大约有 19,000 项符合查询结果(耗时:0.0310秒) [XML]
Detect network connection type on Android
...er cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo();
}
/**
* Check if there is any connectivity
* @param context
* @return
*/
public static boolean isConnected(Context context){
Networ...
Difference between staticmethod and classmethod
... code will help: Notice the difference in the call signatures of foo, class_foo and static_foo:
class A(object):
def foo(self, x):
print "executing foo(%s, %s)" % (self, x)
@classmethod
def class_foo(cls, x):
print "executing class_foo(%s, %s)" % (cls, x)
@staticme...
How does Facebook disable the browser's integrated Developer Tools?
...ason.
Chrome wraps all console code in
with ((console && console._commandLineAPI) || {}) {
<code goes here>
}
... so the site redefines console._commandLineAPI to throw:
Object.defineProperty(console, '_commandLineAPI',
{ get : function() { throw 'Nooo!' } })
This is not qu...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...round this. I have a class here: http://divillysausages.com/blog/safenumber_and_safeint
Basically, you have an object to store your score. In the setter it multiplies the value that you pass it with a random number (+ and -), and in the getter you divide the saved value by the random multiplicator ...
How to split a string literal across multiple lines in C / Objective-C?
...ll lines in C can be split into multiple lines using \.
Plain C:
char *my_string = "Line 1 \
Line 2";
Objective-C:
NSString *my_string = @"Line1 \
Line2";
Better approach
There's a better approach that works just for strings.
Plain C:
char *my_str...
How to check a string for specific characters?
...or ('D' in phrase):
return True
else:
return False
if __name__ == '__main__':
func1_time = timeit.timeit(func1, number=100000)
func2_time = timeit.timeit(func2, number=100000)
print('Func1 Time: {0}\nFunc2 Time: {1}'.format(func1_time, func2_time))
Output:
Func1 ...
Portable way to get file size (in bytes) in shell?
...
One would guess the portable ls -ln FILE | { read _ _ _ _ size _ && echo "$size"; } needs not fork for the second step of the pipeline, as it uses just built-ins, but Bash 4.2.37 on Linux forks twice (still only one execve, though).
– Palec
...
Why is require_once so bad to use?
...ng I read about better PHP coding practices keeps saying don't use require_once because of speed.
14 Answers
...
How do I check if a string is a number (float)?
...
It's not provided 'out of the box' because if is_number(s): x = float(x) else: // fail is the same number of lines of code as the try: x = float(x) catch TypeError: # fail. This utility function is an entirely unecessary abstraction.
– ovangle
...
Dynamically replace the contents of a C# method?
...omeGameClass, bool>("isRunning");
static bool Prefix(SomeGameClass __instance, ref int ___counter)
{
isRunningRef(__instance) = true;
if (___counter > 100)
return false;
___counter = 0;
return true;
}
static void Postfix(ref int __r...
