下面程序的结果是includeclass A{int a;public:A( ):a(1){}void showa( ){cout 下面程序的结果是 #include<iostream.h> class A { int a; public: A( ):a(1){} void showa( ){cout<<a;} }; class B { int a; public: B( ) :a(2) {}A.1B.2C.3D.程序有错误
下面程序的结果是includeclass A{int a;public:A( ):a(1){}void showa( ){cout<
下面程序的结果是 #include<iostream.h> class A { int a; public: A( ):a(1){} void showa( ){cout<<a;} }; class B { int a; public: B( ) :a(2) {}
A.1
B.2
C.3
D.程序有错误
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下面程序的结果是includeclass A{int a;public:A( ) :a(1) {}void showa ( ) {cout 下面程序的结果是 #include<iostream.h> class A { int a; public: A( ) :a(1) {} void showa ( ) {cout < < a;} }; class B { int a; public: B( ) :a(2) {} void showa( ) {cout < < a;} }; class C: public A, public B { t a; public: C( ) :a(3) {} void showa( ) {cout < < a;} }; void main( ) { C c; c.showa( ) ; }A.1B.2C.3D.程序有错误
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下面程序的运行结果是includeclass base{protected:int a;public:base( ){cout 下面程序的运行结果是 #include<iostream.h> class base{ protected: int a; public: base( ){cout<<"0";} }; class basel:virtual base { public: base1( ){cout<<"1";} }; class base2:virtual base{ public:A.123B.3120C.312D.3012
下面程序的结果是includeclass A { int a;public: A():a(1){} void showa(){cout 下面程序的结果是 #include<iostream.h> class A { int a; public: A():a(1){} void showa(){cout<<a;} }; class B { int a; public: B():a(2){} void showa(){cout<<a;} }; class C:public A,public B { int a; public: C():a(3) ㈠ voidshowa(){cout<<a;} }; voidmain() { C c; c.showa(); }A.1B.2C.3D.程序有错误
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