006

黄金猫

0.no
1.endless
2.endless
3.opposite,translate str to int 18 first
4.while True:
    print("iloveFishC.com")
    break
5.大于等于10，小于等于20
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0.
temp = input("input your score:")
score = int(temp)
if score < 60:
    print("D")
elif 60 <= score < 80:
    print("C")
elif 80 <= score < 90:
    print("B")
elif 90 <= score < 100:
    print("A")
elif score == 100:
    print("S")

1.
while 1:
    temp = input("input your score:")
    if temp == "e":
        break
    score = int(temp)
    if score < 60:
        print("D")
    elif 60 <= score < 80:
        print("C")
    elif 80 <= score < 90:
        print("B")
    elif 90 <= score < 100:
        print("A")
    elif score == 100:
        print("S")