用python设计一个具有四则运算且运算位可以是小数和整数且有人机界面的计算器

好的，我可以帮你实现这个计算器。我们可以使用Python的GUI库Tkinter来创建人机界面，并通过对用户输入的字符串进行解析来实现四则运算。以下是代码示例：

from tkinter import *
from decimal import Decimal

root = Tk()
root.title("四则运算计算器")

# 创建文本框
input_box = Entry(root, width=35, borderwidth=5)
input_box.grid(row=0, column=0, columnspan=4, padx=10, pady=10)


# 处理按钮点击事件
def button_click(number):
    current = input_box.get()
    input_box.delete(0, END)
    input_box.insert(0, str(current) + str(number))


def button_clear():
    input_box.delete(0, END)


def button_add():
    first_number = input_box.get()
    global f_num
    global math_operation
    math_operation = "addition"
    f_num = Decimal(first_number)
    input_box.delete(0, END)


def button_subtract():
    first_number = input_box.get()
    global f_num
    global math_operation
    math_operation = "subtraction"
    f_num = Decimal(first_number)
    input_box.delete(0, END)


def button_multiply():
    first_number = input_box.get()
    global f_num
    global math_operation
    math_operation = "multiplication"
    f_num = Decimal(first_number)
    input_box.delete(0, END)


def button_divide():
    first_number = input_box.get()
    global f_num
    global math_operation
    math_operation = "division"
    f_num = Decimal(first_number)
    input_box.delete(0, END)


def button_decimal():
    current = input_box.get()
    if "." not in current:
        input_box.delete(0, END)
        input_box.insert(0, str(current) + ".")


def button_equal():
    second_number = Decimal(input_box.get())
    input_box.delete(0, END)

    if math_operation == "addition":
        result = f_num + second_number
    elif math_operation == "subtraction":
        result = f_num - second_number
    elif math_operation == "multiplication":
        result = f_num * second_number
    elif math_operation == "division":
        result = f_num / second_number

    input_box.insert(0, result)


# 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_decimal = Button(root, text=".", padx=41, pady=20, command=button_decimal)
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="清空", padx=79, pady=20, command=button_clear)

# 将按钮放置到界面上
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_decimal.grid(row=4, column=1)
button_clear.grid(row=4, column=2)

button_add.grid(row=1, column=3)
button_subtract.grid(row=2, column=3)
button_multiply.grid(row=3, column=3)
button_divide.grid(row=4, column=3)

button_equal.grid(row=5, column=2, columnspan=2)
root.mainloop()

这个计算器支持小数和整数四则运算，界面与普通计算器差不多，你可以基于这个示例进一步优化和扩展。