values 值是路径时无法识别是怎么回事？

2个问题
1.请问（tree.F2 = tree.insert("",1,"英国",text="英国",values=("F:\software python\学习资料"))），中的  values 值是路径时无法识别是怎么回事？
2.如何设置各个节点是不展开的？


谢谢各位啦！！！


import tkinter
from tkinter import ttk

win = tkinter.Tk()
win.title("fcl")
win.geometry("400x400")

tree =ttk.Treeview(win)
tree.F1 = tree.insert("",0,"中国",text="中国",values=("zzzz"))
tree.F2 = tree.insert("",1,"英国",text="英国",values=("F:\software python\学习资料"))

tree.pack()

ev = tkinter.Variable()
entry = tkinter.Entry(win,textvariable=ev)
entry.pack()


def func(event):
    v = event.widget.selection()
    for sv in v:
        file = tree.item(sv)["text"]
        ev.set(file)
        print(file)
        apath = tree.item(sv)["values"][0]
        print("apath",apath)



tree.bind("<<TreeviewSelect>>",func)
win.mainloop()