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importtime print(time.ctime()) b1=float(input('第1个数')) b2=float(input('第2个数')) for__countinrange(100000): fh=input('运算符号') iffhin'+': print((b1+b2)) print(time.ctime()) break eliffhin'-': print((b1-b2)) print(time.ctime()) break eliffhin'*': print((b1*b2)) print(time.ctime()) break eliffhin'/': print((b1/b2)) print(time.ctime()) break else: print('？？？？？？？？？？？？？？？？？？？？？？？？？？？') print(time.ctime()) continue imgsrc="https://static.codemao.cn/emoji/codemao/%E7%BC%96%E7%A8%8B%E7%8C%AB_%E5%8A%A0%E6%B2%B9.gif"alt="emotion_编程猫_加油"