因此,在 Ruby 中,我可以执行以下操作:
testsite_array = Array.new
y=0
File.open('topsites.txt').each do |line|
testsite_array[y] = line
y=y+1
end
在 Python 中如何做到这一点?
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,更直接的方法,使用f.readlines()
:
with open('topsites.txt') as my_file:
testsite_array = my_file.readlines()
只需打开文件并使用该readlines()
功能:
with open('topsites.txt') as file:
array = file.readlines()
在python中,您可以使用readlines
文件对象的方法。
with open('topsites.txt') as f:
testsite_array=f.readlines()
或简单地使用list
,这与使用相同,readlines
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)
帮助file.readlines
:
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.