有用的形式注释的存储库

#1 楼

#2 楼

Please specify the RDBMS that you are targeting by adding the
appropriate tag (Oracle, SQL Server, MySQL, etc.). There may be answers
that take advantage of language or product features that are not
universally supported. Also, by tagging it with a specific RDBMS, your
question may receive attention from people better suited to answer it.

Please provide some sample data and your desired output. (See [How to
format SQL tables in a Stack Overflow
post?](https://meta.stackexchange.com/q/96125) for how to add some.) Additional schema
information and where your attempts failed would also help us to help you better.

There is **no more support** for `mysql_*` functions, they are 
[**officially deprecated**](https://wiki.php.net/rfc/mysql_deprecation), **no longer maintained** 
and were [**removed in PHP 7**](http://php.net/manual/en/function.mysql-connect.php#warning). You should update your code with [PDO](http://php.net/pdo) or 
[MySQLi](http://php.net/mysqli) to ensure the functionality of your project in the future.

#3 楼

It's difficult to tell what is being asked here, and this question cannot be
reasonably answered in its current form. Please provide the context, and/or post
code samples of what you have done 
(i.e.: [What have you tried?](http://whathaveyoutried.com))

Welcome to Stack Overflow! Please read
[what this site is about](https://stackoverflow.com/about) and 
"[How to ask](https://stackoverflow.com/questions/how-to-ask)" 
before asking a question.

#4 楼

This question is [off topic here](https://meta.stackoverflow.com/faq), but
might be suitable for the [main site](https://stackoverflow.com/). Before
re-posting there, please first [search](https://stackoverflow.com/search) 
to see if it has been asked before. Be sure to read [How to ask]
(https://stackoverflow.com/questions/how-to-ask) first!

Please note that [downvotes on Meta may appear to be different]
(https://meta.stackoverflow.com/faq#vote-differences). Here, downvotes 
may indicate disagreement in addition to any criticism of the post itself. 
Verbose criticisms will be expanded upon in answers and comments. 
Hope that clears things up! 

#5 楼

Please consider [registering](/users/login) your account, which will
[give you access](https://meta.stackexchange.com/questions/44557/why-should-i-register-my-account)
to more of the site's features.

I suggest that you [edit your profile](/users/edit/current) and give yourself a
name!

We're a little different from other sites; this isn't a discussion forum but a
Q&A site, where we reserve the answer space for answers. Please check out our
short [tour]. Could you please [edit] this to more directly address the 
question?

I hope you'll look around and find other Q&A of interest, perhaps starting with
our ### other [tag:SELECTATAG] questions.

#6 楼

Please include a [Minimal, Complete, and Verifiable example (MCVE)](https://stackoverflow.com/help/mcve) that demonstrates your problem in your post and **don't just 
include a link to jsFiddle**. Links rot, and your post should stand alone from any other resource; 
 this question will lose any value to future visitors if jsFiddle is blocked or goes away in the future!

The above snippet uses code from the [ECMAScript 5 specification](http://es5.github.com/), 
which is [not supported in older browsers](http://kangax.github.com/es5-compat-table/).
If you wish to support them, you need to either alter the snippet yourself or 
make use of an [ES5 shim](https://stackoverflow.com/questions/8732846/how-to-provide-es5-shim)
or [polyfiller](https://stackoverflow.com/questions/8221757/polyfill-or-workarounds-for-ecmascript5-new-features).

W3Schools often contains out of date and incorrect information.
For JavaScript, please reference the 
[Mozilla Developer Network (or MDN)](https://developer.mozilla.org/) 
- it is far more likely to remain accurate and updated over time. 

#7 楼

Sorry, [so] is not Facebook's customer support.  
We deal with **questions regarding programming** on the Facebook platform. 
For regular Facebook support, please see 
[Facebook's Help Center](https://www.facebook.com/help).

Sorry, [so] is not the place to report bugs on Facebook. 
Stack Overflow is a **Q&A site for professional programmers**. To 
report bugs on Facebook please visit the [Facebook Bug System]
(https://developers.facebook.com/bugs/).

Sorry, [so] is not Facebook's customer support.  
Stack Overflow is a **programmers Q&A site**.  
If you would like to suggest a new feature to Facebook, you can do so at 
their [Suggestion & Feedback Center](https://www.facebook.com/help/suggestions/).

#8 楼

Weird behavior often comes from undefined behavior caused by wrong memory manipulation. If you're experiencing **access violation** (segmentation fault), please try tools like [Valgrind](http://valgrind.org) or [AddressSanitizer](https://clang.llvm.org/docs/AddressSanitizer.html) to determine the root of the problem.

#9 楼

If you want to notify the user, please [@tag](https://meta.stackexchange.com/q/43019/307988) their name in the comment.

#10 楼

Don't forget to downvote this answer if you find it **unhelpful** or **outdated**.