- #include<iostream>
- #include<cstdlib>
- using namespace std;
- int main()
- {
- int X;
- cout<<"請輸入成績";
- cin>>X;
- switch(X)
- {
- case 90 ... 100 :
- cout<<"優等"<<endl;
- break;
- case 80 ... 89 :
- cout<<"甲等"<<endl;
- break;
- case 70 ... 79 :
- cout<<"乙等"<<endl;
- break;
- case 60 ... 69 :
- cout<<"丙等"<<endl;
- break;
- case 0 ... 59 :
- cout<<"不及格"<<endl;
- break;
- default :
- cout<<"輸入錯誤"<<endl ;
- }
- cout<<endl;
- system("pause");
- return 0;
- }
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