有如下类定义: class AA { im a: public: int getRefconst{return&a;}//① int getValueconst{return a;}//② void set(int n)const{a=n;}//③ friend void show(AA aA.const{couta;}//④ }; 其中四个函数的定义中正确的是( )。A.①B.②C.③D.④
有如下类定义: class AA { im a: public: int getRefconst{return&a;}//① int getValueconst{return a;}//② void set(int n)const{a=n;}//③ friend void show(AA aA.const{cout<<a;}//④ }; 其中四个函数的定义中正确的是( )。
A.①
B.②
C.③
D.④
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