大约有 40,000 项符合查询结果（耗时：0.0474秒） [XML]
How can I check if a directory exists in a Bash shell script?
What command can be used to check if a directory exists or not, within a Bash shell script?
35 Answers
...
Best practices to test protected methods with PHPUnit
.... If you find this difficult, almost sure that there is a problem with the composition of the class and you need to separate it to smaller classes. Keep in mind that your class should be a black box for your test - you throw in something and you get something back, and that's all!
...
Setting up foreign keys in phpMyAdmin?
...le tables linked to one another, in particular, your delete scripts will become very short if you set the referencing options correctly.
EDIT: Make sure both of the tables have the InnoDB engine selected.
share
|
...
How to check if a Constraint exists in Sql server?
...out finding "FK_ChannelPlayerSkins_Channels". Since then many people have commented on finding other "constraints" here are some other queries for that:
--Returns one row for each CHECK, UNIQUE, PRIMARY KEY, and/or FOREIGN KEY
SELECT *
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
WHERE CONST...
How to document a method with parameter(s)?
... When I attempt processing your suggested docstring, Sphinx complains SEVERE: Unexpected section title — do you know any way to make Sphinx happier about it?
– Brandon Rhodes
Jan 21 '14 at 4:54
...
HTTP 404 Page Not Found in Web Api hosted in IIS 7.5
...tion, too? Or may be a library reference? Please, also, see: stackoverflow.com/questions/27303523/…
– Babak
Dec 6 '14 at 11:08
2
...
void in C# generics?
...ates: had it been possible to return void, all Action<X,Y,Z> would become simply Func<X,Y,Z,void>. Unfortunately, this is not possible.
share
|
improve this answer
|
...
in a “using” block is a SqlConnection closed on return or exception?
...es
Yes.
Either way, when the using block is exited (either by successful completion or by error) it is closed.
Although I think it would be better to organize like this because it's a lot easier to see what is going to happen, even for the new maintenance programmer who will support it later:
us...
Data access object (DAO) in Java
...ta_access_object
Check also the sequence diagram here:
http://www.oracle.com/technetwork/java/dataaccessobject-138824.html
Maybe a simple example can help you understand the concept:
Let's say we have an entity to represent an employee:
public class Employee {
private int id;
private S...