我正在使用 Python3 TTK Treeview 来显示一棵树。但首先，子节点没有缩进，只有树的第一个子级别是可见的。父子节点不显示其子节点。
from tkinter import *
from tkinter.ttk import *
Win = Tk()
entries_tree = Treeview(Win, columns = ("Glyph", "Name"), show="tree")
entries_tree.column("#0", width = 20)
entries_tree.column("#1", width = 20)
entries_tree.pack()
#Test
Un = entries_tree.insert("", "end", values = ["X", "Un"])
Deux = entries_tree.insert("", "end", values = ["X", "Deux"])
Trois = entries_tree.insert(Un, "end", values = ["X", "Un Un"], open = True)
Quatre = entries_tree.insert(Un, "end", values = ["X", "Un Deux"])
Cinq = entries_tree.insert(Un, "end", values = ["X", "Un Trois"]) …