大约有 37,000 项符合查询结果(耗时:0.0389秒) [XML]

https://stackoverflow.com/ques... 

HTML span align center not working?

...wing style. margin:auto normally used to center align the content. display:table is needed for span element <span style="margin:auto; display:table; border:1px solid red;"> This is some text in a div element! </span> ...
https://stackoverflow.com/ques... 

What guidelines for HTML email design are there? [closed]

... and CSS' perspective. For best results, imagine it's 1999. Go back to tables for layout (or preferably - don't attempt any complex layout) Be afraid of background images (they break in Outlook 2007 and Gmail). The style-tag-in-the-body thing is because Hotmail used to accept it that way - I'm ...
https://stackoverflow.com/ques... 

Printing all global variables/local variables?

... @cpuer: Not necessarily. It only displays the name in the symbol table. For instance, with gcc on Mac a static variable y is renamed to y.1913 on compilation. – kennytm Jun 7 '11 at 7:14 ...
https://stackoverflow.com/ques... 

MYSQL OR vs IN performance

...s the same. $t = microtime(true); for($i=0; $i<10000; $i++): $q = DB::table('users')->where('id',1) ->orWhere('id',2) ->orWhere('id',3) ->orWhere('id',4) ->orWhere('id',5) ->orWhere('id',6) ->orWhere('id',7) ->orWhere('id',8) ->orWhere(...
https://stackoverflow.com/ques... 

Most popular screen sizes/resolutions on Android phones [closed]

... You can see the resolutions for those categories in the Table 2, in this section: http://developer.android.com/guide/practices/screens_support.html#testing share | improve this an...
https://stackoverflow.com/ques... 

How to execute raw SQL in Flask-SQLAlchemy app

...e their own execute method: result = db.session.execute('SELECT * FROM my_table WHERE my_column = :val', {'val': 5}) All your application queries should be going through a session object, whether they're raw SQL or not. This ensures that the queries are properly managed by a transaction, which al...
https://stackoverflow.com/ques... 

Using an ORM or plain SQL? [closed]

...ased on Java beans get/set methods. This is a TON of boilerplate for every table, for every column and ... here's the real anti-pattern: Just to expose every field as if it were public. In effect, having a get/set method on fields in an object/table/row is very close to violating every tenant of inf...
https://stackoverflow.com/ques... 

How to draw a circle with text in the middle?

...can make border-radius:50%; that makes your code event more elegant and portable, without having to change this attribute each time based on the width and height ;) – bonCodigo Aug 14 '14 at 10:37 ...
https://stackoverflow.com/ques... 

PHP & mySQL: Year 2038 Bug: What is it? How to solve it?

...b hardly a legacy platform yet. Here is a process for altering a database table column to convert TIMESTAMP to DATETIME. It starts with creating a temporary column: # rename the old TIMESTAMP field ALTER TABLE `myTable` CHANGE `myTimestamp` `temp_myTimestamp` int(11) NOT NULL; # create a new DAT...
https://stackoverflow.com/ques... 

rake db:schema:load vs. migrations

...n (very similar to your schema.rb file) and updating the schema_migrations table to reflect this change. Be very careful when doing this! You can easily delete your production data if you aren't careful. As a side note, I strongly believe that you should never put data creation in the migration fil...