使用 Python Tkinter 创建带计算功能的窗口

要生成一个窗口，并在窗口中包含所需的输入框、按钮和显示屏幕，可以使用 Python 的 GUI 库 tkinter。以下是一个示例代码：

import tkinter as tk

def calculate():
    weight = float(weight_entry.get())
    cost = float(cost_entry.get())
    discount = float(discount_entry.get())
    profit_margin = float(profit_margin_entry.get())
    exchange_rate = float(exchange_rate_entry.get())
    commission = float(commission_entry.get())
    
    price = (cost + commission) / (1 - profit_margin)
    total_price = price * (1 - discount)
    total_price_in_rmb = total_price * exchange_rate
    
    output_text.delete(1.0, tk.END)
    output_text.insert(tk.END, f'Price: {price}
')
    output_text.insert(tk.END, f'Total Price: {total_price}
')
    output_text.insert(tk.END, f'Total Price in RMB: {total_price_in_rmb}
')

window = tk.Tk()
window.title('Calculator')
window.geometry('400x500')

weight_label = tk.Label(window, text='Weight')
weight_label.pack()
weight_entry = tk.Entry(window)
weight_entry.pack()

cost_label = tk.Label(window, text='Cost')
cost_label.pack()
cost_entry = tk.Entry(window)
cost_entry.pack()

discount_label = tk.Label(window, text='Discount')
discount_label.pack()
discount_entry = tk.Entry(window)
discount_entry.pack()

profit_margin_label = tk.Label(window, text='Profit Margin')
profit_margin_label.pack()
profit_margin_entry = tk.Entry(window)
profit_margin_entry.pack()

exchange_rate_label = tk.Label(window, text='Exchange Rate')
exchange_rate_label.pack()
exchange_rate_entry = tk.Entry(window)
exchange_rate_entry.pack()

commission_label = tk.Label(window, text='Commission')
commission_label.pack()
commission_entry = tk.Entry(window)
commission_entry.pack()

calculate_button = tk.Button(window, text='Calculate', command=calculate)
calculate_button.pack()

output_text = tk.Text(window, width=30, height=40)
output_text.pack()

window.mainloop()

运行这段代码，就会生成一个包含所需功能的窗口。用户可以在输入框中输入相关参数，然后点击计算按钮，计算结果将会显示在屏幕上。