用于创建执行计算器操作的类的 Python 程序
pythonserver side programmingprogramming更新于 2024/1/27 5:39:00
当需要创建执行计算器操作的类时，使用面向对象方法。在这里，定义一个类，并定义属性。在类中定义执行某些操作的函数。创建该类的实例，并使用这些函数执行计算器操作。
下面是同样的演示 −
示例
class calculator_implementation():
def __init__(self,in_1,in_2):
self.a=in_1
self.b=in_2
def add_vals(self):
return self.a+self.b
def multiply_vals(self):
return self.a*self.b
def divide_vals(self):
return self.a/self.b
def subtract_vals(self):
return self.a-self.b
input_1 = int(input("Enter the first number: "))
input_2 = int(input("Enter the second number: "))
print("The entered first and second numbers are : ")
print(input_1, input_2)
my_instance = calculator_implementation(input_1,input_2)
choice=1
while choice!=0:
print("0. Exit")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")
choice=int(input("Enter your choice... "))
if choice==1:
print("The computed addition result is : ",my_instance.add_vals())
elif choice==2:
print("The computed subtraction result is : ",my_instance.subtract_vals())
elif choice==3:
print("The computed product result is : ",my_instance.multiply_vals())
elif choice==4:
print("The computed division result is : ",round(my_instance.divide_vals(),2))
elif choice==0:
print("Exit")
else:
print("Sorry, invalid choice!")
print()
输出
Enter the first number: 70 Enter the second number: 2 The entered first and second numbers are : 70 2 0. Exit 1. Addition 2. Subtraction 3. Multiplication 4. Division Enter your choice... 1 The computed addition result is : 72 0. Exit 1. Addition 2. Subtraction 3. Multiplication 4. Division Enter your choice... 2 The computed subtraction result is : 68 0. Exit 1. Addition 2. Subtraction 3. Multiplication 4. Division Enter your choice... 3 The computed product result is : 140 0. Exit 1. Addition 2. Subtraction 3. Multiplication 4. Division Enter your choice... 4 The computed division result is : 35.0 0. Exit 1. Addition 2. Subtraction 3. Multiplication 4. Division Enter your choice... 0 Exit
解释
- 定义一个名为‘calculator_implementation’的类，该类具有‘add_vals’、‘subtract_vals’、‘multiply_vals’和‘divide_vals’等函数。
- 这些函数分别用于执行加法、减法、乘法和除法等计算器运算。
- 创建此类的一个实例。
- 输入两个数字的值并对其执行运算。
- 相关消息和输出显示在控制台上。
