若为类MyClass重载运算符+,下列声明中错误的是?
A、friend MyClass operator+(double, double);
B、friend MyClass operator+(double, MyClass);
C、friend MyClass operator+(MyClass, double);
D、friend MyClass operator+(MyClass, MyClass);
A、friend MyClass operator+(double, double);
B、friend MyClass operator+(double, MyClass);
C、friend MyClass operator+(MyClass, double);
D、friend MyClass operator+(MyClass, MyClass);
第1题
A.myclass operator ++();
B.myelass& operator ++();
C.myclass operator++(int);
D.myclass& operator++(int);
第2题
A.friendistream&operator>>(istream&is,MyClass&a);
B.friendistream&operator>>(istream&is,MyClassa);
C.istream&operalor>>(istream&is,MyClass&a);
D.istream&operator>>(istream&is,Myclassa);
第3题
A.friendistream&operator>>(istream&is,MyClass&a);
B.friendistream&operator>>(istream&is,MyClassa);
C.istream&operalor>>(istream&is,MyClass&a);
D.istream&operator>>(istream&is,Myclassa);
第4题
A.friend istream& operator>>(istream&is,MyClass&A.;
B.friend istream&operator>>(istream&is,MyClass A.;
C.istream&operator>>(istream&is,MyClass&A.;
D.istream&operator>>(istream&is,MyClass A.;
第5题
A、friend MyNumber operator/(int, float);
B、friend MyNumber operator/(float, MyNumber);
C、friend MyNumber operator/(MyNumber, int);
D、friend MyNumber operator/(MyNumber, MyNumber);
第6题
A ) MyClass operator*(double,double);
B ) MyClass operator*(double,MyClass);
C ) MyClass operator*(MyClass,double);
D ) MyClass operator*(MyClass,MyClass);
第7题
A.MyClass operator * (double, double);
B.MyClass operator * (double, MyClass);
C.MyClass operator * (MyClass, double);
D.MyClass operator * (MyClass, MyClass);
第8题
A.MyClass operator * (double, double);
B.MyClass operator * (double, MyClass);
C.MyClass operator * (MyClass, double);
D.MyClass operator * (MyClass, MyClass);
第9题
A.TestClass operator *(MyClass,double);
B.TestClass operator *(double,MyClass);
C.TestClass operator *(double,double);
D.TestClass operator *(MyClass,MyClass);
第10题
A.MyClockoperator+(MyClock,long);
B.MyClockoperator+(MyClock,MyCloek);
C.MyCloekoperator+(long,long);
D.MyClockoperator+(long,MyCloek):
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