python简易计算器代码

抱歉，我之前的回答有误。以下是关于 C 语言 的回答：

问题：什么是指针？
回答：指针是一个变量，其值为另一个变量的地址。通过指针，可以直接访问该地址上存储的数据。

示例代码：

int num = 10;
int *p = # // 定义指向 int 类型变量的指针 p，并将其赋值为 num 的地址
printf("%d", *p); // 输出指针 p 所指向的变量的值，即 num 的值

相关问题

python简易计算器代码并可视化

下面是一个简单的Python计算器代码：

from tkinter import *

# 创建主窗口
root = Tk()
root.title("简易计算器")

# 显示结果的文本框
result = Entry(root, width=40, borderwidth=5)
result.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

# 定义按钮点击函数
def button_click(num):
    current = result.get()
    result.delete(0, END)
    result.insert(0, str(current) + str(num))

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

def button_add():
    first_number = result.get()
    global f_num
    global math
    math = "addition"
    f_num = int(first_number)
    result.delete(0, END)

def button_subtract():
    first_number = result.get()
    global f_num
    global math
    math = "subtraction"
    f_num = int(first_number)
    result.delete(0, END)

def button_multiply():
    first_number = result.get()
    global f_num
    global math
    math = "multiplication"
    f_num = int(first_number)
    result.delete(0, END)

def button_divide():
    first_number = result.get()
    global f_num
    global math
    math = "division"
    f_num = int(first_number)
    result.delete(0, END)

def button_equal():
    second_number = result.get()
    result.delete(0, END)
    if math == "addition":
        result.insert(0, f_num + int(second_number))
    elif math == "subtraction":
        result.insert(0, f_num - int(second_number))
    elif math == "multiplication":
        result.insert(0, f_num * int(second_number))
    elif math == "division":
        result.insert(0, f_num / int(second_number))

# 定义按钮
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="清空", padx=79, pady=20, command=button_clear)

# 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_add.grid(row=5,column=0)
button_subtract.grid(row=6,column=0)
button_multiply.grid(row=6,column=1)
button_divide.grid(row=6,column=2)

button_equal.grid(row=5,column=1,columnspan=2)
button_clear.grid(row=4,column=1,columnspan=2)

root.mainloop()

这个计算器使用了Python的GUI库Tkinter来构建。它支持加、减、乘、除四种基本运算，同时还支持清空操作和连续计算。您可以将此代码复制到Python IDE或文本编辑器中，并保存为.py文件运行。

关于可视化，运行代码后会弹出一个简单的窗口，其中包含一个文本框用于显示计算结果和一些按钮用于输入数字和操作符。

python简易计算器程序代码

以下是一个简单的Python计算器程序的代码示例：

import tkinter as tk

def button_click(number):
    current = entry.get()
    entry.delete(0, tk.END)
    entry.insert(tk.END, current + str(number))

def button_clear():
    entry.delete(0, tk.END)

def button_equal():
    expression = entry.get()
    result = eval(expression)
    entry.delete(0, tk.END)
    entry.insert(tk.END, result)

root = tk.Tk()
root.title("简易计算器")

entry = tk.Entry(root, width=30, borderwidth=5)
entry.grid(row=0, column=0, columnspan=3, padx=10, pady=10)

button_1 = tk.Button(root, text="1", padx=40, pady=20, command=lambda: button_click(1))
button_2 = tk.Button(root, text="2", padx=40, pady=20, command=lambda: button_click(2))
button_3 = tk.Button(root, text="3", padx=40, pady=20, command=lambda: button_click(3))
button_4 = tk.Button(root, text="4", padx=40, pady=20, command=lambda: button_click(4))
button_5 = tk.Button(root, text="5", padx=40, pady=20, command=lambda: button_click(5))
button_6 = tk.Button(root, text="6", padx=40, pady=20, command=lambda: button_click(6))
button_7 = tk.Button(root, text="7", padx=40, pady=20, command=lambda: button_click(7))
button_8 = tk.Button(root, text="8", padx=40, pady=20, command=lambda: button_click(8))
button_9 = tk.Button(root, text="9", padx=40, pady=20, command=lambda: button_click(9))
button_0 = tk.Button(root, text="0", padx=40, pady=20, command=lambda: button_click(0))

button_add = tk.Button(root, text="+", padx=39, pady=20, command=lambda: button_click("+"))
button_subtract = tk.Button(root, text="-", padx=41, pady=20, command=lambda: button_click("-"))
button_multiply = tk.Button(root, text="*", padx=40, pady=20, command=lambda: button_click("*"))
button_divide = tk.Button(root, text="/", padx=41, pady=20, command=lambda: button_click("/"))

button_equal = tk.Button(root, text="=", padx=91, pady=20, command=button_equal)
button_clear = tk.Button(root, text="清除", padx=79, pady=20, command=button_clear)

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_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=4, column=1, columnspan=2)
button_clear.grid(row=5, column=0, columnspan=4)

root.mainloop()