may

1. //標頭檔
   
2. #include<iostream>
   
3. #include<cstdlib>
   
4. using namespace std;
   
5. //主程式
   
6. int main()
   
7. {
   
8.    cout <<" 1+2=5 " <<endl;
   
9.    system("pause");
   
10.    return 0;   
    
11. }

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may

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. 
   
5. int main()
   
6. {
   
7.   cout<<"Hello!"<<endl;
   
8.   system("pause");
   
9.   return 0;
   
10. }

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