大约有 48,000 项符合查询结果(耗时:0.0470秒) [XML]
Should __init__() call the parent class's __init__()?
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In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling th...
MySQL get the date n days ago as a timestamp
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it appears (v1) DATE_SUB will return a DATETIME or STRING depending on inputs. TIMESTAMP (v2) is forcing it to a TIMESTAMP type. dev.mysql.com/doc/refman/5.1/en/…
– jsh
Apr 2 '14 at 18:39
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Is there any haskell function to concatenate list with separator?
..."?"]
"is there such a function ?"
unlines works similarly, only that the strings are imploded using the newline character and that a newline character is also added to the end. (This makes it useful for serializing text files, which must per POSIX standard end with a trailing newline)
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What's the best way to check if a file exists in C?
...e file exists. Stat() can have a large overheard if you don't need all the extra info.
– Martin Beckett
Oct 23 '08 at 15:16
4
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How do I grab an INI value within a shell script?
...\{} ) # convert text2function (2)
ini=( ${ini[*]/%\} \)/\}} ) # remove extra parenthesis
ini[0]="" # remove first element
ini[${#ini[*]} + 1]='}' # add the last brace
eval "$(echo "${ini[*]}")" # eval the result
}
cfg_writer ()
{
IFS=' '$'\n'
fun="$(declare -F)"
fun="...
Truncate (not round) decimal places in SQL Server
I'm trying to determine the best way to truncate or drop extra decimal places in SQL without rounding. For example:
18 Ans...
Write to UTF-8 file in Python
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I believe the problem is that codecs.BOM_UTF8 is a byte string, not a Unicode string. I suspect the file handler is trying to guess what you really mean based on "I'm meant to be writing Unicode as UTF-8-encoded text, but you've given me a byte string!"
Try writing the Unicode st...
How to loop through a HashMap in JSP?
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Just the same way as you would do in normal Java code.
for (Map.Entry<String, String> entry : countries.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// ...
}
However, scriptlets (raw Java code in JSP files, those <% %> things) are considered...
Type hinting a collection of a specified type
...thon 3 type annotations to specify types within collections (ex: a list of strings).
The use of formatted docstrings such as reStructuredText or Sphinx are viable alternatives and supported by various IDEs.
It also appears that Guido is mulling over the idea of extending type annotations in the sp...
In CMake, how can I test if the compiler is Clang?
... avoid any misspelling problem, I am using Case-insensitive compare, like:
string( TOLOWER "${CMAKE_CXX_COMPILER_ID}" COMPILER_ID )
if (COMPILER_ID STREQUAL "clang")
set(IS_CLANG_BUILD true)
else ()
set(IS_CLANG_BUILD false)
endif ()
For making the regex of MATCHES case-insensitive, I tried...
