
