固定纵横比的Tkinter大小调整

import tkinter as tk

class FixedAspectRatioFrame(tk.Frame):
    def __init__(self, master=None, aspect_ratio=1.0, **kwargs):
        tk.Frame.__init__(self, master, **kwargs)
        self.aspect_ratio = aspect_ratio
        self.bind("<Configure>", self.on_configure)

    def on_configure(self, event):
        new_width = event.width
        new_height = int(new_width / self.aspect_ratio)
        self.config(width=new_width, height=new_height)

# 创建一个固定纵横比为16:9的Frame
root = tk.Tk()
frame = FixedAspectRatioFrame(root, aspect_ratio=16/9)
frame.pack(fill=tk.BOTH, expand=True)

# 添加其他组件到Frame中
label = tk.Label(frame, text="Hello, World!")
label.pack()

root.mainloop()