當(dāng)用戶沒有輸入正確的字符時(shí)，我試圖得到消息“無效值”，但程序重新啟動(dòng)而不打印消息。你可以幫我嗎？# Print "Male" when the user types "M" and "Female" when the user types "F"def m_ou_f():    mens_erro = "INVALID VALUE"    while True:        try:            sex = str(input("Type M for Male or F for Female: "))            sex == "M" or sex == "F" or sex == "f" or sex == "m"        except:            print(mens_erro)            continue        else:            return sex            breakwhile True:    sex = m_ou_f()    try:        sex == "M" or sex == "F" or sex == "f" or sex == "m"    except:        print("INVALID VALUE!")        continue    else:        if sex == 'M' or sex == 'm':            print("Male")            break        elif sex == 'F' or sex == 'f':            print("Female")            break