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MFC CString::Format()函数详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...%字符开始的格式指令，我们通过这些格式指令来编译器如何对Args里面的值进行格式！以下是不同类型数据的格式方式%号后的说明: （后面会举例说明各格式命令）
d输出带符号十进制数
o输出无符号八进制数
x输出无符号十六...
Make .git directory web inaccessible
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Put this in an .htaccess file at the root of your web server:
RedirectMatch 404 /\.git
This solution is robust and secure: it
works for all .git directories in your site, even if there are more than one,
also hides other Git files like .gitignore and .gitmo...
MIN/MAX vs ORDER BY and LIMIT
...OM `tbl`;
Simply because it is ANSI compatible. Limit 1 is particular to MySql as TOP is to SQL Server.
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Multiple columns index when using the declarative ORM extension of sqlalchemy
...f you have a dictionary for table_args like I currently do? table_args = {'mysql_engine':'InnoDB'}
– Nick Holden
Sep 1 '11 at 8:39
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程序员保值的4个秘密 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...易理解的，它是说我们要从用户的角度来思考这个产品该如何设计，因为产品好不好用最终由用户说了算。如果你在实现产品时也能站在用户的角度来思考，斤斤计较一个功能是否符合应用场景、是否与用户的行为特点吻合、是...
How can I view all the git repositories on my machine?
...want ALL repositories on a drive, you should run the command once from the root of each drive.
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Dynamically Changing log4j log level
...ns of the configuration will pose a more in depth approach.
LogManager.getRootLogger().setLevel(Level.DEBUG);
The changes are permanent through the life cyle of the Logger. On reinitialization the configuration will be read and used as setting the level at runtime does not persist the level chang...
Git alias with positional parameters
...ou use stronger magic like this.
UPD
Because commands are executed at the root of repository you may use ${GIT_PREFIX} variable when referring to the file names in commands
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iPhone hide Navigation Bar only on first page
...ind the event/action to trigger it to hide again when they get back to the root view....
14 Answers
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Does SQLAlchemy have an equivalent of Django's get_or_create?
...ote that begin_nested automatically triggers a flush.
Note that if using MySQL, the transaction isolation level must be set to READ COMMITTED rather than REPEATABLE READ for this to work. Django's get_or_create (and here) uses the same stratagem, see also the Django documentation.
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