在python tic tac toe game

Question

非常新的编程，并希望帮助我的代码。 check_game（）在填充时将row1check变为True。然后结束游戏应该开始，但它没有。我已经提供了打印声明来证明row1check确实变为true。

感谢您的帮助。

   matrix =[]

   row1 = [" ", " ", " "]
   row2 = [" ", " ", " "]
   row3 = [" ", " ", " "]
   row1check = False
   row2check = False
   row3check = False

def draw_matrix ():
   print row1
   print row2
   print row3

def check_game () :
   if not " " in row1:
      row1check = True
      print row1check
   if " " not in row2:
      row2check = True
   if " " not in row3:
      row3check = True


def end_game() :
   if row1check == True:
       print "End of Game!"
   else:
       print "Keep going"


def x_turn ():
  while end_game != 3 :
    move = raw_input("Player X Enter coordinates 'row,col': ")

    row = move[0]
    column = move[2]

    if row == "1" and column == "1" and row1[0] == " ":
        row1[0] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "1" and column == "2" and row1[1] == " ":
        row1[1] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "1" and column == "3" and row1[2] == " ":
        row1[2] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "2" and column == "1" and row2[0] == " ":
        row2[0] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "2" and column == "2" and row2[1] == " ":
        row2[1] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "2" and column == "3" and row2[2] == " ":
        row2[2] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "3" and column == "1" and row3[0] == " ":
        row3[0] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "3" and column == "2" and row3[1] == " ":
        row3[1] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
    if row == "3" and column == "3" and row3[2] == " ":
        row3[2] = "x"
        draw_matrix()
        check_game()
        end_game()
        o_turn()
print "End of Game!"

def o_turn ():
  while end_game != 3 :
    move = raw_input("Player O Enter coordinates 'row,col': ")

    row = move[0]
    column = move[2]

    if row == "1" and column == "1" and row1[0] == " ":
        row1[0] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "1" and column == "2" and row1[1] == " ":
        row1[1] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "1" and column == "3" and row1[2] == " ":
        row1[2] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "2" and column == "1" and row2[0] == " ":
        row2[0] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "2" and column == "2" and row2[1] == " ":
        row2[1] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "2" and column == "3" and row2[2] == " ":
        row2[2] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "3" and column == "1" and row3[0] == " ":
        row3[0] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "3" and column == "2" and row3[1] == " ":
        row3[1] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
    if row == "3" and column == "3" and row3[2] == " ":
        row3[2] = "O"
        draw_matrix()
        check_game()
        end_game()
        x_turn()
print "End of Game!"
x_turn()

Answer 1

这是因为所有以下变量都需要使用关键字global声明，否则，在函数内部它将被视为局部变量

global matrix =[]

global row1 = [" ", " ", " "]
global row2 = [" ", " ", " "]
global row3 = [" ", " ", " "]
global row1check = False
global row2check = False
global row3check = False

而且，在函数中使用它们时，首先让python理解它与全局变量相同，在函数定义中再次将它定义为全局row1等。

def check_game () :
global row1check
global row2check
global row3check
global row1
global row2
global row3
if not " " in row1:
    row1check = True
    print row1check
if " " not in row2:
    row2check = True
if " " not in row3:
    row3check = True

因此，请记住关于全局变量的整个代码。