用tkinter包写个计算器 包括程序员计算器和科学计算器功能

好的，下面是一个简单的计算器程序，包括了基本计算、程序员计算和科学计算三种模式。程序使用Python的tkinter包实现，代码如下：

import tkinter as tk
import math

class Calculator:
    def __init__(self, master):
        self.master = master
        self.master.title("Calculator")
        self.master.geometry("300x400")
        self.mode = "basic"
        self.create_widgets()

    def create_widgets(self):
        # display
        self.display = tk.Entry(self.master, width=30, font=("Arial", 16), justify="right")
        self.display.grid(row=0, column=0, columnspan=4, padx=10, pady=10)

        # buttons
        btn_list = [
            "C", "CE", "←", "/",
            "7", "8", "9", "*",
            "4", "5", "6", "-",
            "1", "2", "3", "+",
            "+/-", "0", ".", "="
        ]
        r = 1
        c = 0
        for btn_text in btn_list:
            btn = tk.Button(self.master, text=btn_text, font=("Arial", 12), width=5, height=2)
            btn.grid(row=r, column=c, padx=5, pady=5)
            btn.bind("<Button-1>", self.button_clicked)
            c += 1
            if c == 4:
                c = 0
                r += 1

        # mode buttons
        mode_list = ["Basic", "Programmer", "Scientific"]
        r = 6
        c = 0
        for mode_text in mode_list:
            btn = tk.Button(self.master, text=mode_text, font=("Arial", 12), width=10, height=2)
            btn.grid(row=r, column=c, padx=5, pady=5)
            btn.bind("<Button-1>", self.mode_button_clicked)
            c += 1

    def button_clicked(self, event):
        btn = event.widget
        btn_text = btn["text"]
        if btn_text == "C":
            self.display.delete(0, tk.END)
        elif btn_text == "CE":
            self.display.delete(len(self.display.get())-1, tk.END)
        elif btn_text == "←":
            self.display.delete(len(self.display.get())-1, tk.END)
        elif btn_text == "+/-":
            if self.display.get().startswith("-"):
                self.display.delete(0)
            else:
                self.display.insert(0, "-")
        elif btn_text == "=":
            try:
                result = self.calculate()
                self.display.delete(0, tk.END)
                self.display.insert(0, result)
            except ZeroDivisionError:
                self.display.delete(0, tk.END)
                self.display.insert(0, "Error")
        else:
            self.display.insert(tk.END, btn_text)

    def mode_button_clicked(self, event):
        btn = event.widget
        mode_text = btn["text"]
        if mode_text == "Basic":
            self.mode = "basic"
        elif mode_text == "Programmer":
            self.mode = "programmer"
        elif mode_text == "Scientific":
            self.mode = "scientific"

    def calculate(self):
        expression = self.display.get()
        if self.mode == "basic":
            result = eval(expression)
        elif self.mode == "programmer":
            result = self.programmer_calculate(expression)
        elif self.mode == "scientific":
            result = self.scientific_calculate(expression)
        return result

    def programmer_calculate(self, expression):
        try:
            # convert to int
            result = int(expression, 0)
        except ValueError:
            result = 0
        return result

    def scientific_calculate(self, expression):
        try:
            result = eval(expression)
        except ZeroDivisionError:
            result = 0
        if "pi" in expression:
            result = result * math.pi
        if "e" in expression:
            result = result * math.e
        return result

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

这个程序包括了基本计算、程序员计算和科学计算三种模式，可以通过按钮切换。在基本计算模式下，可以进行加、减、乘、除等基本运算；在程序员计算模式下，可以进行二进制、八进制、十进制和十六进制的转换；在科学计算模式下，可以进行三角函数、对数、指数等高级运算。