首先我们需要创建两个函数，第一个函数用来显示游戏板:

def print_board():
 for i in range(0,3):
 for j in range(0,3):
 print map[2-i][j],
 if j != 2:
 print "|",
 print ""

这我们使用两个for循环来遍历map，该map是一个包含了位置信息的二维数组。

游戏板看起来是这样的:

| | 
| | 
| |
 
X | X | 
O | X | O
 | O | X
 
X | X | X
X | X | X
X | X | X

下面我们需要一个函数check_done()来检查游戏是否结束。如果结束，则返回True并打印消息。

def check_done():
 for i in range(0,3):
 if map[i][0] == map[i][1] == map[i][2] != " " 
 or map[0][i] == map[1][i] == map[2][i] != " ":
 print turn, "won!!!"
 return True
 
 if map[0][0] == map[1][1] == map[2][2] != " " 
 or map[0][2] == map[1][1] == map[2][0] != " ":
 print turn, "won!!!"
 return True
 
 if " " not in map[0] and " " not in map[1] and " " not in map[2]:
 print "Draw"
 return True
 
 return False

有几个地方需要检查，首先检查水平和垂直方向，是否有一行或一列不为空且包含有三个相同的符号，然后我们再检查斜方向。如果上面有一个方向满足，游戏结束并打印“Won!!!”。请注意检查变量改变，它用来标记当前是哪一位玩家。

同时我们需要检查当前游戏板是否被填满且没有人获胜，游戏平局。

有了上面的两个函数，下面我们创建3个变量:

turn = "X"
map = [[" "," "," "],
 [" "," "," "],
 [" "," "," "]]
done = False

turn : 轮到谁
map : 游戏板
done : 游戏是否结束

现在启动游戏:

while done != True:
 print_board()
 
 print turn, "'s turn"
 print
 
 moved = False
 while moved != True:

这里使用了while循环直到游戏结束并返回true.在这个循环里面，使用了另外一个while循环来检查玩家是否移动，如果玩家没有移动，则程序会跳到下一次循环。

下一步告诉玩家怎么玩:

print "Please select position by typing in a number between 1 and 9, see below for which number that is which position..."
 print "7|8|9"
 print "4|5|6"
 print "1|2|3"
 print
 
try:
 pos = input("Select: ")
 if pos <=9 and pos >=1:

我们期望玩家输入一个数字，检查该数字是否是在1到9之间。另外，我们这里需要一段错误处理逻辑，我们还需要需要检查玩家是否能移动到一个位置:

Y = pos/3
 X = pos%3
 if X != 0:
 X -=1
 else:
 X = 2
 Y -=1

以下是全部的代码:

def print_board():
 for i in range(0,3):
 for j in range(0,3):
 print map[2-i][j],
 if j != 2:
 print "|",
 print ""
 
 
def check_done():
 for i in range(0,3):
 if map[i][0] == map[i][1] == map[i][2] != " " 
 or map[0][i] == map[1][i] == map[2][i] != " ":
 print turn, "won!!!"
 return True
 
 if map[0][0] == map[1][1] == map[2][2] != " " 
 or map[0][2] == map[1][1] == map[2][0] != " ":
 print turn, "won!!!"
 return True
 
 if " " not in map[0] and " " not in map[1] and " " not in map[2]:
 print "Draw"
 return True
 
 
 return False
 
 
 
 
 
turn = "X"
map = [[" "," "," "],
 [" "," "," "],
 [" "," "," "]]
done = False
 
 
while done != True:
 print_board()
 
 print turn, "'s turn"
 print
 
 moved = False
 while moved != True:
 print "Please select position by typing in a number between 1 and 9,
 see below for which number that is which position..."
 print "7|8|9"
 print "4|5|6"
 print "1|2|3"
 print
 
 try:
 pos = input("Select: ")
 if pos <=9 and pos >=1:
 Y = pos/3
 X = pos%3
 if X != 0:
 X -=1
 else:
 X = 2
 Y -=1
 
 if map[Y][X] == " ":
 map[Y][X] = turn
 moved = True
 done = check_done()
 
 if done == False:
 if turn == "X":
 turn = "O"
 else:
 turn = "X"
 
 
 except:
 print "You need to add a numeric value"