创建一个模块calculator.py，完成任意两个数的加(add)、减(sub)、乘(mult)、除(div)运算；导入该模块，分别调用其中的函数，完成如下操作： 1、25+56 2、86-68 3

 模块calculator.py

#-*- coding:UTF-8 -*-__author__ = "zhangguodong"__time__ ="2017.09.29"def add(a,b):    return a+bdef sub(a,b):    return a-bdef mult(a,b):    return a*bdef div(a,b):    return a/b

主文件程序14.py

#-*- coding:UTF-8 -*-__author__ = "zhangguodong"__time__ ="2017.09.29"from calculator import add, sub, mult, div# a = float(raw_input("Input the first number:"))# b = float(raw_input("Input the second number:"))operator = {'+':add,'-':sub,'*':mult,'/':div}def Input(a,o,b):    print "%s%s%s=%s"%(a,o,b,operator.get(o)(a,b))Input(25,"+",56)Input(86,"-",68)Input(50,"*",60)Input(99,"/",25)

输出结果和截图：

25+56=8186-68=1850*60=300099/25=3