Question

我是Python的新手，制作了一个不错的小加密程序。取3个数字并将它们吐出+ 7到每个数字并交换第一个和最后一个数字。在底部它不会打印我的加密变量。 NameError：全局名称＆＃39;已加密＆＃39;没有定义......但它是？

def main():
    global unencrypted, encrypted
    unencrypted = int (input("Enter a 3-digit number: "))

    def isolate_digits():                 # separate the 3 digits into variables
        global units, tenths, hundreths
        units = unencrypted % 10
        tenths = (unencrypted / 10) % 10
        hundreths = (unencrypted / 100) % 10

    def replace_digits():                 # perform the encryption on each digit
        global encrypted_unit, encrypted_tenths, encrypted_hendreths
        encrypted_unit = ((units + 7) % 10)
        encrypted_tenths = ((tenths + 7) % 10)
        encrypted_hendreths = ((hundreths + 7) %10)

    def swap_digit_1_with_digit_3():
        temp = encrypted_unit
        encrypted_unit = encrypted_hundreths
        encrypted_hundreths = temp

    def recompose_encrypted_number():     # create the encrypted variable
        global encrypted
        encrypted = encrypted_unit * 1 + encrypted_tenths * 10 + encrypted_hundreths * 100

    print("Unencrypted: ", unencrypted)
    print("Encrypted:   ", encrypted)

main()

Answer 1

除非您打电话，否则功能不会执行任何操作。
您在global。

swap_digit_1_with_digit_3

您以两种不同的方式拼写encrypted_hundreths。

def main():
    global unencrypted, encrypted
    unencrypted = int (input("Enter a 3-digit number: "))

    def isolate_digits():                 # separate the 3 digits into variables
        global units, tenths, hundreths
        units = unencrypted % 10
        tenths = (unencrypted / 10) % 10
        hundreths = (unencrypted / 100) % 10

    def replace_digits():                 # perform the encryption on each digit
        global encrypted_unit, encrypted_tenths, encrypted_hundreths
        encrypted_unit = ((units + 7) % 10)
        encrypted_tenths = ((tenths + 7) % 10)
        encrypted_hundreths = ((hundreths + 7) %10)

    def swap_digit_1_with_digit_3():
        global encrypted_unit, encrypted_hundreths
        temp = encrypted_unit
        encrypted_unit = encrypted_hundreths
        encrypted_hundreths = temp

    def recompose_encrypted_number():     # create the encrypted variable
        global encrypted
        encrypted = encrypted_unit * 1 + encrypted_tenths * 10 + encrypted_hundreths * 100

    isolate_digits()
    replace_digits()
    swap_digit_1_with_digit_3()
    recompose_encrypted_number()
    print("Unencrypted: ", unencrypted)
    print("Encrypted:   ", encrypted)

main()

结果：

Enter a 3-digit number: 123
Unencrypted:  123
Encrypted:    101.23

NameError：未定义全局名称需要帮助

1 个答案: