如何在tkinter中输入矩阵？

from tkinter import *
from tkinter import ttk

root = Tk()
table = ttk.Treeview(root)

table['columns'] = ('column1', 'column2', 'column3')
table.column('#0', width=0, stretch=NO)
table.column('column1', width=100, anchor=CENTER)
table.column('column2', width=100, anchor=CENTER)
table.column('column3', width=100, anchor=CENTER)

table.heading('#0', text='', anchor=CENTER)
table.heading('column1', text='Column 1', anchor=CENTER)
table.heading('column2', text='Column 2', anchor=CENTER)
table.heading('column3', text='Column 3', anchor=CENTER)

# 添加第一行
table.insert(parent='', index='end', iid=0, text='', values=('1', '2', '3'))

# 添加第二行
table.insert(parent='', index='end', iid=1, text='', values=('4', '5', '6'))

# 添加更多行...

# 显示表格
table.pack()

root = Tk()

# 创建一个文本框
matrix_entry = Entry(root)
matrix_entry.pack()

# 获取输入的矩阵
def get_matrix():
    matrix = matrix_entry.get()
    # 处理输入的矩阵
    print(matrix)

# 创建一个按钮来获取矩阵
button = Button(root, text='获取矩阵', command=get_matrix)
button.pack()

root.mainloop()