張凱婷

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. int main()
   
5. {
   
6.     int a = 10;
   
7.     int b = 20;
   
8.     int c =0;
   
9.     c = b;
   
10.     b = a;  
    
11.     a = c;  
    
12.    
    
13.     cout << a << endl;  
    
14.     cout << b << endl;  
    
15.     system("pause");
    
16.     return 0;   
    
17. }

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