用Python将文件读入多维数组
如果我有这样一个文本文件:用Python将文件读入多维数组,python,multidimensional-array,Python,Multidimensional Array,如果我有这样一个文本文件: Hello World How are you? Bye World [["Hello", "World"], ["How", "are", "you?"], ["Bye" "World"]] 我如何将其读入如下多维数组: Hello World How are you? Bye World [["Hello", "World"], ["How", "are", "you?"], ["Bye" "World"]] 我试过: textFile = ope
Hello World
How are you?
Bye World
[["Hello", "World"],
["How", "are", "you?"],
["Bye" "World"]]
我如何将其读入如下多维数组:
Hello World
How are you?
Bye World
[["Hello", "World"],
["How", "are", "you?"],
["Bye" "World"]]
我试过:
textFile = open("textFile.txt")
lines = textFile.readlines()
for line in lines:
line = lines.split(" ")
但它只是返回:
["Hello World\n", "How are you?\n", "Bye World"]
如何将文件读入多维数组?使用列表理解和
str.split
:
with open("textFile.txt") as textFile:
lines = [line.split() for line in textFile]
演示:
>>> with open("textFile.txt") as textFile:
lines = [line.split() for line in textFile]
...
>>> lines
[['Hello', 'World'], ['How', 'are', 'you?'], ['Bye', 'World']]
:
处理文件时,最好将与
关键字一起使用
物体。这样做的好处是,文件在关闭后会正确关闭
它的套件完成了,即使在途中出现了异常。它是
也比编写等效try finally块短得多
另外,不要忘记使用
条带
删除\n
:
myArray = []
textFile = open("textFile.txt")
lines = textFile.readlines()
for line in lines:
myArray.append(line.split(" "))
您可以与unbound方法一起使用:
在Python3.x中,必须使用
list(map(str.split,…)
来获取列表,因为在Python3.x中,返回的是迭代器而不是列表。添加到接受的答案中:
with open("textFile.txt") as textFile:
lines = [line.strip().split() for line in textFile]
如果将“\n”附加到每行末尾,则会将其删除。一个好的答案是:
def read_text(path):
with open(path, 'r') as file:
line_array = file.read().splitlines()
cell_array = []
for line in line_array:
cell_array.append(line.split())
print(cell_array)
它针对可读性进行了优化
但是python语法让我们使用更少的代码:
def read_text(path):
with open(path, 'r') as file:
line_array = file.read().splitlines()
cell_array = [line.split() for line in line_array]
print(cell_array)
还有python,让我们只在一行中完成强>
def read_text(path):
print([[item for item in line.split()] for line in open(path)])
lines=map(str.split,open('testFile.txt'))
@falsetru。我想这是最快的。发布答案。@GrijeshChauhanstr.split()
不带参数会处理所有类型的空白字符。它应该是map(lambda行:line.split,open('testFile.txt'))
,当我执行str.splite
时,它会说str not object。@GrijeshChauhan,你不需要lambda
,因为str.split
是未绑定的方法'abc'.split()
类似于str.split('abc')
@GrijeshChauhan,str.splite
?是打字错误吗?或者,您是否覆盖了str
?