大约有 12,000 项符合查询结果（耗时：0.0550秒） [XML]
How to declare global variables in Android?
...
Create this subclass
public class MyApp extends Application {
String foo;
}
In the AndroidManifest.xml add android:name
Example
<application android:name=".MyApp"
android:icon="@drawable/icon"
android:label="@string/app_name">
...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
....
// ...
}
In case you want to support path parameters like /servlet/foo/bar, then use an URL pattern of /servlet/* instead. See also Servlet and path parameters like /xyz/{value}/test, how to map in web.xml?
@WebServlet works only on Servlet 3.0 or newer
In order to use @WebServlet, you onl...
When to use std::forward to forward arguments?
...by value
An example for the first case:
template<typename T>
void foo(T&& prop) {
other.set(prop); // use prop, but don't modify it because we still need it
bar(std::forward<T>(prop)); // final use -> std::forward
}
In the code above, we don't want prop to have so...
Is “inline” without “static” or “extern” ever useful in C99?
...swered Jun 10 '11 at 22:57
Fred FooFred Foo
317k6464 gold badges663663 silver badges785785 bronze badges
...
How do function pointers in C work?
...\xc3 <- This swaps the values of a and b";
Compiling with gcc -c -m32 foo.c and disassembling with objdump -D -rwC -Mintel, we can get the assembly, and find out that this code violates the ABI by clobbering EBX (a call-preserved register) and is generally inefficient.
00000000 <swap>:
...
Best Practices: Salting & peppering passwords?
...t harder than people realize, and it's quite easy to shoot yourself in the foot. For 99.9% of the users out there, raw bcrypt is more than sufficient for all but the simplest passwords...
– ircmaxell
Jun 4 '13 at 14:56
...
Is null reference possible?
... you have another file user.cpp with the code
#include "converter.h"
void foo() {
int& nullRef = toReference(nullptr);
cout << nullRef; //crash happens here
}
the compiler does not know that toReference() will dereference the passed pointer, and assume that it returns a valid ...
Why not use tables for layout in HTML? [closed]
...t;h1>Some Text</h1> and then in their css: h1 { background-image('foo.jpg'); text-indent:-3000px }? This is the correct way of doing it because you're retaining maximum semantic information in the style-less html. Or maybe I misunderstood you.
– Karan
...
How to export revision history from mercurial or git to cvs?
...ort depends on cvs Initialized empty Git repository in /Users/gus/projects/foo/foobar/.git/ Can't exec "cvsps": No such file or directory at /Applications/Xcode.app/Contents/Developer/usr/libexec/git-core/git-cvsimport line 777. Could not start cvsps: No such file or directory git cvsimport: fatal: ...
What is polymorphism, what is it for, and how is it used?
...
Polyp is short for polypo(u)s. And pous is foot in greek. ;-)
– Dirk
Oct 12 '16 at 14:21
2
...