tkinker顶级窗口 ：Toplevel

Toplevel（顶级窗口），类似于弹出窗口，具有独立的窗口属性（如标题栏、边框等）

import tkinter as tk
# 建立窗口
window = tk.Tk()
window.title('hello thinter')
height= window.winfo_screenheight()
width= window.winfo_screenwidth()
window.geometry('400x200+%d+%d'%((width-400)/2,(height-200)/2))

def create():
    top = tk.Toplevel()
    top.title("tkinter")

    msg = tk.Message(top, text="hello thinter!")
    msg.pack()

tk.Button(window, text="创建顶级窗口", command=create).pack()

window.mainloop()