- #include<cstdlib>
- using namespace std;
- int main(){
- int a;
- cout<<"請輸入你的成績:";
- cin>>a;
- switch (a){
- case 91 ... 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;
- break; }
- system("pause");
- return 0;
- }
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