编码样式和else语句 [英] Coding style and else statements

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本文介绍了编码样式和else语句的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

def foo(东西):


如果东西:

返回东西+ 1

其他:

返回-1


def foo(东西):


如果东西:

返回东西+ 1

返回-1


显然两者都做同样的事情。第一个是

可能更清晰,而第二个更简洁。


评论?


-

通过 http://www.teranews.com <上的免费Usenet帐户发布/ a>

def foo(thing):

if thing:
return thing + 1
else:
return -1

def foo(thing):

if thing:
return thing + 1
return -1

Obviously both do the same thing. The first is
possibly clearer, while the second is more concise.

Comments?

--
Posted via a free Usenet account from http://www.teranews.com

推荐答案

8月28日,tobiah< st@tobiah.orgwrote:
On 8/28/06, tobiah <st@tobiah.orgwrote:

def foo(东西):


如果东西:

返回东西+ 1

:否则:

返回-1


def foo(东西):


if thing:

返回物品+ 1

返回-1


显然两者都做同样的事情。第一个是

可能更清晰,而第二个更简洁。


评论?
def foo(thing):

if thing:
return thing + 1
else:
return -1

def foo(thing):

if thing:
return thing + 1
return -1

Obviously both do the same thing. The first is
possibly clearer, while the second is more concise.

Comments?



如果没有其他人会检查为什么把它放在那里?

if there is nothing the else will check why put it there?


>

-

通过
http://www.teranews.com


-
http://mail.python.org/mailman/listinfo/python-清单


tobiahaécrit:
tobiah a écrit :

def foo(thing):


如果东西:

返回东西+ 1

否则:

返回-1


def foo(东西):


如果东西:

返回东西+ 1

返回-1


显然两者都做同样的事情。第一个是

可能更清晰,而第二个更简洁。


评论?
def foo(thing):

if thing:
return thing + 1
else:
return -1

def foo(thing):

if thing:
return thing + 1
return -1

Obviously both do the same thing. The first is
possibly clearer, while the second is more concise.

Comments?



怎么样:


def foo(东西):

if thing:

result =东西+ 1

否则:

结果= -1

返回结果


和:


foo = lambda thing:thing and thing + 1或-1

What about:

def foo(thing):
if thing:
result = thing + 1
else:
result = -1
return result

and:

foo = lambda thing: thing and thing + 1 or -1


Bruno Desthuilliers写道:
Bruno Desthuilliers wrote:

foo = lambda事物:事物和事物+ 1或-1
foo = lambda thing: thing and thing + 1 or -1



和...或技巧是错误的(如果东西== -1?)和糟糕的风格。如果

你想要一个条件表达式,2.5提供一个:


的东西+ 1如果还有其他东西-1


没有微妙的逻辑错误,而且更明显更好。


关于原始帖子的主题,我个人更喜欢后者

(没有其他条款),因为太深的压痕水平不是很好

Thing。但是,如果一个多余的其他:会使代码更清晰

不知何故,一定要使用一个,因为这更像是个人品味而不是任何东西。

The and ... or trick is buggy (what if thing == -1?) and bad style. If
you -do- want a conditional expression, 2.5 provides one:

thing + 1 if thing else -1

No subtle logical bugs, and a good deal more obvious.

On the topic of the original posting, I personally prefer the latter
(no else clause), because too deep a level of indentation is not a Good
Thing. However, if a redundant else: would make the code clearer
somehow, by all means use one, because this is more a matter of
personal taste than anything.


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