有下列程序: include using namespace std; class Stack { public: Stack(unsigned 有下列程序： #include＜iosteram.h＞ using namespace std; class Stack { public: Stack(unsignedn=10):size(n){rep_=new int [size];top=O;} Stack(Stacks):size(s.size) { rep_=new int[size]; foA．4,3,2,1，B．4,3,6,7,2,1，C．4,3,6,2,1，D．1,2,3,4，
有下列程序: include using namespace std; class Stack { public: Stack(unsigned
有下列程序： #include＜iosteram.h＞ using namespace std; class Stack { public: Stack(unsignedn=10):size(n){rep_=new int [size];top=O;} Stack(Stack&s):size(s.size) { rep_=new int[size]; fo
A．4,3,2,1，
B．4,3,6,7,2,1，
C．4,3,6,2,1，
D．1,2,3,4，
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重载操作符的定义一般见于 IEEE 库的哪几个程序包 A.std_logic_arith、std_logic_unsigned、std_logic_signedB.std_logic_arith、std_logic_unsigned、std_logic_1164C.std_logic_unsigned、std_logic_1164、std_logic_arithD.std_logic_1164、std_logic_arith、std_logic_unsigned、std_logic_signed
阅读以下说明C++代码，将应填入(n)处的字句写在对应栏内。[说明]以下程序的功能是实现堆栈的一些基本操作。堆栈类stack共有三个成员函数：empty判断堆栈是否为空；push进行人栈操作；pop进行出栈操作。[C++程序]include "stdafx. h"include ＜iostream, h＞eonst int maxsize = 6;class stack {float data[ maxsize];int top;public:stuck(void);～ stack(void);bool empty(void);void push(float a);float pop(void);};stack: :stack(void){ top =0;cout ＜ ＜ "stack initialized." ＜ ＜ endl;}stack:: ～stack(void) {cout ＜ ＜" stack destoryed." ＜ ＜ endl;bool stack:: empty (void) {return (1);void stack: :push(float a)if(top= =maxsize) {cout ＜ ＜ "Stack is full!" ＜ ＜ endl;return;data[top] =a;(2);}float stack:: pop (void){ if((3)){cout＜ ＜ "Stack is undcrflow !" ＜ ＜ endl;return 0;(4);return (5);}void main( ){ stack s;coat ＜ ＜ "now push the data:";for(inti=l;i =maxsize;i+ +) {cout＜ ＜i＜ ＜" ";s. push(i);}coat ＜ ＜ endl;cout＜ ＜ "now pop the data:";for(i = 1 ;i ＜ = maxsize ;i + + )cout＜ ＜s. pop()＜ ＜" ";}
请将下列栈类Stack的横线处补充完整。class Stack{private:int pList[100]; ∥int数组，用于存放栈的元素int top; ∥栈顶元素(数组下标)public:Stack():top(0){}void Push(const int item); ∥新元素item
有如下程序:includeusing namespace std;classStack{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++ rip_[i]-s.rep_[i]; top=s.top; } ～Stack() {delete[]rep_;} void poush (int a) {rep_[topj=a; top++;} int pep() { --top; return rep_[top];} bool isEmpty() cons5 [return Top ==0;} private: int*rep_; unsigned size, top; }; int main() { Stack s1; for(int i=1;i＜5;i++) s1.push(i); Stack s2(s1); for(i=1;i＜3;i++} cout＜＜s2.pop()＜＜','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0; } 执行上面程序的输出是A．4,3,2,1,B．4,3,6,7,2,1,C．4,3,6,2,1,D．1,2,3,4,
有下列程序: include using namespace std; class Base { public: Base(){cout 有下列程序： #include＜iosteram.h＞ using namespace std; class Base { public: Base(){cout＜＜"BB"; f(); } void f(){cout＜＜"Bf";} }; class Derived:public Base { public: Derived(){cout＜＜"DA．BBBfDDB．BBDfDDDfC．DDD．DDBBBf
有如下程序:include using namespace std;class Stack {public: Stack(unsigned n= 1 有如下程序: #include ＜iostream＞ using namespace std; class Stack { public: Stack(unsigned n= 10):size(n) {rep_=ew 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++) s1. push(i); Stack s2(s1); for(i= 1 ;i3;i++) cout＜＜s2.pop()＜＜','; s2.push(6); si.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0; }执行上面程序的输出是______ 。A．4,3,2,1，B．4,3,6,7,2,1，C．4,3,6,2,1，D．1，2，3，4，
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,
阅读下列说明和C++代码，填写程序中的空（1）～（6），将解答写入答题纸的对应栏内。【说明】以下C++代码实现一个简单绘图工具，绘制不同形状以及不同颜色的图形。部分类及其关系如图6－1所示。【C++代码】#include?#include?using?namespace?std;class?DrawCircle?{??????//绘制圆形，抽象类? ? ? public: （1）；//定义参数为?int?radius,?int?x,?inty? ?virtual～DrawCircle()?{?}};class?RedCircle：public?DrawCircle?{????//绘制红色圆形? ? ? ? public: void?drawCircle(intradius,?int?x,?int?y)?{cout??drawCircle?=?drawCircle;? }? ?virtual～shape()?{?}? public:? ?virtual?void?draw()?=?0;};class?Circle：public?Shape?{????//圆形? ? private:? ? ?int?x,y,radius;? ? public:? Circle(int?x,inty,int?radius,DrawCircle?*drawCircle)? （3）? {? this->x?=?x;? ?this->y?=?y;? ? this->radius?=?radius; }? ? ? public:? void?draw(){? drawCircle?-> （4）; }};int?main(){Shape?*redCirclenew?Circle(100,100,10,????（5）????);//绘制红色圆形? Shape?*greenCircle＝new?Circle(100,100,10, （6）??);//绘制绿色圆形redCircle >draw();? ?greenCircle?->draw();? ?return?0;}
开始往输入串末尾和分析栈stack中放“＃”，然后把文法开始符号压栈。预测分析程序总是按_________和________。A．stack栈顶符号X 最后的输入符号bB．stack栈顶符号X 当前输入符号aC．stack栈尾符号X 当前输入符号aD．stack栈尾符号X 最后的输入符号b