Question

这似乎是一个简单的问题，但我已经在网上查找了，所以我们在这里找不到任何东西......

我有一个包含此信息的文本文件：

[['AX34 GFV','Name: John Smith1, Address: x, Number: x'],['AX34 ABC','Name: John Smith2, Address: x, Number: x'],['UH23 HUH','Name: John Smith3, Address: x, Number: x'],['ER54 SDR','Name: John Smith4, Address: x, Number: x'],['FE54 VMR','Name: John Smith5, Address: x, Number: x'],['23FX SDA','Name: John Smith6, Address: x, Number: x'],['AS23 JAS','Name: John Smith7, Address: x, Number: x']]

我想要做的就是读取这些数据，并将其作为列表而不是字符串导入。目前，这就是我所拥有的......

details = open("details.txt","r")
details = details.read()
details = list(details)
print(details)

但这需要获取数据的每个字母，并将其作为列表生成...任何解决此问题的简单函数？

Answer 1

也许你想要这个：

list = []
details = open("details.txt", "r")
line = details.readline()
while(line != ''):
    list.append(line)
    line = details.readline()

print(list)
details.close()

Answer 2

我不太确定这只是一条线还是单独的线。

但请尝试.append（）

Answer 3

如果您将Python代码（如此列表）作为字符串，则可以通过eval函数运行它：

>>> eval('[1, "2"]')
[1, '2']

它将返回已评估的Python表达式。但要小心这样，文件中的代码将被执行。确保没有不安全的用户数据！

Answer 4

>>> import ast
>>> x = "[['AX34 GFV','Name: John Smith1, Address: x, Number: x'],['AX34 ABC','Name: John Smith2, Address: x, Number: x'],['UH23 HUH','Name: John Smith3, Address: x, Number: x'],['ER54 SDR','Name: John Smith4, Address: x, Number: x'],['FE54 VMR','Name: John Smith5, Address: x, Number: x'],['23FX SDA','Name: John Smith6, Address: x, Number: x'],['AS23 JAS','Name: John Smith7, Address: x, Number: x']]  "
>>> ast.literal_eval(x)
[['AX34 GFV', 'Name: John Smith1, Address: x, Number: x'], ['AX34 ABC', 'Name: John Smith2, Address: x, Number: x'], ['UH23 HUH', 'Name: John Smith3, Address: x, Number: x'], ['ER54 SDR', 'Name: John Smith4, Address: x, Number: x'], ['FE54 VMR', 'Name: John Smith5, Address: x, Number: x'], ['23FX SDA', 'Name: John Smith6, Address: x, Number: x'], ['AS23 JAS', 'Name: John Smith7, Address: x, Number: x']]

ast.literal_eval

安全地评估表达式节点或Unicode或Latin-1编码包含Python表达式的字符串。提供的字符串或节点可以只包含以下Python文字结构：字符串，数字，元组，列表，dicts，布尔值和无。

Answer 5

试试这个：

details = open("details.txt","r")
details = eval(details.read())
print(details)

将数据作为列表从文本文件导入

5 个答案: