如何随机化切片？

我正在试图制作战列舰，并且我正在将这些舰船列入“单板”列表中，并且船只的长度将由切片决定。我试图随机移动船只，但我很快意识到random.choice一次只能移动一个元素，但船只有2-5个元素。我正在尝试查看是否可以将列表中的切片随机分配到切片上分配的单位。 random.shuffle似乎不起作用。如何随机化切片？

import random 

board = "o" 

board = [board] * 49 

ship_two_space = board[0:2] 

ship_three_space = board[0:3] 

ship_three_space_second = board[0:3] 

ship_four_space = board[0:4] 

ship_five_space = board[0:5]

来源

2016-12-03 Victor Nwadike

您的问题完全不清楚，您提供的代码根本没有帮助，因为它没有显示您尝试或尝试执行的操作。 – Julien

切片始终从0开始？什么是电路板尺寸？ – wwii

船舶位置不能重叠 - 使用一组给

occupied = set()

文件所占用的空间定义规格

N = 49 
board = ['o'] * N 
ship_specs = [('two_space', 2), ('three_space1', 3), ('three_space2', 3), 
       ('four_space', 4), ('five_space', 5)]

开始制作船 - 利用collections.namedtuple到定义船

Ship = collections.namedtuple('Ship', ('name','indices', 'slice')) 

def get_position(length): 
    '''Determine the unique position indices of a ship''' 

    start = random.randint(0, N-length) 
    indices = range(start, start + length) 
    if not occupied.intersection(indices): 
     occupied.update(indices) 
     return indices, slice(start, start + length) 
    else: 
     return get_position(length) 

ships = [] 

for name, length in ship_specs: 
    indices, _slice = get_position(length) 
    ships.append(Ship(name, indices, _slice)) 


print(board) 
for ship in ships: 
    board[ship.slice] = str(len(ship.indices))*len(ship.indices) 
print(board) 
print([(ship.name, ship.slice) for ship in ships]) 

>>> 
['o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o'] 
['o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', '2', '2', '4', '4', '4', '4', '3', '3', '3', 'o', '5', '5', '5', '5', '5', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', 'o', '3', '3', '3', 'o', 'o', 'o'] 
[('two_space', slice(10, 12, None)), ('three_space1', slice(43, 46, None)), ('three_space2', slice(16, 19, None)), ('four_space', slice(12, 16, None)), ('five_space', slice(20, 25, None))] 
>>>

来源

2016-12-03 04:38:10 wwii

如何随机化切片？

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