有下列程序:includeusing namespace std;class TestClass{protected:TestClass(){cou 有下列程序: #include<iostream> using namespace std; class TestClass{ protected: TestClass(){cout<<'x';} TestClass(char c){cout<<c;} }; class TestClassl:public TestClass{ public: TestClassl(char c){cout<<c;}A.yB.yxC.xyD.yy
有下列程序:includeusing namespace std;class TestClass{protected:TestClass(){cou
有下列程序: #include<iostream> using namespace std; class TestClass{ protected: TestClass(){cout<<'x';} TestClass(char c){cout<<c;} }; class TestClassl:public TestClass{ public: TestClassl(char c){cout<<c;}
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相关考题:
有如下程序: include using namespace std; class TestClass{ int k; public: TestCla 有如下程序:include<iostream>using namespace std;class TestClass{int k;public:TestClass(int x=1):k(x){}~TestClass O{cout<<k;}};int main(){TestClass a[]={TestClass(3),TestClass(3),TestClass(3)};TestClass *p=new TestClass[2];delete []p;return ():}这个程序的输出结果是______。
有下列程序:include using namespace std; class TestClass1 { public: TestClass1(){ 有下列程序:include<iostream>using namespace std;class TestClass1{public:TestClass1(){cout<<"A";}};class TestClass2<public:TestClass2(){cout<<"B";}};class TestClass3:public TestClass1{TestClass2 b;
有如下程序:includeusing namespace std;class TestClass{public:TestClass (){cou 有如下程序: #include<iostream.h> using namespace std; class TestClass { public: TestClass (){cout<<"default constructor\n";} TestClass(const TestClass x){cont<<"copy constructor\n";} TestClass userCode(TestClass b){TestClass c(b);return c;} int main() { TestClass a,d; cout<<"calling userCode()\n"; d=userCode(a); return 0; } 执行上面程序的过程中,构造函数TestClass()和TestClass(const Testclass&x)被调用的次数分别是( )A. 2次 3次B.3次 2次C.都是2次D.都是3次
有如下程序:includeusing namespace std;class TestClass1{public:TestClass1 (){cou 有如下程序: #include<iostream> using namespace std; class TestClass1 { public: TestClass1 (){cout<<"TestClass1";} ~TestClass1 (){cout<<"~TestClass1";} }; class TestClass2:public TestClass1 { TestClass1 *p; public: Testclass2(){cout<<"TestClass2";p=new TestClass1();} ~TestClass2(){cout<<"~TestClass2";delete p;} ); int main() { TestClass2 obj; return 0; } 执行这个程序的输出结果是( )。A.TestClass2TestClass1TestClass1~TestClass1~TestClass2~TestClass1B.TestClass1TestClass2TestClass1~TestClass2~TestClass1~TestClass1C.TestClass2TestClass1TestClass1~TestClass2~TestClass1~TestClass1D.TestClass1TestClass2TestClas1~TestClass1~TestClass2~TestClass1
有下列程序:includeusing namespace std;class TestClass{public:virtual void fun1( 有下列程序: #include<iostream> using namespace std; class TestClass { public: virtual void fun1() { cout<<"fun1TestClass"; } virtual void fun2() { cout<<"fun2TestClass"; } }; class TeStA.fun1TeStClass1 fun2TeStClassB.fun1TestClass1 fun2TestClass1C.fun1TeStClass fun2TeStClassD.fun1TestClaSSfun2TestClaSS1
有如下程序: #include(iostream) using namespace std; class TestClass{ protected: TestClass(){couti(cout<<‘x’;} TestClass(char c){cout<<c;}}; class TestClassl:publicTestClass{ public: TestClassl(char c){cout<<c;}}; int main(){ TeA.yB.yxC.xyD.yy
有下列程序:includeusing namespace std;class TestClass{int a;public:TestClass(in 有下列程序: #include<iostream> using namespace std; class TestClass { int a; public: TestClass(int x)<a=x;} void show(){cout<<a;} }; class TestClass1:publicTestClass { int b; public: TestClaA.5B.1C.0D.2
有如下程序:includeusing namespace std;class TestClass{protected:TestClass(){co 有如下程序: #include<iost earn> using namespace std; class TestClass{ protected: TestClass(){cout<<'x';} TestClass(char C) {cout<<c;} }; class TestClass1:public TestClass { public: TestClass1(char C) {Cout<<c;) }; int main(){ TestClass1 d1('y'); return 0; } 执行这个程序,屏幕上将显示输出( )。A.yB.yxC.xyD.yy
有如下程序:includeusing namespace std;classTestClass{protected:TestClass(){cout 有如下程序: #include<iostream> using namespace std; classTestClass{ protected: TestClass(){cout<<'x';} TestClass(char c){cout<<c;} }; class TestClass1:public TestClass{ public: TestClass1(char C) {cout<<c;} }; int main(){ TestClass1 d1('y'); return 0; } 执行这个程序,屏幕上将显示输出( )。A.yB.yxC.xyD.yy