大约有 40,000 项符合查询结果（耗时：0.0400秒） [XML]
Abstract classes in Swift Language
... init(){}
public func getFoodToEat()->String
{
if(self._iAmHungry())
{
return self._myFavoriteFood();
}else{
return "";
}
}
private func _myFavoriteFood()->String
{
return "Sandwich";
}
internal func...
jQuery trigger file input
... <img src="http://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Icon_-_upload_photo_2.svg/512px-Icon_-_upload_photo_2.svg.png" width="20px" height="20px"/>
</label>
<input type="file" value="upload" id="uploadFile" class="uploadFile" />
</div>
</body>...
How should I validate an e-mail address?
...ache.commons.validator.routines.EmailValidator)
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-...
Iterating C++ vector from the end to the beginning
...
The best way is:
for (vector<my_class>::reverse_iterator i = my_vector.rbegin();
i != my_vector.rend(); ++i ) {
}
rbegin()/rend() were especially designed for that purpose. (And yes, incrementing a reverse_interator moves it backward.)
Now...
Referencing system.management.automation.dll in Visual Studio
... However it created the *.dll only in C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Management.Automation/v4.0_3.0.0.0__31bf3856ad364e35.
– Alexander Samoylov
Apr 8 '19 at 13:41
...
Check if object is a jQuery object
...
isn't obj.__proto__.jquery instead of obj.constructor.prototype.jquery enough? just a bit short :)
– Axel
Jul 3 '17 at 9:35
...
Mathematical functions in Swift
...l math functions and constanst.
A small snippet of the file
...
func pow(_: CDouble, _: CDouble) -> CDouble
func sqrtf(_: CFloat) -> CFloat
func sqrt(_: CDouble) -> CDouble
func erff(_: CFloat) -> CFloat
...
var M_LN10: CDouble { get } /* loge(10) */
var M_PI: CDouble { get } /...
How can I tell PyCharm what type a parameter is expected to be?
...g:
def repress(self, peasant: Person) -> bool:
peasant.knock_over() # Shows a warning. And there was much rejoicing.
return peasant.badly_hurt() # Lets say, its not known from here that this method will always return a bool
Sometimes this is useful for non-public methods, t...
Calculating a directory's size using Python?
...
This walks all sub-directories; summing file sizes:
import os
def get_size(start_path = '.'):
total_size = 0
for dirpath, dirnames, filenames in os.walk(start_path):
for f in filenames:
fp = os.path.join(dirpath, f)
# skip if it is symbolic link
...
How to make rounded percentages add up to 100%
...sion using underscorejs:
function foo(l, target) {
var off = target - _.reduce(l, function(acc, x) { return acc + Math.round(x) }, 0);
return _.chain(l).
sortBy(function(x) { return Math.round(x) - x }).
map(function(x, i) { return Math.round(x) + (off > i) - (i &...