看了视频学了c++之“栈”的一些内容，自己编辑之后发现一个问题，在main函数中（点击此跳到main函数）测试除了问题。
我首先声明了五个Person类的对象，将它们作为实参传递测试时：（如下图）
我尝试着删除一个值时（如下图）
这是我有尝试插入一个值是却出现了问题（如下图）
问题出在何处呢？
以下是代码
#include<iostream>#include<string>using namespace std;#include<ostream>//Person类class Person{friend ostream &operator<<(ostream &out, Person per);private:string Name;string Sex;int Age;string Addr;public:bool operator==(Person per);Person(string N = "XXX", int A = 18, string S = "男", string Ad = "贵州"){Name = N;Age = A;Sex = S;Addr = Ad;}};ostream &operator<<(ostream &out, Person per){out << "姓名：" << per.Name << "\t"<< "年龄：" << per.Age << "\t" << "性别："<< per.Sex << "\t" <<"地址：" << per.Addr << endl;return out;}//bool Person::operator==(Person per){if (this->Addr == per.Addr&&this->Age == per.Age)return true;elsereturn false;}class Mystank{public:Mystank(int m_myStank);virtual ~Mystank();void clearStank();//清除bool StankEmpty() const;//判断是否为空bool StankFull();//判断是否为满int getStankLength();//获取长度bool Enstank(Person *element);//插入一个值bool Destank(Person *element);//删除一个值void StankTravall();//遍历函数private:int m_stankLength;int m_stankSize;int m_iTail;int m_iHead = 0;Person *m_pStank;};Mystank::Mystank(int size){m_stankSize = size;m_stankLength = 0;m_iTail = size-1;m_pStank = new Person[m_stankSize];}Mystank::~Mystank(){delete []m_pStank;m_pStank = NULL;}void Mystank::clearStank(){m_stankLength = 0;}bool Mystank::StankEmpty() const{return (m_stankLength == 0)? true : false;}bool Mystank::StankFull(){return (m_stankLength == m_stankSize) ? true : false;}int Mystank::getStankLength(){return m_stankLength;}bool Mystank::Enstank(Person *element){if (StankFull()){return false;}m_pStank[m_iTail] = *element; m_iTail--; m_stankLength++;return true;}bool Mystank::Destank(Person *element){if (StankEmpty()){return false;}m_iTail++;*element = m_pStank[m_iTail];m_iHead++;m_stankLength--;return true;}void Mystank::StankTravall(){for (int i = m_iHead; i <m_stankLength +m_iHead; i++){cout << m_pStank[i] << endl;}}int main(){Mystank* mystank = new Mystank(5);Person q1("张三", 18, "男", "江苏");Person q2("李四", 17, "女", "贵州");Person q3("王五", 20, "男", "北京 ");Person q4("赵六", 21, "女", "上海");Person q5("陈七", 21, "女", "东北");mystank->Enstank(&q1);mystank->Enstank(&q2);mystank->Enstank(&q3);mystank->Enstank(&q4);mystank->Enstank(&q5);mystank->StankTravall();cout << "删除后：" << endl;mystank->Destank(&q1);cout << q1 << endl;cout << endl;mystank->StankTravall();cout << "再插入后：" << endl;mystank->Enstank(&q4);mystank->StankTravall();delete mystank;mystank = NULL;}
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