大约有 40,000 项符合查询结果（耗时：0.0415秒） [XML]
C# Double - ToString() formatting with two decimal places but no rounding
...3.4567;
double aTruncated = Math.Truncate(a * 100) / 100;
CultureInfo ci = new CultureInfo("de-DE");
string s = string.Format(ci, "{0:0.00}%", aTruncated);
Use the constant 100 for 2 digits truncate; use a 1 followed by as many zeros as digits after the decimal point you would like. Use the cultur...
How can I join multiple SQL tables using the IDs?
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...:
package foo;
public class Benchmark
{
public static final Object a = new A();
public static final Object b = new B();
...
}
JAVA:
b instanceof A;
Bytecode:
getstatic foo/Benchmark.b:java.lang.Object
instanceof foo/A
JAVA:
A.class.isInstance(b);
Bytecode:
ldc Lfoo/A; (org.obje...
What is the best Distributed Brute Force countermeasure?
...each user that could use if in lock-down mode (and they're connecting from new IP etc), that special password being sufficiently complicated that not possible to brute-force?
– Douglas Leeder
Jan 27 '09 at 18:44
...
Differences and relationship between glActiveTexture and glBindTexture
...lent to this is as follows:
Object *g_objs[MAX_LOCATIONS] = {NULL};
void BindObject(int loc, Object *obj)
{
g_objs[loc] = obj;
}
Textures are interesting; they represent a special case of binding. Many glBind* calls have a "target" parameter. This represents different locations in the OpenG...
Check if a JavaScript string is a URL
...ng
Or this Regexp from Devshed:
function validURL(str) {
var pattern = new RegExp('^(https?:\\/\\/)?'+ // protocol
'((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // domain name
'((\\d{1,3}\\.){3}\\d{1,3}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and pa...
Check if object is a jQuery object
...as a constructor function. Constructor functions are to be called with the new prefix.
When you call $(foo), internally jQuery translates this to new jQuery(foo)1. JavaScript proceeds to initialize this inside the constructor function to point to a new instance of jQuery, setting it's properties to...
Simulating ENTER keypress in bash script
...
Heh, it didn't look quite right to me, so I had to feed it through xxd. It's by far the simplest yet efficient method of seeing exactly what commands output. Gotta love stupid Unix tricks.
– Marcin
...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
...wn can strip the CSS of a regular paragraph. I'd say use with caution, I'm new to Markdown but it has some quirks.
– 2rs2ts
Jul 4 '11 at 15:57
...
What is the proper way to display the full InnerException?
...(e => e.Message.Trim());
string flattened = String.Join(Environment.NewLine, messages); // <-- the separator here
return flattened;
}
public static IEnumerable<Exception> GetAllExceptions(this Exception exception)
{
yield return exception;
if (exception is AggregateExce...