大约有 43,000 项符合查询结果（耗时：0.0688秒） [XML]
Using isKindOfClass with Swift
...icker' in the subsequent 'if' block, then you would want to use: if let _ = touch.view as? UIPickerView { ... }
– Adam Freeman
Nov 7 '15 at 0:38
...
What is “rvalue reference for *this”?
.... Take the following code as a further example:
struct test2{
std::unique_ptr<int[]> heavy_resource;
test2()
: heavy_resource(new int[500]) {}
operator std::unique_ptr<int[]>() const&{
// lvalue object, deep copy
std::unique_ptr<int[]> p(new int[500]);
f...
Are there strongly-typed collections in Objective-C?
...but you can also add them to your own classes:
@interface GenericsTest<__covariant T> : NSObject
-(void)genericMethod:(T)object;
@end
@implementation GenericsTest
-(void)genericMethod:(id)object {}
@end
Objective-C will behave like it did before with compiler warnings.
GenericsTest<...
Preserve Line Breaks From TextArea When Writing To MySQL
...
Here is what I use
$textToStore = nl2br(htmlentities($inputText, ENT_QUOTES, 'UTF-8'));
$inputText is the text provided by either the form or textarea.
$textToStore is the returned text from nl2br and htmlentities, to be stored in your database.
ENT_QUOTES will convert both double and singl...
How to lazy load images in ListView in Android
...nd after sometime you can purge your hardlist :)
– AZ_
Jan 18 '11 at 8:08
38
Google Shelves proje...
What is the correct way of using C++11's range-based for?
...t class, with custom copy semantics.
class X
{
public:
X()
: m_data(0)
{}
X(int data)
: m_data(data)
{}
~X()
{}
X(const X& other)
: m_data(other.m_data)
{ cout << "X copy ctor.\n"; }
X& operator=(const X& other)
...
Manipulating an Access database from Java without ODBC
...Connection conn=DriverManager.getConnection(
"jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
System.out.println(rs.getString(1));
}
Disclosure
At the time of ...
How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved
...tp://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<!-- Config here. -->
</web-app>
See also:
JSTL core taglib documentation (for the right taglib URIs)
JSTL tag info page (for JSTL download links and web.xml examples)
...
Keeping ASP.NET Session Open / Alive
... use the method above. If the second, try something like using the Session_End event handler.
If you have Forms Authentication, then you get something in the Global.asax.cs like
FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(formsCookie.Value);
if (ticket.Expired)
{
Request.C...
Getting the location from an IP address [duplicate]
... "CA",
"country": "US",
"phone": 650
}
Here's a PHP example:
$ip = $_SERVER['REMOTE_ADDR'];
$details = json_decode(file_get_contents("http://ipinfo.io/{$ip}/json"));
echo $details->city; // -> "Mountain View"
You can also use it client-side. Here's a simple jQuery example:
$.get(...