A.DeCr&operator--(int);
B.DeCr operator--(DeCr&,int);
C.friend DeCr&operator--(DeCr&);
D.friend DeCr operator--(DeCr&,int);
[单选题]将前缀运算符“--”重载为非成员函数,下列原型中,能正确用于类中说明的是( )。A.Decr&operator--{int};B.Decroperator--(Decr&,int);C.friend Decr& cperator--(Decr&);D.friend Decr operacor--(Decr&,int);
[单选题]将前缀运算符“--”重载为非成员函数,下列原型中,能正确用于类中说明的是( )。A.Deer&operator--(int);B.Deeropera
[单选题]将前缀运算符“一一”重载为非成员函数,下列原型中,能正确用于类中说明的是( )。A.Deer&operator一一{int};B.Decroperator一一(Decr&,int);C.friendDeer&cperator一一(Deer&);D.friendDeeroperacor一一(Deer&,int);
[单选题]( 14 )将前缀运算符 “ -- ” 重载为非成员函数,下列原型中,能正确用于类中说明的是A. ) Decr& operator --(int);B. ) Decr operator --( Decr&,int);C. ) friend Decr& operator --(Decr&);D. ) frlend Decr operator --(Decr&,int);
[单选题]将运算符“+”重载为非成员函数,下列原型声明中,错误的是( )。A.MyClock operator+(MyClock,long);B.MyClock operator+(MyClock,MyClock);C.MyClock operator+(long,long);D.MyClock operator+(long,MyClock);
[单选题]将运算符“+”重载为非成员函数,下列原型声明中,错误的是( )。A.MyClockoperator+(MyClock,long);B.MyClock
[单选题]( 33 )将运算符 “ + ” 重载为非成员函数,下列原型声明中,错误的是A. ) MyClock operator + (MyClock,long);B. ) MyClock operator + (MyClock,MyClock);C. ) MyClock operator + (long,long);D. ) MyClock operator + (long,MyClock);
[单选题]下列是重载为非成员函数的运算符函数原型,其中错误的是( )。A.Fraction operator+(Fraction,Fraction);B.Fraction operator-(Fraction);C.Fraction&operator=(Fraction&,Fraction);D.Fraction&operator+=(Fraction&,Fraction);
[单选题]下列是重载为非成员函数的运算符函数原型,其叶错误的是()。A.Fraction operator+(Fraction,Fraction);B.Fraction operator-(Fraction);C.Fraction&operator=(Fraction&,Fraction);D.Fraction&operator+=(Fraction&,Fraction);
[单选题]下面是重载为非成员函数的运算符函数原型,其中错误的是A.Fraction operator+(Fraction,Fraction);B.Fraction operator-(Fraction);C.Fraction& perator=(Fraction&,Fraction);D.Fraction& operator+=(Fraction&,Fraction);