蛤

#include<iostream> #include<string> #include<vector> using namespace std; template<typename T> class Stack{ private: vector<T> elems;//这里如果用二维数组会怎么样呢 public: vo...

唔。。。这指针逆置就先列一些我已经看懂了的简单的方法吧

#include &lt;iostream&gt; using namespace std; class Shape { protected: int width, height; public: Shape( int a=0, int b=0) { width = a; height = b; } int area() {