Python使用tkinter实现计算器

以下是一个简单的基于Tkinter的计算器实现示例：

import tkinter as tk

class Calculator:
    def __init__(self):
        self.root = tk.Tk()
        self.root.title("Calculator")

        # 创建显示面板
        self.display = tk.Entry(self.root, width=20, font=('Arial', 16))
        self.display.grid(row=0, column=0, columnspan=4, pady=10)

        # 添加按钮
        # 第一行
        btn_clear = tk.Button(self.root, text='C', width=5, height=2, command=self.clear)
        btn_clear.grid(row=1, column=0)

        btn_divide = tk.Button(self.root, text='/', width=5, height=2, command=lambda: self.button_click('/'))
        btn_divide.grid(row=1, column=1)

        btn_multiply = tk.Button(self.root, text='*', width=5, height=2, command=lambda: self.button_click('*'))
        btn_multiply.grid(row=1, column=2)

        btn_delete = tk.Button(self.root, text='DEL', width=5, height=2, command=self.delete)
        btn_delete.grid(row=1, column=3)

        # 第二行
        btn_7 = tk.Button(self.root, text='7', width=5, height=2, command=lambda: self.button_click('7'))
        btn_7.grid(row=2, column=0)

        btn_8 = tk.Button(self.root, text='8', width=5, height=2, command=lambda: self.button_click('8'))
        btn_8.grid(row=2, column=1)

        btn_9 = tk.Button(self.root, text='9', width=5, height=2, command=lambda: self.button_click('9'))
        btn_9.grid(row=2, column=2)

        btn_minus = tk.Button(self.root, text='-', width=5, height=2, command=lambda: self.button_click('-'))
        btn_minus.grid(row=2, column=3)

        # 第三行
        btn_4 = tk.Button(self.root, text='4', width=5, height=2, command=lambda: self.button_click('4'))
        btn_4.grid(row=3, column=0)

        btn_5 = tk.Button(self.root, text='5', width=5, height=2, command=lambda: self.button_click('5'))
        btn_5.grid(row=3, column=1)

        btn_6 = tk.Button(self.root, text='6', width=5, height=2, command=lambda: self.button_click('6'))
        btn_6.grid(row=3, column=2)

        btn_plus = tk.Button(self.root, text='+', width=5, height=2, command=lambda: self.button_click('+'))
        btn_plus.grid(row=3, column=3)

        # 第四行
        btn_1 = tk.Button(self.root, text='1', width=5, height=2, command=lambda: self.button_click('1'))
        btn_1.grid(row=4, column=0)

        btn_2 = tk.Button(self.root, text='2', width=5, height=2, command=lambda: self.button_click('2'))
        btn_2.grid(row=4, column=1)

        btn_3 = tk.Button(self.root, text='3', width=5, height=2, command=lambda: self.button_click('3'))
        btn_3.grid(row=4, column=2)

        btn_equal = tk.Button(self.root, text='=', width=5, height=2, command=self.calculate)
        btn_equal.grid(row=4, column=3)

        # 第五行
        btn_0 = tk.Button(self.root, text='0', width=5, height=2, command=lambda: self.button_click('0'))
        btn_0.grid(row=5, column=0)

        btn_dot = tk.Button(self.root, text='.', width=5, height=2, command=lambda: self.button_click('.'))
        btn_dot.grid(row=5, column=1)

        btn_left = tk.Button(self.root, text='(', width=5, height=2, command=lambda: self.button_click('('))
        btn_left.grid(row=5, column=2)

        btn_right = tk.Button(self.root, text=')', width=5, height=2, command=lambda: self.button_click(')'))
        btn_right.grid(row=5, column=3)

    def run(self):
        self.root.mainloop()

    def button_click(self, char):
        self.display.insert(tk.END, char)

    def clear(self):
        self.display.delete(0, tk.END)

    def delete(self):
        self.display.delete(len(self.display.get()) - 1)

    def calculate(self):
        try:
            result = eval(self.display.get())
            self.display.delete(0, tk.END)
            self.display.insert(tk.END, result)
        except:
            self.display.delete(0, tk.END)
            self.display.insert(tk.END, "Error")


if __name__ == '__main__':
    calculator = Calculator()
    calculator.run()

这个实现非常基础，只支持基本的加减乘除和括号运算，并且没有做输入安全性检查，仅供参考。