1 #include <iostream>
 2 #include <stdlib.h>
 3 #include <string.h>
 4 #include <cstdio>
 5 using namespace std;
 6 
 7 template<class T>
 8 void Swap(T& a,T& b){
 9     T temp;
10     temp = a;
11     a = b;
12     b = temp;
13 }
14 int main(){
15     int a = 1,b = 2;
16     printf("a=%d,b=%d\n",a,b);
17     Swap<int>(a,b);
18     printf("a=%d,b=%d\n",a,b);
19     system("pause");
20 } 

 1 #include <iostream>
 2 #include <stdlib.h>
 3 #include <string.h>
 4 #include <cstdio>
 5 using namespace std;
 6 template<class T>
 7 class Stack{
 8 private :
 9     T *m_ptr;
10     int m_size;
11     int m_n;
12 public:
13     Stack();
14     ~Stack();
15     void push(T t);
16     T pop();
17     bool isEmpty();
18 };
19 
20 template<class T> Stack<T>::Stack(){
21     m_size = 100;
22     m_ptr = new T[m_size];
23     m_n = 0;
24 }
25 template<class T> Stack<T>::~Stack(){
26     delete [] m_ptr;
27 }
28 template<class T> void Stack<T>::push(T t){
29     m_ptr[m_n++] = t;
30 }
31 template<class T> T Stack<T>::pop(){
32     return m_ptr[--m_n];
33 }
34 template<class T> bool Stack<T>::isEmpty(){
35     return m_n == 0 ? true : false;
36 }
37 int main(){
38     Stack<int> stack;
39     stack.push(1);
40     stack.push(2);
41     stack.push(3);
42     while(!stack.isEmpty()){
43         printf("%d\n",stack.pop());
44     }
45     system("pause");
46 }