黃宇瑄

1. s=float(input("報上你的成績: "))
   
2. if(s>=90 and s<=100):
   
3.     print("優等")
   
4. elif(s>=80 and s<=89):
   
5.     print("甲等")
   
6. elif(s>=70 and s<=79):
   
7.     print("乙等")
   
8. elif(s>=60 and s<=69):
   
9.     print("丙等")
   
10. elif(s>=0 and s<=59):
    
11.     print("不及格")
    
12. else:
    
13.     print("亂打")

複製代碼