求问为什么我的程序会奔溃
#include<iostream>
using namespace std;
class MyStack {
public:
MyStack(int Size);
~MyStack();
bool stackEmpty();
bool stackFull();
void clearStack();
int stackLength();
//char push(char elem);
bool push(char elem);
bool pop(char &elem);
void stackTravel();
private:
int size;
int top;
char *pStack;
};
MyStack::MyStack(int Size)
{
size=0;
top=0;
size = Size;
pStack = new char(Size);
cout<<"申请"<<size<<"个内存的空间！"<<endl;
}
MyStack::~MyStack()
{
delete []pStack;
pStack=NULL;
cout<<"delete"<<endl;
}
bool MyStack::stackEmpty()
{
if (top==0)
return true;
else
return false;
}
bool MyStack::stackFull()
{
if(size==top)
return true;
else
return false;
}
void MyStack::clearStack()
{
top = 0;//覆盖
}
int MyStack::stackLength()
{
return top;
}
bool MyStack::push(char elem)
{
if(stackFull()){
return false;
}
pStack[top]=elem;
top++;
return true;
}
bool MyStack::pop(char &elem){
if(!stackEmpty())
{
top--;
elem=pStack[top];
return true;
}
else
{
return false;
}
}
void MyStack::stackTravel()
{
for (int i = 0;i < top;i++) {
cout << pStack[i];
}
cout << endl;
}
int main() {
MyStack pStack(5);
char elem;
char num[5]={'1','2','3','4','5'};
for(int i=0;i<5;i++){
pStack.push(num[i]);
}
//pStack.push('p');
//pStack.push('p');
pStack.pop(elem);
if (pStack.stackEmpty()) {
cout << "The stack is empty"<<endl;
}
if (pStack.stackFull()) {
cout << "The stack is full" << endl;
}
cout << "The stack's length:" << pStack.stackLength() << endl;
/*pStack.push('a');
pStack.push('p');
pStack.push('p');
pStack.push('l');*/
//pStack.push('e');
//pStack.stackTravel();
/*pStack.pop(elem);
cout << elem << endl;
pStack.clearStack();*/
//cout << "The stack's length:" << pStack.stackLength() << endl;
return 0;
}
