大约有 40,000 项符合查询结果(耗时:0.0464秒) [XML]
How can I pass an argument to a PowerShell script?
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Does the Position=0 setting turn it into a positional parameter rather than a flag?
– FilBot3
Sep 5 at 12:04
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How to test which port MySQL is running on and whether it can be connected to?
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I am trying to set it up using Ruby on Rails via the database.yml file. But I just needed the port number really.
– GeekedOut
May 3 '11 at 15:50
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How do I close a single buffer (out of many) in Vim?
...etc.
This approach is particularly useful when the 'hidden' Vim option is set, because the buffer list can quickly become quite large, covering several screens, and making it difficult to spot the particular buffer I am looking for.
To make the most of this feature, it's probably best to read the...
Ruby function to remove all white spaces?
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@slothbear, it's not a regex, it's a small set of patterns that resemble regexes. As for the documentation #delete is said to work similarly to #count. You can try it in the console as well.
– ndnenkov
Feb 5 '17 at 15:36
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How can I use a file in a command and redirect output to the same file without truncating it?
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One liner alternative - set the content of the file as variable:
VAR=`cat file_name`; echo "$VAR"|grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' > file_name
share
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If Python is interpreted, what are .pyc files?
...rpreter and a compiler (or even multiple compilers).
A language is just a set of abstract mathematical rules. An interpreter is one of several concrete implementation strategies for a language. Those two live on completely different abstraction levels. If English were a typed language, the term "in...
FFmpeg: How to split video efficiently?
...omatically 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 "$DURATION_HMS" | cut -d ':' -f 2)
D...
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
... can't believe the accepted answer is the one that says to avoid using the setXXX() methods. Sometimes you simply need them to provide a hint to the layout manager. If you are laying out a panel then you should absolutely feel free to use these methods when necessary. Saying that I think if you use ...
Object comparison in JavaScript [duplicate]
... return false;
}
// Quick checking of one object being a subset of another.
// todo: cache the structure of arguments[0] for performance
for (p in y) {
if (y.hasOwnProperty(p) !== x.hasOwnProperty(p)) {
return false;
}
else if (typeof y[p] !...
Android 4.2: back stack behaviour with nested fragments
...l answer to this question is in the Fragment Transaction's function called setPrimaryNavigationFragment.
/**
* Set a currently active fragment in this FragmentManager as the primary navigation fragment.
*
* <p>The primary navigation fragment's
* {@link Fragment#getChildFragmentManager() c...
