python-3.x - 使用 def 函数将五进制转换为十进制、十进制转换为五进制、5 进制数相加和 5 进制数相乘

Question

如何使用 def 函数将 5 进制数转换为小数、将小数转换为 5 进制数、将 5 进制数相加并乘以 5 进制数:

• gumatj_to_decimal(a)，将 Gumatj 数字转换为十进制
• decimal_to_gumatj(a)，将十进制数转换为 Gumatj
• gumatj_add(a, b)，添加 2 个 Gumatj 数
• gumatj_multiply(a, b)，将 2 个 Gumatj 数相乘

choice = input ("Choose test:\n")
action = choice[:1]
print ("calling function")

if action == 'g' or action == 'd':

    num = int(choice[2:])

    if action == 'g':
      answer = gumatj.gumatj_to_decimal (num)
    else:
      answer = gumatj.decimal_to_gumatj (num)

 elif action == 'a' or action == 'm':

    num1, num2 = map (int, choice[2:].split(" "))

    if action == 'a':
      answer = gumatj.gumatj_add (num1, num2)
    else:
      answer = gumatj.gumatj_multiply (num1, num2)

 print ("called function")
 print (answer)

示例 I/O:

Choose test: 
d 12 
calling function 
called function 
22 

示例 I/O:

Choose test: 
g 22 
calling function 
called function 
12 

示例 I/O:

Choose test:
a 12 14 
calling function 
called function 
31 

示例 I/O:

Choose test: 
m 3 4 
calling function 
called function 
22

Answer 1

试试这段代码:

import numpy


def gumatj_to_decimal(num):
    return int(str(num), 5)


def decimal_to_gumatj(num):
    return numpy.base_repr(num, 5)


def gumatj_add(num1, num2):
    return decimal_to_gumatj(gumatj_to_decimal(num1) + gumatj_to_decimal(num2))


def gumatj_multiply(num1, num2):
    return decimal_to_gumatj(gumatj_to_decimal(num1) * gumatj_to_decimal(num2))


choice = input("Choose test:\n")
action = choice[:1]
print("calling function")

if action == 'g' or action == 'd':

    num = int(choice[2:])

    if action == 'g':
        answer = gumatj_to_decimal(num)
    else:
        answer = decimal_to_gumatj(num)

elif action == 'a' or action == 'm':

    num1, num2 = map(int, choice[2:].split(" "))

    if action == 'a':
        answer = gumatj_add(num1, num2)
    else:
        answer = gumatj_multiply(num1, num2)

print("called function")
print(answer)

示例输出:

Choose test:
d 12
calling function
called function
22

Choose test:
g 22
calling function
called function
12

Choose test:
a 12 14
calling function
called function
31

Choose test:
m 3 4     
calling function
called function
22

解释:

• 将 5 进制数转换为十进制数:

python int可以将任何基数的字符串转换为整数:

def gumatj_to_decimal(num):
    return int(str(num), 5)

• 将十进制数转换为基数 5:

Numpy 的 base_repr可以这样做:

def decimal_to_gumatj(num):
    return numpy.base_repr(num, 5)

• 将两个以 5 为基数的数字相加:

首先将它们转换为十进制，将它们相加并转换回基数 5:

def gumatj_add(num1, num2):
    return decimal_to_gumatj(gumatj_to_decimal(num1) + gumatj_to_decimal(num2))

• 两个以 5 为底的数字相乘:

先将它们转为十进制，相乘，再转回5进制:

def gumatj_multiply(num1, num2):
    return decimal_to_gumatj(gumatj_to_decimal(num1) * gumatj_to_decimal(num2))