我在努力改进战舰游戏。原始版本运行良好,没有错误。我写了一些代码来帮助克服这样一个事实:第一个版本每次都把船放在同一个地方,所以我从一艘船(由两个正方形组成)开始。我创建了两个函数:第一个生成一个随机坐标。。。
# Destroyer (2 squares)
def Deploy_Destroyer_1(Player):
rand_col_1 = randint(0,11)
if rand_col_1 <= 5:
rand_row_1 = randint(0,11)
else:
rand_row_1 = randint(6,11)
return rand_col_1
return rand_row_1
if Player[rand_row_1][rand_col_1] == 'X':
Deploy_Destroyer_1(Player)
else:
Deploy_Destroyer_2(Player)
而第二次试验则是根据条件进行协调(如果它能安装在板上,可以放置哪一个旋转)。
def Deploy_Destroyer_2(Player):
if rand_col_1 == 5 and rand_row_1 == 6:
#can be 1, 2, 3 or 4... in that order below
rand_position_1 = randint(1,4)
if rand_position_1 == 1:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 4:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif rand_col_1 in range(1,4) and rand_row_1 in range(1,10):
#can be any 1, 2, 3 or 4... in that order below
rand_position_1 = randint(1,4)
if rand_position_1 == 1:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 4:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif rand_col_1 in range(5,10) and rand_row_1 in range(7,10):
#can be any 1, 2, 3 or 4... in that order below
rand_position_1 = randint(1,4)
if rand_position_1 == 1:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 4:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif rand_col_1 == 0 and rand_row_1 == 0:
#can be any 1, 2, 3 or 4... in that order below
rand_position_1 = randint(1,4)
if rand_position_1 == 1:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 4:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif (rand_col_1 == 5 and rand_row_1 == 0) or (rand_col_1 == 11 and rand_row_1 ==6):
#can be one or four
#check brackets and booleans here
rand_position_1 = randint(1,2)
if rand_position_1 == 1: #position 1
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2: #position 4
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif rand_col_1 == 0 and rand_row_1 == 11:
#can be 2 or 3
rand_position_1 = randint(2,3)
if rand_position_1 == 2: #position 2
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3: #position 3
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
elif rand_col_1 == 11 and rand_row_1 == 11:
#can be 2 or 4
rand_position_1 = randint(1,2)
if rand_position_1 == 1: #position 2
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 2: #position 4
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif (rand_row_1 == 0 and rand_col_1 in range(1,4)) or (rand_row_1 == 6 and rand_col_1 in range(6,10)):
#can be 1, 3 or 4
#check brackets and booleans here
rand_position_1 = randint(1,3)
if rand_position_1 == 1: #position 1
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2: #position 3
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 3: #position 4
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif (rand_col_1 == 5 and rand_row_1 in range(1,5)) or (rand_col_1 == 11 and rand_row_1 in range(7,10)):
#can be 1, 2 or 4
#check brackets and booleans here
rand_position_1 = randint(1,3)
if rand_position_1 == 1: #position 1
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2: #position 2
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3: #position 4
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
elif rand_col_1 == 0 and rand_row_1 in range(1,10):
#can be 1, 2 or 3... in that order below
rand_position_1 = randint(1,3)
if rand_position_1 == 1:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 + 1][rand_col_1] = 2
if rand_position_1 == 2:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3:
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
elif rand_col_1 in range(1,10) and rand_row_1 == 11:
#can be 2, 3 or 4
rand_position_1 = randint(1,3)
if rand_position_1 == 2: #position 2
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1 - 1][rand_col_1] = 2
if rand_position_1 == 3: #position 3
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 + 1] = 2
if rand_position_1 == 4: #position 4
Player[rand_row_1][rand_col_1] = 2
Player[rand_row_1][rand_col_1 - 1] = 2
在应用代码之后,我得到了这个错误。
Traceback (most recent call last):
File "<stdin>", line 310, in <module>
File "<stdin>", line 15, in PrintBoards
TypeError: sequence item 0: expected string, NoneType found
这里是打印板功能
def PrintBoards(Player,Opponent):
print ' '*10, 'PLAYER', ' '*30, 'OPPONENT'
letters = ['A','B','C','D','E','F','G','H','I','J','K','L']
for x in range(6):
print letters[x]," ".join(map(DisplayChar,Player[x]))," "*18,"| "," ".join(map(DisplayChar,Opponent[x]))
for x in range(6,12):
print letters[x]," ".join(map(DisplayChar,Player[x]))," | "," ".join(map(DisplayChar,Opponent[x]))
print " "," ".join(map(str,range(1,10)))," 10 11 12"," "," ".join(map(str,range(1,10)))," 10 11 12"
这里是DisplayChar函数
def DisplayChar(x):
if x==0:
return '?'
elif x==1:
return ' '
elif x==2:
return 'X'
elif x==3:
return ' '
elif x==4:
return '*'
我试着把上面的函数编辑成。。。
def DisplayChar(x):
if x==0:
return '?'
elif x==2:
return 'X'
elif x==4:
return '*'
else:
return ' '
但是它给了我这个错误
Traceback (most recent call last):
File "<stdin>", line 309, in <module>
File "<stdin>", line 15, in PrintBoards
TypeError: argument 2 to map() must support iteration
我还尝试在PrintBoards函数之后打印lists Player和Opponent,以确保它们包含0和1(指DisplayChar函数),它们确实包含0和1(当插入到原始文件中时,而不是当我放入新的非常长的代码时)
下一段是对迈克尔的回应
PLAYER OPPONENT
[[1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 1, 1], [1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1], [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 1, 1], [1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]]
[0, 0, 0, 0, 0, 0]
A | ? ? ? ? ? ?
<function Deploy_Destroyer_1 at 0x1c2634>
[0, 0, 0, 0, 0, 0]
B
Traceback (most recent call last):
File "<stdin>", line 314, in <module>
File "<stdin>", line 17, in PrintBoards
TypeError: argument 2 to map() must support iteration
编辑
在有人善意地指出我分配了函数而不是调用它之后,我发现又发生了一个错误(我认为Python不喜欢我)
Traceback (most recent call last):
File "<stdin>", line 313, in <module>
File "<stdin>", line 17, in PrintBoards
TypeError: argument 2 to map() must support iteration
下面我还包括了我调用函数的位置,以防我做了一些愚蠢的事情
Player, Opponent = InitBoards()
Player = DeployFleet(Player), Deploy_Destroyer_1(Player)
PrintBoards(Player,Opponent)
编辑2
我把它改成Micheal0x2a所说的,它运行时没有任何错误,但是代码所在的ship消失了:s
据我所知,PrintBoards
函数通过将列表中的项映射到DisplayChar
函数来打印Player
的板(如果2是列表中的项,则它打印X等)。所以我的新手知识告诉我,Deploy_Destroyer_1
函数中的Player =
应该调用Main
函数中的Player =
,以确保列表中的项被更改,因此打印的字符应该更改。
我猜我的新代码(Deploy_Destroyer_1
)有问题,它没有正确地执行此操作(或者没有更改列表中的项,因此没有打印正确的字符,或者其他一些我想不起来的字符)。
不过,我也很有可能把自己搞糊涂了:)
我只学了几个星期的Python,所以如果有人需要更多的细节来帮助我,请询问
如果你来到这里是因为你在寻找“
TypeError: sequence item 0: expected string, NoneType found
”的根本原因,那么它可能来自于沿着这些路线做的事情。。。问题很可能出现在这4行中的某个地方:
在这些行中,您多次使用了
join
语句。join
语句需要字符串列表才能工作。但是,当您将DisplayChar
映射到Player[x]
时,DisplayChar
函数将返回值None
,而不是某种字符串。如果查看
DisplayChar
函数,它只处理0到4之间的值。您使用的列表可能包含其他数字或字符。如果x
碰巧与5
类似,则DisplayChar
将终止并简单地返回值None
。记住,函数默认返回值None
。您要么需要在
DisplayChar
中处理这些额外的数字,要么修改DisplayChar
以包含else
语句以返回空字符串,如下所示:编辑:
好吧,考虑到新的编辑,我想我可能知道发生了什么。
注意当你打印
Player[x]
时,它第二次打印<function Deploy_Destroyer_1 at 0x1c2634>
?这意味着,在代码的某个地方,您已经做了一些影响
Player[row] = Deploy_Destroyer_1
(注意缺少的括号!)的事情。不是调用函数,而是给函数赋值。寻找并添加缺少的括号最有可能解决问题。
编辑2:
我认为你的问题在于这行:
Player = DeployFleet(Player), Deploy_Destroyer_1(Player)
如果您尝试在之后立即执行
print Player
,我认为您很可能会看到一个很大的数字列表,然后是None
。这是因为
DeployFleet
函数正在返回表(我认为?)而Deploy_Destroyer_1
函数不返回任何内容。相反,它只是改变了Player
表。要解决此问题,请尝试执行以下任一操作:
…或者修改
Deployer_Destroyer_1
,以便在完成后返回Player
,这样您就可以:DisplayChar函数没有默认值。如果你要处理所有可能的案件,这不会有什么坏处,但显然你没有。试试看
但这可能会在您不期望的地方产生空白字符串。
一般来说,我建议先学习一个好的Python教程。以上所有代码都可以大大简化。
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