如果准备读文件,打开顺序文件"text.dat"的正确语句是A.Open "text.dat"For Write As #1B.Open "t
如果准备读文件,打开顺序文件"text.dat"的正确语句是
A.Open "text.dat"For Write As #1
B.Open "text.dat"For Binary As #1
C.Open "text.dat"For Input As #1
D.Open "text.dat"For Random As #1
如果准备读文件,打开顺序文件"text.dat"的正确语句是
A.Open "text.dat"For Write As #1
B.Open "text.dat"For Binary As #1
C.Open "text.dat"For Input As #1
D.Open "text.dat"For Random As #1
第1题
有如下程序: #include <iostream> using namespace std; Class x { protected: int a; public: x() { a=1; } }; class x1 : virtual public x { public: x1() { a+=1; cout<<
A.1
B.123
C.242
D.244
第2题
有如下程序: #include <iostream> using namespace std; class AA { public: virtual void f() { cout<< "AA"; } }; class BB : public AA { public: BB() { cout << "BB"; } }; cla
A.AA
B.AABBCC
C.BBAABBCC
D.BBBBAACC
第3题
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(){ Te
A.y
B.yx
C.xy
D.yy
第4题
有如下程序: #inClude<iostream> using namespace std; Class TestClass {public: virtUal void furll() {cout<<“funlTestclass”;} virtual void fun2() {cout<<“{fun2TestClass”;}}; class TestClassl:public TestClass {void fun() {cout<<“fu
A.fun1TestClass1 fun2TestClass
B.fun1TestClass1 fun2TestClass1
C.fUnlTestClass fun2TestClass
D.funlTe3tClass fun2TestClassl
第5题
有如下程序: #include <iostream> using namespace std; class BASE{ public: ~BASE(){cout<<"BASE";} }; class DERIVED:public BASE{ public: ~DERIVED(){cout<<"DERIVED";} }; int main(){DERIVED x;return 0;} 执行后的输出结果是
A.BASE
B.DERIVED
C.BASEDERIVED
D.DERIVEDBASE
第6题
(10 )有如下程序:
#include<iostream>
using namespace std;
class A{
public:
A(){cout<<"A" ; }
~A(){cout<<"A" ; }
} ;
class B {
A a;
public:
B(){cout<<"B";}
~B(){cout<<"B";}
};
int main (){
B b;
return 0;
}
程序的输出结果是 ___________
第7题
有如下程序: #include<iostream> using namespace std; Class TestClass {int a; public: TestClass(int x){a=x;} void show(){cout<<a;}}; class TestClass1:public TestClass {int b; public: TestClass1(int i):TestClass(i+1),b(i){} voi
A.5
B.1
C.0
D.2
第8题
有如下程序: #include <iostream> using namespace std; class x { protected: int a; public: x() { a=1; } }; class x1 : virtual public x { public: x1() { a+=1; cout<<a; } };
A.1
B.123
C.242
D.244
第9题
有如下程序:#include <iostream> using namespace std; class Test{ public: Test(){} ~Test(){cout<<’#’;} }; int main(){ test temp[2], *ptemp[2]; return 0; } 执行这个程序输出星号(#)的个数为()。> A、1
B、2
C、3
D、4
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