使用Python设计一个小模块,模块功能是一个简易的加减乘除计算器
时间: 2024-05-05 18:20:47 浏览: 10
好的,我可以帮你设计一个简易的加减乘除计算器模块,代码如下:
```python
def add(num1, num2):
'''加法运算'''
return num1 + num2
def subtract(num1, num2):
'''减法运算'''
return num1 - num2
def multiply(num1, num2):
'''乘法运算'''
return num1 * num2
def divide(num1, num2):
'''除法运算'''
if num2 == 0:
return "除数不能为0"
else:
return num1 / num2
```
这个模块包含了四个函数,分别对应加、减、乘、除四种基本的数学运算。每个函数都有两个参数,分别是要进行运算的两个数字。其中,除法函数需要判断除数是否为0,如果为0则返回一个错误提示信息。你可以将这个代码保存为一个名为“calculator.py”的文件,然后在其他Python程序中通过“import calculator”语句来引入并使用这个模块。
相关问题
用户图形界面设计,python,设计一个计算器带有推出功能
好的,可以使用 Python 的 tkinter 模块来实现一个简单的计算器带有推出功能。以下是一个示例代码:
```python
from tkinter import *
# 创建窗口
root = Tk()
root.title("Calculator")
# 计算器显示屏
e = Entry(root, width=35, borderwidth=5)
e.grid(row=0, column=0, columnspan=4, padx=10, pady=10)
# 定义按钮操作
def button_click(number):
current = e.get()
e.delete(0, END)
e.insert(0, str(current) + str(number))
def button_clear():
e.delete(0, END)
def button_add():
first_number = e.get()
global f_num
global math
math = "addition"
f_num = int(first_number)
e.delete(0, END)
def button_subtract():
first_number = e.get()
global f_num
global math
math = "subtraction"
f_num = int(first_number)
e.delete(0, END)
def button_multiply():
first_number = e.get()
global f_num
global math
math = "multiplication"
f_num = int(first_number)
e.delete(0, END)
def button_divide():
first_number = e.get()
global f_num
global math
math = "division"
f_num = int(first_number)
e.delete(0, END)
def button_equal():
second_number = e.get()
e.delete(0, END)
if math == "addition":
e.insert(0, f_num + int(second_number))
elif math == "subtraction":
e.insert(0, f_num - int(second_number))
elif math == "multiplication":
e.insert(0, f_num * int(second_number))
elif math == "division":
e.insert(0, f_num / int(second_number))
def button_exit():
root.destroy()
# 创建按钮
button_1 = Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))
button_add = Button(root, text="+", padx=39, pady=20, command=button_add)
button_subtract = Button(root, text="-", padx=41, pady=20, command=button_subtract)
button_multiply = Button(root, text="*", padx=40, pady=20, command=button_multiply)
button_divide = Button(root, text="/", padx=41, pady=20, command=button_divide)
button_equal = Button(root, text="=", padx=91, pady=20, command=button_equal)
button_clear = Button(root, text="Clear", padx=79, pady=20, command=button_clear)
button_exit = Button(root, text="Exit", padx=91, pady=20, command=button_exit)
# 显示按钮
button_1.grid(row=1, column=0)
button_2.grid(row=1, column=1)
button_3.grid(row=1, column=2)
button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)
button_7.grid(row=3, column=0)
button_8.grid(row=3, column=1)
button_9.grid(row=3, column=2)
button_0.grid(row=4, column=0)
button_clear.grid(row=4, column=1, columnspan=2)
button_exit.grid(row=4, column=3)
button_add.grid(row=5, column=0)
button_subtract.grid(row=6, column=0)
button_multiply.grid(row=5, column=1)
button_divide.grid(row=6, column=1)
button_equal.grid(row=5, column=2, columnspan=2)
# 运行窗口
root.mainloop()
```
在这个示例代码中,我们使用了 `Entry` 来显示计算器的输入和输出结果。按钮操作主要实现了数字输入、清除、加减乘除和等于运算。此外,我们还添加了推出功能的按钮。
用户图形界面设计,python,设计一个计算器带有退出功能
好的,你可以使用 Python 的 Tkinter 模块来实现一个简单的计算器界面,并添加退出功能。以下是一个示例代码:
```python
from tkinter import *
# 创建主窗口
root = Tk()
root.title("计算器")
# 设置计算器显示框
display = Entry(root, width=35, borderwidth=5)
display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)
# 定义按钮点击事件
def button_click(number):
current = display.get()
display.delete(0, END)
display.insert(0, str(current) + str(number))
def button_clear():
display.delete(0, END)
def button_add():
first_number = display.get()
global f_num
global math
math = "addition"
f_num = float(first_number)
display.delete(0, END)
def button_subtract():
first_number = display.get()
global f_num
global math
math = "subtraction"
f_num = float(first_number)
display.delete(0, END)
def button_multiply():
first_number = display.get()
global f_num
global math
math = "multiplication"
f_num = float(first_number)
display.delete(0, END)
def button_divide():
first_number = display.get()
global f_num
global math
math = "division"
f_num = float(first_number)
display.delete(0, END)
def button_equal():
second_number = display.get()
display.delete(0, END)
if math == "addition":
display.insert(0, f_num + float(second_number))
if math == "subtraction":
display.insert(0, f_num - float(second_number))
if math == "multiplication":
display.insert(0, f_num * float(second_number))
if math == "division":
display.insert(0, f_num / float(second_number))
def button_exit():
root.quit()
# 创建按钮
button_1 = Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))
button_add = Button(root, text="+", padx=39, pady=20, command=button_add)
button_equal = Button(root, text="=", padx=91, pady=20, command=button_equal)
button_clear = Button(root, text="清空", padx=79, pady=20, command=button_clear)
button_subtract = Button(root, text="-", padx=41, pady=20, command=button_subtract)
button_multiply = Button(root, text="×", padx=40, pady=20, command=button_multiply)
button_divide = Button(root, text="÷", padx=41, pady=20, command=button_divide)
button_exit = Button(root, text="退出", padx=77, pady=20, command=button_exit)
# 显示按钮
button_1.grid(row=3, column=0)
button_2.grid(row=3, column=1)
button_3.grid(row=3, column=2)
button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)
button_7.grid(row=1, column=0)
button_8.grid(row=1, column=1)
button_9.grid(row=1, column=2)
button_0.grid(row=4, column=0)
button_clear.grid(row=4, column=1, columnspan=2)
button_add.grid(row=5, column=0)
button_equal.grid(row=5, column=1, columnspan=2)
button_subtract.grid(row=6, column=0)
button_multiply.grid(row=6, column=1)
button_divide.grid(row=6, column=2)
button_exit.grid(row=7, column=1, columnspan=2)
root.mainloop()
```
这个计算器界面中包含了数字按钮、加减乘除按钮、等于按钮、清空按钮和退出按钮。你可以根据自己的需求自定义界面。