如何在python代码中使段落可读[重复]答案

【问题标题】：How to make paragraphs readable within python code [duplicate]如何在python代码中使段落可读[重复]
【发布时间】：2014-10-14 08:09:05
【问题描述】：

我经常需要向用户展示文本段落。我对向用户呈现文本的知识感到满意（通常使用\n 或文本换行以使其在用户端令人愉悦）但是有没有办法在我的实际代码中使用回车而不需要\n

a = "this is a really long line of text that i need to show to the user. this is a really long line of text that i need to show to the user. this is a really long line of text that i need to show to the user. this is a really long line of text that i need to show to the user."

b = "this is a really long line of text that i need to show to the user.\n
this is a really long line of text that i need to show to the user.\n
this is a really long line of text that i need to show to the user.\n"

所以我的目标是在我的代码中将“a”分解成美观的块，但仍然使用自动换行向用户显示文本。我知道这样做的唯一方法显示在“b”中，但这不适用于自动换行

【问题讨论】：

标签： python code-formatting

【解决方案1】：

所以您希望它在您的实际代码中可读吗？ Python 将隐式连接代码中的相邻字符串。要让它跨行工作，您可以使用行继续符 \，或者最好将其括在括号中。

a = ("This is a really long\n"
     "line of text that I\n"
     "need to show to the user.")

print(a)

【讨论】：

iirc 您不需要将其包裹在括号中或使用\，相邻的字符串跨空格连接。虽然它已经永远......编辑：不，我错了。括号赢了！
@AdamSmith 目前对我不起作用，但这可能是 IPython 的事情。不过，作为样式点，您可能应该无论如何都包含括号。
@AdamSmith 你可以通过在eval 中嵌入sn-p 来证明任何repl 中需要parens。没有括号，这是一个语法错误。

【解决方案2】：

将字符串放在括号中，然后利用 Python 自动连接相邻字符串文字。然后，您可以在代码中的文本周围放置任何空格格式。

b = ("this is a really long line of text that i need to show to the user."
     "this is a really long line of text that i need to show to the user."
     "this is a really long line of text that i need to show to the user.")

【讨论】：

【解决方案3】：

您可以使用三引号，例如

b = """this is a really long line of text that i need to show to the user.
this is a really long line of text that i need to show to the user.
this is a really long line of text that i need to show to the user."""
# no \n needed, but carriage returns happen on every newline

~~或者你可以使用自动字符串连接~~

# THIS DOESN'T WORK
b = "this is a really long line of text that i need to show to the user."
    "this is a really long line of text that i need to show to the user."
    "this is a really long line of text that i need to show to the user."
# also no \n needed, but this is one long line of text.

哎呀，Roger Fan 的出色回答中的 cmets 提醒我，如果不将其括在括号中或使用续行符 \，则无法做到这一点

b = ("this is a really long line of text that i need to show to the user."
     "this is a really long line of text that i need to show to the user."
     "this is a really long line of text that i need to show to the user.")
# OR
b = "this is a really long line of text that i need to show to the user."\
    "this is a really long line of text that i need to show to the user."\
    "this is a really long line of text that i need to show to the user."

【讨论】：

【解决方案4】：

您可以使用带三引号的“heredoc”：

b = 
'''
this is a really long line of text that i need to show to the user.
this is a really long line of text that i need to show to the user.
this is a really long line of text that i need to show to the user.
'''

【讨论】：

我想你会发现这是一个语法错误...
@NedBatchelder 请通过提供正确的语法帮助改进我的答案。