洪承廷

1. #include <cstdlib>
   
2. #include <iostream>
   
3. 
   
4. using namespace std;
   
5. int main()
   
6. {
   
7.     int score;
   
8.    
   
9.     re:
   
10.     cout<<"請輸入你的成績:";
    
11.     cin>>score;
    
12.     if(score>=90&&score<=100)
    
13.     cout<<"優等!!"<<endl;
    
14.     else if(score>=80&&score<=89)  
    
15.     cout<<"甲等"<<endl;
    
16.     else if(score>=70&&score<=79)
    
17.     cout<<"乙等"<<endl;
    
18.     else if(score>=60&&score<=69)
    
19.     cout<<"丙等"<<endl;
    
20.     else if(score>=0&&score<=59)
    
21.     cout<<"不及格"<<endl;
    
22.     goto re;
    
23.      system("pause");
    
24.     return 0;   
    
25. }

複製代碼