#include<iostream> template<typename T> class MyStack { public: MyStack(int size = 0); ~MyStack(); bool isEmpty(); //判空 bool isFull(); //判满 int StackLength(); //栈当前长度 bool push(T elem); //入栈 bool pop(T & elem); //出栈 v oid StackTraverse(bool topdown)const; //遍历 const T & operator[](int k) const ; T & operator[](int k); private: T *p_mbuffer; //申请栈空间 int m_size; //栈大小 int m_top; //栈顶}; template<typename T> const T & MyStack<T>::operator[](int k) const { if (k<0 || k>StackLength()) { cerr << "下标越界!" << endl; } return p_mbuffer[k]; } template<typename T> T & MyStack<T>::operator[](int k) { if (k<0 || k>StackLength()) { cer << "下标越界!" << endl; } return p_mbuffer[k]; } int main(void) { MyStack<char> stack(30); stack.push('s'); char ch=stack[0];//就这里会显示无法从MyStack<char> 到 char 的适当转换函数,这是哪里出错了吗 return 0; }
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