李宗祐

1. score=int(input("請輸入你的成績:"))
   
2. if score>=90 and score<=100:
   
3.     print("優等")
   
4. if score>=80 and score<=89:
   
5.     print("甲等")
   
6. if score>=70 and score<=79:
   
7.     print("乙等")
   
8. if score>=60 and score<=69:
   
9.     print("丙等")
   
10. else:
    
11.     print("輸入錯誤!")

複製代碼