所以在Ruby中我可以做到以下几点:
testsite_array = Array.new
y=0
File.open('topsites.txt').each do |line|
testsite_array[y] = line
y=y+1
end
如何在Python中做到这一点?
答案 0 :(得分:18)
testsite_array = []
with open('topsites.txt') as my_file:
for line in my_file:
testsite_array.append(line)
这是可能的,因为Python允许您直接迭代文件。
或者,更简单的方法,使用f.readlines()
:
with open('topsites.txt') as my_file:
testsite_array = my_file.readlines()
答案 1 :(得分:5)
只需打开文件并使用readlines()
功能:
with open('topsites.txt') as file:
array = file.readlines()
答案 2 :(得分:5)
在python中,您可以使用文件对象的readlines
方法。
with open('topsites.txt') as f:
testsite_array=f.readlines()
或只是使用list
,这与使用readlines
相同,但唯一的区别是我们可以将可选的大小参数传递给readlines
:
with open('topsites.txt') as f:
testsite_array=list(f)
file.readlines
上的帮助:
In [46]: file.readlines?
Type: method_descriptor
String Form:<method 'readlines' of 'file' objects>
Namespace: Python builtin
Docstring:
readlines([size]) -> list of strings, each a line from the file.
Call readline() repeatedly and return a list of the lines so read.
The optional size argument, if given, is an approximate bound on the
total number of bytes in the lines returned.