简单的计算器

python实现。

上代码:

callib.py

#!c:/python33/python.exe

#加
def plus(number_one, number_two):
    return number_one + number_two

#减
def minus(number_one, number_two):
    return number_one - number_two

#乘
def multiplication(number_one, number_two):
    return number_one * number_two

#除
def divide(number_one, number_two):
    return number_one / number_two
    

cal.py

#!c:/python33/python

import callib
from sys import argv

try:
    op = str(input("请输入计算方式(+,-,*,/): "))
    first_number = float(input("第一个数： "))
    second_number = float(input("第二个数: "))
    
except Exception:
    print("parameter error, please try again.")
    exit()


if op == '+':
    result = callib.plus(first_number, second_number)
elif op == '-':
    result = callib.minus(first_number, second_number)
elif op == '/':
    result = callib.divide(first_number, second_number)
elif op == '*':
    result = callib.multiplication(first_number, second_number)
else:
    print("计算方式不合法!")

result_tips = "结果是: " + str(first_number) + op + str(second_number) + '=' + str(result)
print(result_tips)

运行cal.py

。。。。。。。。。。