如果你只需要一个字符数组:

arr = list(str)

如果你想用一个特定的分隔符分隔str:

# str = "temp//temps" will will be ['temp', 'temps']
arr = str.split("//")

好吧，尽管我很喜欢列表的版本，这里是我发现的另一种更详细的方法(但它很酷，所以我想我将它添加到争论中):

>>> text = "My hovercraft is full of eels"
>>> [text[i] for i in range(len(text))]
['M', 'y', ' ', 'h', 'o', 'v', 'e', 'r', 'c', 'r', 'a', 'f', 't', ' ', 'i', 's', ' ', 'f', 'u', 'l', 'l', ' ', 'o', 'f', ' ', 'e', 'e', 'l', 's']

我探索了另外两种方法来完成这项任务。它可能对某人有帮助。

第一个很简单:

In [25]: a = []
In [26]: s = 'foobar'
In [27]: a += s
In [28]: a
Out[28]: ['f', 'o', 'o', 'b', 'a', 'r']

第二个使用map和函数。它可能适用于更复杂的任务:

In [36]: s = 'foobar12'
In [37]: a = map(lambda c: c, s)
In [38]: a
Out[38]: ['f', 'o', 'o', 'b', 'a', 'r', '1', '2']

例如

# isdigit, isspace or another facilities such as regexp may be used
In [40]: a = map(lambda c: c if c.isalpha() else '', s)
In [41]: a
Out[41]: ['f', 'o', 'o', 'b', 'a', 'r', '', '']

有关更多方法，请参阅python文档

解压缩:

word = "Paralelepipedo"
print([*word])

如果希望只读访问字符串，可以直接使用数组表示法。

Python 2.7.6 (default, Mar 22 2014, 22:59:38) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> t = 'my string'
>>> t[1]
'y'

对于不使用regexp的测试可能很有用。 字符串是否包含结束换行符?

>>> t[-1] == '\n'
False
>>> t = 'my string\n'
>>> t[-1] == '\n'
True

下面是一个很好的脚本，可以帮助你找到最有效的方法:

import timeit
from itertools import chain

string = "thisisthestringthatwewanttosplitintoalist"

def getCharList(str):
  return list(str)

def getCharListComp(str):
  return [char for char in str]

def getCharListMap(str):
  return list(map(lambda c: c, str))

def getCharListForLoop(str):
  list = []
  for c in str:
    list.append(c)

def getCharListUnpack(str):
  return [*str]

def getCharListExtend(str):
  list = []
  return list.extend(str)

def getCharListChain(str):
  return chain(str)
 
time_list = timeit.timeit(stmt='getCharList(string)', globals=globals(), number=1)
time_listcomp = timeit.timeit(stmt='getCharListComp(string)', globals=globals(), number=1)
time_listmap = timeit.timeit(stmt='getCharListMap(string)', globals=globals(), number=1)
time_listforloop = timeit.timeit(stmt='getCharListForLoop(string)', globals=globals(), number=1)
time_listunpack = timeit.timeit(stmt='getCharListUnpack(string)', globals=globals(), number=1)
time_listextend = timeit.timeit(stmt='getCharListExtend(string)', globals=globals(), number=1)
time_listchain = timeit.timeit(stmt='getCharListChain(string)', globals=globals(), number=1)

print(f"Execution time using list constructor is {time_list} seconds")
print(f"Execution time using list comprehension is {time_listcomp} seconds")
print(f"Execution time using map is {time_listmap} seconds")
print(f"Execution time using for loop is {time_listforloop} seconds")
print(f"Execution time using unpacking is {time_listunpack} seconds")
print(f"Execution time using extend is {time_listextend} seconds")
print(f"Execution time using chain is {time_listchain} seconds")