刪除字符

Question

我有一個字符矩陣，看起來是這樣的：

["AAAAAAAA", 
"AAAXAAAA", 
"AAAAAAAA"] 

我對X的位置，數字X/Y座標，我希望得到一個包含字符串矩陣中除x以外的所有字母，最好的方法是什麼？

Answer 1

不是最有效的，但出發點：

>>> matrix = [ 
...  "AAAAAAAA", 
...  "AAAXAAAA", 
...  "AAAAAAAA"] 
>>> x, y = 4, 2 

>>> linear = list(itertools.chain.from_iterable(matrix)) 
>>> del linear[x - 1 + (y - 1) * 8] 
>>> ''.join(linear) 
'AAAAAAAAAAAAAAAAAAAAAAA' 

Answer 2

好吧，這裏是用Python的真棒列表理解的解決方案：

coordinates = (1,3) # (line, column) 
matrix = ["AAAAAAAA", 
    "AAAXAAAA", 
    "AAAAAAAA"] 

matrix = [list(line) for line in matrix] # convert the strings to create a "real" matrix" 
del matrix[coordinates[0]][coordinates[1]] # delete the specified element 

"".join([item for line in matrix for item in line]) # flatten out the matrix and creating a string