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有如下程序:include using namespace std;class Stack{public:Stack(unsigned n=10

有如下程序: #include <iostream.h> using namespace std; class Stack { public: Stack(unsigned n=10):size(n){rep_=new int [size]; top=0;} Stack(Stack&s): size (s.size) { rep_=new int[size]; for (int i=0;i<size;i++) rep_[i]=s.rep_[i]; top=s.top; } ~Stack(){delete[]rep_;} void push(int a){rep_[top]=a; top++;} int pop(){--top; return rep_[top];} bool isEmpty() const {return top ==0;} private: int*rep_; unsigned size, top; }; int main() { Stack s1; for(int i=1;i<5;i++) sl.push(i); Stack s2(s1); for (int i=1;i<3;i++) cout<<s2.pop()<<','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout<<s2.pop()<<','; return 0; } 执行上面程序将输出( )。

A.4,3,2,1,

B.4,3,6,7,2,1,

C.4,3,6,2,1,

D.1,2,3,4,


参考答案

更多 “ 有如下程序:include using namespace std;class Stack{public:Stack(unsigned n=10 有如下程序: #include <iostream.h> using namespace std; class Stack { public: Stack(unsigned n=10):size(n){rep_=new int [size]; top=0;} Stack(Stacks): size (s.size) { rep_=new int[size]; for (int i=0;i<size;i++) rep_[i]=s.rep_[i]; top=s.top; } ~Stack(){delete[]rep_;} void push(int a){rep_[top]=a; top++;} int pop(){--top; return rep_[top];} bool isEmpty() const {return top ==0;} private: int*rep_; unsigned size, top; }; int main() { Stack s1; for(int i=1;i<5;i++) sl.push(i); Stack s2(s1); for (int i=1;i<3;i++) cout<<s2.pop()<<','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout<<s2.pop()<<','; return 0; } 执行上面程序将输出( )。A.4,3,2,1,B.4,3,6,7,2,1,C.4,3,6,2,1,D.1,2,3,4, ” 相关考题
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