Assuming I have an instance of an object that I know belongs to a subclass of a certain subtype passed to me through a reference of a supertype in C#, I'm used to seeing typecasting done this Java-like way (Assuming "reference" is of the supertype):Assuming I have an instance of an object that I
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C＃：“（子类型）数据”和“数据作为子类型”类型转换之间有什么区别？
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