大约有 45,000 项符合查询结果（耗时：0.0602秒） [XML]
How does one create an InputStream from a String? [duplicate]
...tream(string.getBytes("UTF-8"));
Note the UTF-8 encoding. You should specify the character set that you want the bytes encoded into. It's common to choose UTF-8 if you don't specifically need anything else. Otherwise if you select nothing you'll get the default encoding that can vary between syste...
How do I ignore files in Subversion?
...ectory.
svn status
> 0 unversioned files # ...but now the file is ignored!
cd subdirectory # now open a subdirectory.
echo "foo" > "ignoreThis.txt" # create another file named "ignoreThis.txt".
svn status
> ? ./subdirecto...
Convert Long into Integer
...
Integer i = theLong != null ? theLong.intValue() : null;
or if you don't need to worry about null:
// auto-unboxing does not go from Long to int directly, so
Integer i = (int) (long) theLong;
And in both situations, you might run into overflows (because a Long can store a wider ran...
How to capture the browser window close event?
...
@Jonny: It's now just .on().
– SLaks
Dec 26 '17 at 18:14
|
show 7 more comment...
How to record webcam and audio using webRTC and a server-based Peer connection
....css">
<h1> MediaRecorder API example</h1>
<p>For now it is supported only in Firefox(v25+) and Chrome(v47+)</p>
<div id='gUMArea'>
<div>
Record:
<input type="radio" name="media" value="video" checked id='mediaVideo'>Video
<input...
Split files using tar, gz, zip, or bzip2 [closed]
...ermediate large file when (de)compressing. Use the tar -C option to use a different directory for the resulting files. btw if the archive consists from only a single file, tar could be avoided and only gzip used:
# create archives
$ gzip -c my_large_file | split -b 1024MiB - myfile_split.gz_
# unco...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
... but that basic process is:
get maxLocalOpOrdinal from each server.
if a majority of servers are not up (from this server’s POV), remain in Secondary mode and stop.
if the last op time seems very old, stop and await human intervention.
else, using a consensus protocol, pick the serv...
Cannot delete or update a parent row: a foreign key constraint fails
...
If you were going to do this, why not just remove all of the constraints?
– Sablefoste
Jun 7 '16 at 12:23
...
Logical operators (“and”, “or”) in DOS batch
...
You can do and with nested conditions:
if %age% geq 2 (
if %age% leq 12 (
set class=child
)
)
or:
if %age% geq 2 if %age% leq 12 set class=child
You can do or with a separate variable:
set res=F
if %hour% leq 6 set res=T
if %hour% geq 22 set ...
A better similarity ranking algorithm for variable length strings
...intersection = 0
pairs1.each do |p1|
0.upto(pairs2.size-1) do |i|
if p1 == pairs2[i]
intersection += 1
pairs2.slice!(i)
break
end
end
end
(2.0 * intersection) / union
' LANGUAGE 'plruby';
Works like a charm!
...