大约有 47,000 项符合查询结果（耗时：0.0658秒） [XML]
Difference between \A \z and ^ $ in Ruby regular expressions
...out distinguishing between the two. You may not always be in a position to string manipulate, only to Regex, so commit the right one to memory and know the difference!
– dooleyo
Mar 25 '14 at 18:01
...
Check whether a string is not null and not empty
How can I check whether a string is not null and not empty?
31 Answers
31
...
How to negate the whole regex?
...ow do I convert CamelCase into human-readable names in Java?
Regex for all strings not containing a string?
A regex to match a substring that isn’t followed by a certain other substring.
More examples
These are attempts to come up with regex solutions to toy problems as exercises; they should b...
Getting file names without extensions
...
@Juzzz That's handy if you're working with a bare string, but if you already have a FileInfo object, there's no need to bother with Path. FileInfo already provides the "Extension" property for the purpose.
– jmbpiano
Jul 28 '15 at 14:42...
T-SQL query to show table definition?
...Source
{
public class ViewSource
{
public static void Main(string[] args)
{
if (args.Length != 6)
{
Console.Error.WriteLine("Syntax: ViewSource.exe <server>" +
" <user> <password> <database> ...
Convert a Python list with strings all to lowercase or uppercase
I have a python list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase?
...
Spring MVC: How to perform validation?
...lem/context better.
Let's have a User :
public class User {
private String name;
...
}
Method 1 : If you have Spring 3.x+ and simple validation to do, use javax.validation.constraints annotations (also known as JSR-303 annotations).
public class User {
@NotNull
private Strin...
How do I modify fields inside the new PostgreSQL JSON datatype?
..._build_object('<key>', '<value>')
Where <key> should be string, and <value> can be whatever type to_jsonb() accepts.
For setting a value deep in a JSON hierarchy, the jsonb_set() function can be used:
SELECT jsonb_set('{"a":[null,{"b":[]}]}', '{a,1,b,0}', jsonb '{"c":3}')
--...
Strip double quotes from a string in .NET
...t line would actually work but I think you need four quotation marks for a string containing a single one (in VB at least):
s = s.Replace("""", "")
for C# you'd have to escape the quotation mark using a backslash:
s = s.Replace("\"", "");
...
Android - Using Custom Font
...blic class CustomFontTextView extends TextView {
private static final String sScheme =
"http://schemas.android.com/apk/res-auto";
private static final String sAttribute = "customFont";
static enum CustomFont {
ROBOTO_THIN("fonts/Roboto-Thin.ttf"),
ROBOTO_LIG...