问题
我必须从文本文件中获取元素,对角线,从顶部到按钮。它应该适用于letters.txt
的任何维度。该文件看起来像这样:
文字档案:letters.txt(我认为这很难,我删除了' Y'以及' Z'来自我原来的帖子
A B C D E F
G H I J K L
M N O P Q R
S T U V W X
列表应如下所示:
topButtom_List = ['AGMS', 'BHNT', 'CIOU', 'DJPV', 'EKQW', 'FLRX']
bLeftToURight = ['A', 'GB', 'MHC', 'SNID', 'TOJE', 'UPKF', 'VQL', 'WR', 'X']
我目前代码为top to buttom:
# top to buttom
topButtom_List = [] #should be ['AGMS', 'BHNT', 'CIOU', 'DJPV', 'EKQW', 'FLRX']
openFile = open("letters.txt")
for i in openFile:
i = i.replace(" ","")
length = len(i)
openFile.close()
openFile = open("letters.txt")
counter = 0
for eachIterration in range(length):
for line in openFile:
line = line.replace(" ","")
# counter should be added by 1 each time inner loop itterates x4, and outter loop x1.
topButtom_List.append(line[counter])
counter = counter + 1
openFile.close()
我尝试使用上述代码:
我试图从文本文件中获取顶部的buttom字符,并将其放入名为topButtom_List
的列表中。我使用counter来定义索引,对于外循环所做的每次迭代,索引都会加1。我看到的方式是,外循环将启动,内循环将迭代x4,并在其中添加AGMS
在第一次迭代时topButtom_List
,外部循环将再次迭代并向计数器添加1。第二次迭代将添加BHNTZ
,依此类推,外部循环将再次迭代并向计数器添加1。
从文本文件:letters.txt
我想填充topButtom_List
我得到的输出:
['A', 'G', 'M', 'S']
预期输出:
['AGMS', 'BHNT', 'CIOU', 'DJPV', 'EKQW', 'FLRX']
答案 0 :(得分:1)
#!/usr/bin/python3
field = """A B C D E F
G H I J K L
M N O P Q R
S T U V W X"""
arr = [col.split(' ') for col in [row.strip() for row in field.split('\n')]]
len_x, len_y = len(arr[0]), len(arr)
len_all = len_x + len_y - 1
lines, groups = [], []
for i in range(len_all):
start = (i, 0) if i < len_y else (len_y-1, i-len_y+1)
end = (0, i) if i < len_x else (i-len_x+1, len_x-1)
lines.append([start, end])
print('List of start and end points: ', lines)
for start, end in lines:
group = ''
for i in range(len_x):
y, x = start[0] - i, start[1] + i
if y >= 0 and y < len(arr) and x < len(arr[y]):
group += arr[y][x]
else:
groups.append(group)
break
print(groups)
返回
List of start and end points: [[(0, 0), (0, 0)], [(1, 0), (0, 1)],
[(2, 0), (0, 2)], [(3, 0), (0, 3)], [(3, 1), (0, 4)], [(3, 2), (0, 5)],
[(3, 3), (1, 5)], [(3, 4), (2, 5)], [(3, 5), (3, 5)]]
和
['A', 'GB', 'MHC', 'SNID', 'TOJE', 'UPKF', 'VQL', 'WR', 'X']