定义一个生成器函数权限,该功能接受一个数字列表和一个非负整数n。实现该函数,以便它使用lst元素生成长度恰好为n的所有排列。假设lst的元素是唯一的,并且n
ttt = Tk()
ttt.title("Tic Tac Toe")
w = Canvas(ttt,width = 902,height = 902)
w.configure (bg = "white")
w.pack()
m = [[0,0],[0,0]]
def drawx(event):
x,y = event.x,event.y
w.create_line(49,49,249,fill = "black")
w.create_line(49,fill = "black")
def drawo(event):
x2,y2 = event.x,event.y
x0 = x2 - 100
y0 = y2 - 100
x1 = x2 + 100
y1 = y2 + 100
return w.create_oval(x0,y0,x1,y1)
w.create_line(0,300,901,fill = "black")
w.create_line(0,601,fill = "black")
w.create_line(300,fill = "black")
w.create_line(601,fill = "black")