大约有 40,000 项符合查询结果（耗时：0.0447秒） [XML]
FFmpeg: How to split video efficiently?
...is given, it will be computed\
automatically from input filename"
}
IN_FILE="$1"
OUT_FILE_FORMAT="$3"
typeset -i CHUNK_LEN
CHUNK_LEN="$2"
DURATION_HMS=$(ffmpeg -i "$IN_FILE" 2>&1 | grep Duration | cut -f 4 -d ' ')
DURATION_H=$(echo "$DURATION_HMS" | cut -d ':' -f 1)
DURATION_M=$(echo ...
python list in sql query as parameter
... cursor.execute(f'SELECT name FROM students WHERE id IN ({','.join('?' for _ in l)})', l). @bobince, you should also remark in your solution that using ? is the safe way to go in terms of avoid SQL injection. There are a lot of answers here that are vulnerable, basically any that concatenates string...
Which is faster: Stack allocation or Heap allocation
...
ctuffli
3,32944 gold badges2929 silver badges4141 bronze badges
answered Oct 2 '08 at 6:09
Torbjörn Gyllebring...
Is there a PHP function that can escape regex patterns before they are applied?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
foreach with index [duplicate]
...magic.
– Kamil Szot
Nov 5 '13 at 21:32
|
show 5 more comments
...
Pros and cons of using sbt vs maven in Scala project [closed]
...e to SBT?
– Daniel
Aug 19 '15 at 19:32
|
show 2 more comments
...
Combine multiple Collections into a single logical Collection?
...
@jn_ just wrap it in Iterables.unmodifiableIterable(iterable)
– Sean Patrick Floyd
Feb 4 '11 at 10:36
2
...
UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...原理
1、用户登录bbs，通过logging.php文件中，使用函数uc_user_login验证，如果验证成功，将调用函数uc_user_synlogin（位于uc_client下的client.php文件中）， 在这个函数中调用 uc_api_post('user', 'synlogin', array('uid'=>$uid));之后向UC_API.'/index.php'...
How to use a filter in a controller?
... |
edited May 8 '15 at 8:32
downhand
39499 silver badges2323 bronze badges
answered Jan 13 '13 at 12:19...
What's the absurd function in Data.Void useful for?
... f -> onAwait $ \x -> foldConsumer onPure onAwait (f x)
Yield x _ -> absurd x
or alternatively, that you can ignore the yield case when dealing with consumers. This is the general version of this design pattern: use polymorphic data types and Void to get rid of possibilities when yo...