当值类型被赋值给对象类型时,就会发生装箱(boxing)。那么当引用类型被赋值给对象时,是否也是一样呢?
当一个非对象类型被赋值时会发生什么?这也算是装箱吗?
int num=5;
object obj = num; //boxing
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MyClass my = new MyClass();
object obj = my; //what is name this convert (whethere is boxing?)