大约有 30,000 项符合查询结果（耗时：0.0466秒） [XML]
Why does String.split need pipe delimiter to be escaped?
...xpects a regular expression argument. An unescaped | is parsed as a regex meaning "empty string or empty string," which isn't what you mean.
share
|
improve this answer
|
fo...
What is the purpose of Android's tag in XML layouts?
...d.
The plot thickens
As an include file is a classic layout xml file, it means that it must have one top element.
So in case your file needs to include more than one widget, you would have to use a layout.
Let's say that include1.xml has now two TextView: a layout has to be declared. Let's choose...
How to update a menu item shown in the ActionBar?
... By doing that, you can have synchronization issues right? I mean. you dont know EXACTLY when onCreateOptionMenu is going to run, so you may reach your piece of code with the mnuTopMenuActionBar_ uninitialized, right? How would you work around that?
– acrespo
...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
...
What is "mathematically purer" supposed to mean?
– Tara
Jul 30 '15 at 1:06
1
...
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
...
@AldiUnanto What about Eloquent? Active record meant to be used on one table therefore you don't need aliases. When you use relations you're still dealing with one table at a time (i.e. when you define filters on the relationship). Now if you're using Query Builder with a...
MySQL foreign key constraints, cascade delete
...
Hello @Hammerite, can you please tell me what is the meaning of KEY pkey (product_id), in the third CREATE TABLE query in accepted answer?
– Siraj Alam
Jun 3 '18 at 7:51
...
Error Code: 1005. Can't create table '…' (errno: 150)
...) ENGINE = InnoDB DEFAULT CHARACTER SET = utf8;
... on the SQL statement means that there is some missing code.
share
|
improve this answer
|
follow
|
...
CSS @font-face - what does “src: local('☺')” mean?
...t).
Explained: The last src property takes precedence in the CSS cascade, meaning that the CSS will be parsed from bottom to top. The local(☺︎) will make IE skip the src at the bottom, without wasting bandwidth downloading fonts it can't use, and rather go straight to the font in .eot format (d...
Ant: How to execute a command for each file in directory?
...m: failed to create task or type foreach". If I understand correctly, this means, foreach is an unknown keyword.
– ivan_ivanovich_ivanoff
Sep 23 '09 at 19:48
4
...
There can be only one auto column
...
Note also that "key" does not necessarily mean primary key. Something like this will work:
CREATE TABLE book (
isbn BIGINT NOT NULL PRIMARY KEY,
id INT NOT NULL AUTO_INCREMENT,
accepted_terms BIT(1) NOT NULL,
accepted_...