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Arduino控制RGB三色LED灯实验、程序代码、连线图、仿真 - 创客硬件开发 - ...
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原文链接：https://blog.csdn.net/m0_58857684/article/details/125702555
Determining if a variable is within range?
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You could use
if (1..10).cover? i then thing_1
elsif (11..20).cover? i then thing_2
and according to this benchmark in Fast Ruby is faster than include?
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impr...
How to ignore SVN folders in WinMerge?
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f: \.jar$
## Ignore subversion housekeeping directories
d: \\.svn$
d: \\._svn$
Save it, then when selecting items to merge, select the filter you defined from the Select Files or Folders dialog box. Bonus points: It will save this and use it as a default for future merges.
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Find out HTTP method in PHP [duplicate]
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$_SERVER['REQUEST_METHOD']
See the docs. It will contain the request method upper-cased (i.e. 'GET', 'HEAD', 'POST', 'PUT').
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count(*) vs count(column-name) - which is more correct? [duplicate]
... difference is:
COUNT(*) will count the number of records.
COUNT(column_name) will count the number of records where column_name is not null.
Therefore COUNT(*) is what you should use. If you're using MyISAM and there is no WHERE clause, then the optimiser doesn't even have to look at the tabl...
Git: can't undo local changes (error: path … is unmerged)
... answered Jun 11 '10 at 8:09
zed_0xffzed_0xff
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How to file split at a line number [closed]
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file_name=test.log
# set first K lines:
K=1000
# line count (N):
N=$(wc -l < $file_name)
# length of the bottom file:
L=$(( $N - $K ))
# create the top of file:
head -n $K $file_name > top_$file_name
# create bottom ...
How do I set up curl to permanently use a proxy? [closed]
...ou can make a alias in your ~/.bashrc file :
alias curl="curl -x <proxy_host>:<proxy_port>"
Another solution is to use (maybe the better solution) the ~/.curlrc file (create it if it does not exist) :
proxy = <proxy_host>:<proxy_port>
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How to check for file existence [duplicate]
Is there a Ruby class/method where I could pass "a full path", home/me/a_file.txt , to identify whether it is a valid file path?
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Moving uncommitted changes to a new branch [duplicate]
...t-so-smart idea would be to create the new branch using git checkout -b new_branch and then merging the changes in the existing branch using git merge
– markroxor
Jan 11 '19 at 5:10
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