简易计算器怎么弄可视化界面

你可以使用Python的图形用户界面库（GUI库）来实现简易计算器的可视化界面。比较常用的GUI库有Tkinter、PyQt、wxPython等。

以下是一个使用Tkinter库实现简易计算器的示例代码：

import tkinter as tk

class Calculator:
    def __init__(self, master):
        self.master = master
        master.title("Calculator")

        # 创建显示屏
        self.display = tk.Entry(master, width=30, borderwidth=5)
        self.display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

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

        # 创建操作符按钮
        self.button_add = tk.Button(master, text="+", padx=39, pady=20, command=self.button_add)
        self.button_subtract = tk.Button(master, text="-", padx=41, pady=20, command=self.button_subtract)
        self.button_multiply = tk.Button(master, text="*", padx=40, pady=20, command=self.button_multiply)
        self.button_divide = tk.Button(master, text="/", padx=41, pady=20, command=self.button_divide)
        self.button_clear = tk.Button(master, text="Clear", padx=79, pady=20, command=self.button_clear)
        self.button_equal = tk.Button(master, text="=", padx=91, pady=20, command=self.button_equal)

        # 将按钮放置在网格中
        self.button_1.grid(row=3, column=0)
        self.button_2.grid(row=3, column=1)
        self.button_3.grid(row=3, column=2)

        self.button_4.grid(row=2, column=0)
        self.button_5.grid(row=2, column=1)
        self.button_6.grid(row=2, column=2)

        self.button_7.grid(row=1, column=0)
        self.button_8.grid(row=1, column=1)
        self.button_9.grid(row=1, column=2)

        self.button_0.grid(row=4, column=0)
        self.button_clear.grid(row=4, column=1, columnspan=2)
        self.button_add.grid(row=5, column=0)
        self.button_subtract.grid(row=6, column=0)
        self.button_multiply.grid(row=6, column=1)
        self.button_divide.grid(row=6, column=2)
        self.button_equal.grid(row=5, column=1, columnspan=2)

        self.first_num = None
        self.operation = None
        self.is_new_num = True

    def button_click(self, number):
        current = self.display.get()
        self.display.delete(0, tk.END)
        self.display.insert(0, str(current) + str(number))
        self.is_new_num = False

    def button_clear(self):
        self.display.delete(0, tk.END)
        self.first_num = None
        self.operation = None

    def button_add(self):
        self.first_num = float(self.display.get())
        self.operation = "+"
        self.display.delete(0, tk.END)
        self.is_new_num = True

    def button_subtract(self):
        self.first_num = float(self.display.get())
        self.operation = "-"
        self.display.delete(0, tk.END)
        self.is_new_num = True

    def button_multiply(self):
        self.first_num = float(self.display.get())
        self.operation = "*"
        self.display.delete(0, tk.END)
        self.is_new_num = True

    def button_divide(self):
        self.first_num = float(self.display.get())
        self.operation = "/"
        self.display.delete(0, tk.END)
        self.is_new_num = True

    def button_equal(self):
        second_num = float(self.display.get())
        self.display.delete(0, tk.END)
        if self.operation == "+":
            result = self.first_num + second_num
        elif self.operation == "-":
            result = self.first_num - second_num
        elif self.operation == "*":
            result = self.first_num * second_num
        else:
            result = self.first_num / second_num
        self.display.insert(0, result)
        self.is_new_num = True

root = tk.Tk()
calculator = Calculator(root)
root.mainloop()

你可以将这段代码保存为.py文件，然后打开命令行窗口，切换到.py文件所在的目录，运行命令`python filename.py`，就可以启动简易计算器的可视化界面了。