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调用重置功能时，仅清除条目的最后一行

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我正在练习python的基本概念，并尝试在Tkinter的帮助下对'SUDOKU'游戏进行编程。但是，当我尝试使用reset函数清除所有Entry字段时，程序发生冲突，因为只有最后一行的Entries被执行，除了整个2D列表。

def reset():
    for i in range(0,rows,1):
        for j in range(0,cols,1):
            col[i][j].delete(0,"end")

from Tkinter import Tk,Canvas,Entry,Button,CENTER,IntVar

root = Tk()

screen = Canvas(root,height = 430,width = 460)
screen.pack()

screen.create_text(200,15,text = 'SUDOKU',font = 'calibri 20 bold')

screen.create_line(127,54,127,408)
screen.create_line(232,232,408)

screen.create_line(24,170,336,170)
screen.create_line(24,290,290)

check_button = Button(root,text = 'Check',font = 'Calibri 10 bold',bd = 0,bg = 'Green',fg = 'white',padx = 10,pady = 5)
screen.create_window(400,70,window = check_button)

reset_button = Button(root,text = 'Reset',bg = 'Red',pady = 5,command = reset)
screen.create_window(400,110,window = reset_button)

x,y,n = 0,0

cols,values = 9,9,81

col = [[None]*cols]*rows
val = [[IntVar]*cols]*rows

for i in range(0,1):
    x = 0
    if i == 0:
        y += 70 
    else:
        y += 40
    for j in range(0,1):
        x += 40
        col[i][j] = Entry(root,width = 2,font = 'Calibri 20',justify = CENTER)
        screen.create_window(x,window = col[i][j])
        x -= 5

root.mainloop()
wobushiren1314 回答：调用重置功能时，仅清除条目的最后一行

构造col和val的方式将创建9行，这些行指向相同的9列。仅创建一行，然后指向9次

cols,rows,values = 9,9,81
col = [[None]*cols]*rows
col
# [[None,None,None],#  [None,None]]

col[0][1]=100
col
# [[None,100,#  [None,None]]

类似的事情应该起作用。

col = []  # Empty lists
val =[]

for i in range(0,1):
    x = 0
    if i == 0:
        y += 70 
    else:
        y += 40
    rowc = []  # Empty row lists
    rowv = []
    for j in range(0,cols,1):
        x += 40
        v = IntVar()
        ent = Entry(root,width = 2,textvariable=v,font = 'Calibri 20',bd = 0,justify = CENTER)
        screen.create_window(x,y,window = ent)
        rowc.append(ent)   # Append to the rows
        rowv.append(v)
        x -= 5
    col.append(rowc)  # Append rows to the column lists
    val.append(rowv)
python-3.xtkintertkinter-canvastkinter-entry
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