1_12_python基礎學習_0517

def checkI(): while True: x = input(「請輸入：」) if x == ‘1’: print(‘當前餘額爲：999元’) elif x == ‘2’: print(‘當前剩餘流量爲：5G’) elif x == ‘3’: print(‘當前剩餘通話爲：189分鐘’) elif x == ‘0’: print(‘退出自助查詢系統’) break else: print

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