李允軒

1. #include <iostream>
   
2. #include <cstdlib>
   
3. #include <string>
   
4. using namespace std;
   
5. int main()
   
6. {
   
7.     char a[50];
   
8.     cout << "請輸入一個字串:";
   
9.     cin.getline(a,50);
   
10.     cout << "你剛才輸入的字串是:" << a << endl;
    
11.     strupr (a);
    
12.     cout << "轉換為大寫:" << a << endl;
    
13.     strlwr (a);
    
14.     cout << "轉換為小寫:" << a << endl;
    
15.     system("pause");
    
16.     return 0;
    
17. }

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