宜搭低代码高级认证题2

宜搭低代码高级认证题2: 编写一个基本的计算器

宜搭低代码高级认证题2: 编写一个基本的计算器是低代码开发领域的一个重要挑战。在这个问题上，我们需要编写一个能够进行加、减、乘、除运算的计算器，并且具备一些基本功能，如显示结果和保存结果。

下面是一个简单的低代码计算器的示例，它包含四个按钮：加、减、乘、除。当用户按下一个按钮时，计算器会执行相应的运算，并显示结果。以下是计算器的主要组成部分：

1. 按钮类
2. 运算符类
3. 结果类
4. 主函数

按钮类

按钮类是计算器的入口点。我们可以使用一个按钮对象来创建和管理计算器中的按钮。在按钮类中，我们可以添加一些事件处理程序，如单击事件和重绘事件。

以下是一个简单的按钮类示例：

“`python
class Button:
def __init__(self, text):
self.text = text
self.onClick = False

def onClick(self):
if self.onClick:
# 执行按钮所执行的操作
result = input(\”请输入运算符：\”)
if result.isdigit():
# 执行加、减、乘、除运算
result = sum(result)
result = min(result)
result = max(result)
result = divide(result)
result = multiply(result)
print(\”结果为：\”, result)
self.onClick = False
else:
# 取消按钮的单击事件
self.onClick = True
“`

运算符类

运算符类用于处理各种运算符。我们可以使用一个运算符对象来定义所有的运算符，并为它们添加一些属性，如操作数、结果等。

以下是一个简单的运算符类示例：

“`python
class Operator:
def __init__(self, operator, value):
self.operator = operator
self.value = value

def __str__(self):
return self.operator + \” \” + str(self.value)

def apply(self, other):
return self.operator + \” \” + str(other)

def equals(self, other):
return self.operator + \” \” + str(other)

def concat(self, other):
return self.operator + \” \” + other

def multiply(self, other):
return self.operator + \” \” + str(other)

def divide(self, other):
return self.operator + \” \” + str(other)

def not(self):
return not self.operator

def subtract(self, other):
return self.operator + \” \” + str(other)

def add(self, other):
return self.operator + \” \” + str(other)

def find(self, other):
return self.operator + \” \” + str(other)

def count(self, other):
return self.operator + \” \” + str(other)

def switch(self, other):
return self.operator + \” \” + str(other)

def case(self, other):
return self.operator + \” \” + str(other)

def case_or(self, other):
return self.operator + \” \” + str(other)

def case_and(self, other):
return self.operator + \” \” + str(other)

def case_not(self, other):
return self.operator + \” \” + str(other)

def less(self, other):
return self.operator + \” \” + str(other)

def less_than(self, other):
return self.operator + \” \” + str(other)

def greater(self, other):
return self.operator + \” \” + str(other)

def greater_than(self, other):
return self.operator + \” \” + str(other)

def less_or_equal(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal(self, other):
return self.operator + \” \” + str(other)

def equal(self, other):
return self.operator + \” \” + str(other)

def not_equal(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal_to(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal_to_to(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal_to_to_not_less_than_or_equal_to(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self, other):
return self.operator + \” \” + str(other)

def not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not_less_than_or_equal_to_to_not(self,