大约有 47,000 项符合查询结果(耗时:0.0635秒) [XML]
@try - catch block in Objective-C
...
137
All work perfectly :)
NSString *test = @"test";
unichar a;
int index = 5;
@try {
...
What are the correct link options to use std::thread in GCC under linux?
...
101
I think on Linux pthread is used to implement std::thread so you need to specify the -pthread ...
In Postgresql, force unique on combination of two columns
...
CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NULL,
unique (col1, col2)
)
autoincrement is not postgresql. You want a serial.
If col1 and col2 make a unique and can't be null then they make a good primary key:
CREATE TABLE someTab...
Correct way to use _viewstart.cshtml and partial Razor views?
...
1 Answer
1
Active
...
How do I ALTER a PostgreSQL table and make a column unique?
...
|
edited May 23 '17 at 12:02
Community♦
111 silver badge
answered Jan 22 '09 at 15:22
...
How can I get the current language in Django?
...
139
Functions of particular interest are django.utils.translation.get_language() which returns the...
Symfony 2 EntityManager injection in service
...
112
Your class's constructor method should be called __construct(), not __constructor():
public f...
Can bash show a function's definition?
...just the body of the function (i.e. the code) use sed:
type foobar | sed '1,3d;$d'
share
|
improve this answer
|
follow
|
...
How do I list all loaded assemblies?
...
|
edited May 23 '17 at 12:26
Community♦
111 silver badge
answered Jan 19 '09 at 17:17
...
Simple logical operators in Bash
...o test if a file exists. There are also string equality operators: "$string1" == "$string2" (beware that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests if $foo is exactly a*), and the familiar !, && and || operators for nega...
