如何從此python代碼獲得正確的輸出？

Question

我有一個 python 代碼，它無法獲得正確的輸出。 代碼如下所示：

score = int(input("Please input a score: "))
grade = ""
if score < 60:
    grade = "failed"
elif score < 80:     # between 60 and 80
    grade = "pass"
elif score < 90:
    grade = "good"
else:
    grade = "excellent"

print("score is (0), level is (1)".format(score,grade))

誰能告訴我問題出在哪里？ 非常感謝！

Answer 1

您應該將 if 語句更改為：

if score <= 60:
    grade = "failed"
elif score <= 80 and score > 60:     # between 60 and 80
    grade = "pass"
elif score <= 90 and score > 80:
    grade = "good"
elif score > 90: #Assuming there is no max score since before, you left the last statement as an else. 
    grade = "excellent"
else: #Not necessary but always nice to include.
    print("Not a valid score, please try again.")

並且，正如@locid 所評論的，將print("score is (0), level is (1)".format(score,grade))更改為print("score is {0}, level is {1}".format(score,grade))

雖然我更喜歡

print("score is " + str(score) + ", level is " + str(grade))