return x * y def calculator(opcode): if opcode == 1: return add elif opcode == 2: return sub else: return mult my_calc = calculator(2) #my calc is a subtractor my_calc(5, 4) #returns 5 - 4 = 1 my_calc = calculator(9) #my calc is now a multiplier my_calc(5, 4) #ret...
To understand this example, you should have the knowledge of the following Python programming topics: Python Operators Python Functions Python Function Arguments Python User-defined FunctionsExample: Simple Calculator by Using Functions # This function adds two numbers def add(x, y): return x + y ...
Learn object-oriented programming (OOP) in Python by creating a calculator class that provides methods for basic arithmetic operations. Add, subtract, multiply, and divide numbers using the calculator class. Practice exercises and solutions are included.
returnx * y defcalculator(opcode): ifopcode ==1: returnadd elifopcode ==2: returnsub else: returnmult my_calc = calculator(2)#my calc is a subtractor my_calc(5,4)#returns 5 - 4 = 1 my_calc = calculator(9)#my calc is now a multi...
defcalculator(opcode):ifopcode==1:returnadd elif opcode==2:returnsubelse:returnmult my_calc=calculator(2)#my calc is a subtractormy_calc(5,4)#returns5-4=1my_calc=calculator(9)#my calc is now a multipliermy_calc(5,4)#returns5x4=20. ...
这个适配器将datetime.date和datetime.time(它们具有相同的接口到strftime)转换为一个字符串,以便我们原始的AgeCalculator可以使用。现在我们可以使用原始代码与我们的新接口。我将方法签名更改为get_age,以演示调用接口可能也在寻找不同的方法名称,而不仅仅是不同类型的参数。 创建一个类作为适配器是实现这种模式的常规...
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There are many lists out there with ideas for beginner Python projects. Here are some ideas to get you started: Number guessing game Simple calculator app Dice roll simulator Bitcoin Price Notification Service If you find it difficult to come up with Python practice projects to work on, watchth...
1.1.1 Why Python for Economists? 1.1.2 Setup the Python 1.1.3 Resources 1.1.4 “Hello world!” 1.2 Basics of Math and Variables 1.2.1 Python Calculator 1.2.2 Variables 1.2.3 Numbers and Characters 1.3 Built-in Functions and Modules ...
Python Code: frommathimportsqrtprint('Pythagorean theorem calculator! Calculate your triangle sides.')print('Assume the sides are a, b, c and c is the hypotenuse (the side opposite the right angle')formula=input('Which side (a, b, c) do you wish to calculate? side> ')ifformula=='c...