Ref Class vs Ref Struct，有什么区别？

Question

public struct StructHouse{
public int number;
}


public class ClassHouse{
public int number;
}


public class Test{
public TestForStruct testForStruct;
public ClassHouse classHouse = new ClassHouse();
public StructHouse structHouse = new StructHouse();

SendRef1(ref classHouse);
testForStruct.SendRef2(ref structHouse);
}

public class TestForStruct{
public StructHouse structHouse;

public void (ref classHouse);
public void SendRef2(ref StructHouse structHouse){
this.structHouse = structHouse;
this.structHouse.number = 1;      //THIS DOESN'T UPDATE THE VALUE FOR 'Test'
//BUT IT DOES UPDATE IF I SEND REF CLASS INSTEAD OF REF STRUCT
}

e：如果我在'SendRef1'中更改'number'的参考值，则会在Test类中更新该值，但在更改SendRef2中的值时它不会更新。有人可以解释一下吗？

提前致谢。

Answer 1

这一行正在复制结构。

this.structHouse = structHouse;

您只能在副本上更改number的值。