大约有 30,000 项符合查询结果（耗时：0.0380秒） [XML]
How to go about formatting 1200 to 1.2k in java
....util.regex.Pattern;
/**
* Converts a number to a string in <a href="http://en.wikipedia.org/wiki/Metric_prefix">metric prefix</a> format.
* For example, 7800000 will be formatted as '7.8M'. Numbers under 1000 will be unchanged. Refer to the tests for further examples.
*/
class Roun...
Dump a mysql database to a plaintext (CSV) backup from the command line
...'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
From http://www.tech-recipes.com/rx/1475/save-mysql-query-results-into-a-text-or-csv-file/
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Where do “pure virtual function call” crashes come from?
...r that can provide a stack trace of where the purecall happened; see here: http://www.lenholgate.com/blog/2006/01/purecall.html for more details.
(Note you can also call _set_purecall_handler() to install your handler in some versions of MSVC).
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
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Skip certain tables with mysqldump
...mant.
More information of how to use the exclude option you can read here: https://dev.mysql.com/doc/refman/5.7/en/mysqlpump.html#mysqlpump-filtering
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What are the effects of exceptions on performance in Java?
..., is just too long to post here. So let me summarize here and refer you to http://www.fuwjax.com/how-slow-are-java-exceptions/ for the gritty details.
The real question here is not "How slow are 'failures reported as exceptions' compared to 'code that never fails'?" as the accepted response might h...
Get keys from HashMap in Java
...
Check this.
https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html
(Use java.util.Objects.equals because HashMap can contain null)
Using JDK8+
/**
* Find any key matching a value.
*
* @param value The value to be matched...
C++ equivalent of java's instanceof
...{
return dynamic_cast<const Base*>(ptr) != nullptr;
}
Example: http://cpp.sh/6qir
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Remove duplicated rows using dplyr
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How do I configure emacs for editing HTML files that contain Javascript?
...
Another solution is multi-web-mode:
https://github.com/fgallina/multi-web-mode
which may be more easily configurable than the already mentioned multi-mode.
You just configure your preferred modes in your .emacs file like this:
(require 'multi-web-mode)
(setq...