fontName = b"\xC8\xC1\x10" \
# Representación del tipo de fuente en bytes.
+ fontNamesInBytes[fontName] \
# Tipo de atributo: attr_ubyte | Atributo: FontName (Nº 168)
+ "\xF8\xA8"
python3 test.py
File "test.py", line 14
+ fo
我是python的新手,需要打印C程序中使用的多行注释。我有一个test.c文件,如下所示:
/* print multiline
comments */
我尝试了以下python代码来解析C代码并打印多行注释
import re
fileopen = open('test.c', 'rw')
for var in fileopen:
if var.startswith("/*"):
var1 = re.sub(r'\n', " ", var)
var1 = v
以下脚本块:
from sh import git
git.diff('HEAD')
如果我打断一下,我会得到以下的回溯:
^CTraceback (most recent call last):
File "main.py", line 2, in <module>
git.diff('HEAD')
File "/usr/local/lib/python2.7/dist-packages/sh.py", line 726, in __call__
return RunningCommand(
在python、ruby、javascript等语言中,单行注释和多行注释有单独的语法。我看不出这种复杂性的好处。为什么,从语言设计的角度来看,两者之间有区别呢?以javascript为例,下面是实现:
// I'm a single-line comment!
/*
I'm a
multi-line
comment
*/
为什么不简单地(比如):
/* Just a comment */
/*
Doesn't matter
how many
lines
/*
我希望有一个多行if语句,如:
if CONDITION1 or\
CONDITION2 or\
CONDITION3:
我想评论每一行源代码的结尾。
if CONDITION1 or\ #condition1 is really cool
CONDITION2 or\ #be careful of condition2!
CONDITION3: #see document A sec. B for info
我之所以不这么做,是因为python将其视为一行代码,并报告SyntaxError: unexpected character after line con
几乎每个剪辑构造都有一个可选的注释部分,可以保存一些类似字符串的文本。我想知道这是否真的可以被使用。
(defrule already-very-informative-rule-name "
Hi,
I wrote this rule late saturday evening having some beer and relaxed.
So the story starts ...
...
"
(pattern)
=>
(action)
)
是否有方法提取方法/规则列表及其注释?也许像Python中自动生成的文档一样?
所以我们知道
// This doesn't affect anything
/*
This doesn't affect anything either
*/
/*
/* /* /*
This doesn't affect anything
*/
This does because comments aren't recursive
/* /*
This doesn't affect anything
*/ */
This throws an error because the second * / is unmatched since comm
我正在尝试让我的Python代码看起来更具可读性。我读了,但我不知道怎么弄到这样的东西
x = foo(x); # compute the value of the next prime number
# that is larger than x (foo is a really bad
# choice for this function's name)
或者这个
x = x + 1 # Compensate for border
some other code # so
使用vim,我使用gw或gwap自动格式化python或R中的长注释,并在需要时在行的开头自动插入#标记。在python和R中,自动文档生成的注释从#开始,而不是#,而vim不知道如何处理这些注释。
如何教vim使用#‘是注释,以及当将行格式化为块以添加#’-符号到每一行的开头?
最起码的例子:
#' Some random text. Please
#' format me
#' nicely by
#' typing gwap anywhere in this paragraph.
应该变成这样:
#' Some random text. Plea
我正在编写一个Python解析器来学习Flex和Bison,我试图找出为什么只有第一个程序是有效的Python。
a.py
\
# This is valid Python
不会产生错误。
b.py
\
# This is not valid Python
产生以下错误:
File "b.py", line 1
\
^
IndentationError: unexpected indent
和c.py
if True:
pass
\
# This is not valid Python
产生以下错误:
File "
我更改了我的models.py,之后我无法进行python迁移,在运行这个命令时,我有一个错误。我不明白这个字符串值是什么,Incorrect string value: '\\xD0\\x90\\xD0\\xB4\\xD0\\xB4...'在回溯中写道,这个字符串在列名中,但是我的数据库中没有列名!这是我的models.py:
from django.db import models
from datetime import datetime, timedelta, date
from django.utils import timezone
from django.db.m