您可以单独写入新行，也可以在单个字符串中写入，这样更容易。

示例1

输入

line1 = "hello how are you"
line2 = "I am testing the new line escape sequence"
line3 = "this seems to work"

你可以把“\n”分开写:

file.write(line1)
file.write("\n")
file.write(line2)
file.write("\n")
file.write(line3)
file.write("\n")

输出

hello how are you
I am testing the new line escape sequence
this seems to work

示例2

输入

正如其他人在之前的回答中指出的那样，将\n放在字符串中的相关点:

line = "hello how are you\nI am testing the new line escape sequence\nthis seems to work"

file.write(line)

输出

hello how are you
I am testing the new line escape sequence
this seems to work

新的行字符是\n。它用于字符串内部。

例子:

    print('First line \n Second line') 

其中\n是换行符。

这将产生如下结果:

First line
 Second line

如果使用Python 2，则不对打印函数使用圆括号。

与平台无关的断行符:Linux、Windows和iOS

import os
keyword = 'physical'+ os.linesep + 'distancing'
print(keyword)

输出:

physical
distancing

这里有一个更易读的解决方案，即使你不在顶级缩进(例如，在函数定义中)，它也能正确工作。

import textwrap
file.write(textwrap.dedent("""
    Life's but a walking shadow, a poor player
    That struts and frets his hour upon the stage
    And then is heard no more: it is a tale
    Told by an idiot, full of sound and fury,
    Signifying nothing.
"""))

\n -简单换行符插入工作:

# Here's the test example - string with newline char:
In [36]: test_line = "Hi!!!\n testing first line.. \n testing second line.. \n and third line....."

输出:

In [37]: print(test_line)

Hi!!!
 testing first line..
 testing second line..
 and third line.....

Use:

"{}\n{}\n{}".format(
    "line1",
    "line2",
    "line3"
)

我个人更喜欢这种形式。