大约有 5,476 项符合查询结果（耗时：0.0263秒） [XML]
MySQL order by before group by
...
+100
Using an ORDER BY in a subquery is not the best solution to this problem.
The best solution to get the max(post_date) by author i...
WebView and HTML5
...) mContext).getWindow().setFeatureInt(Window.FEATURE_PROGRESS, newProgress*100);
}
@Override
public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
callback.invoke(origin, true, false);
}
}
...
Good way of getting the user's location in Android
... meters.
the Criteria.ACCURACY_HIGH criterion should give you errors below 100m, which is not as good as GPS can be, but matches your needs.
You also need to monitor the status of your location provider, and switch to another provider if it gets unavailable or disabled by the user.
The passive provi...
Understanding slice notation
...ared to indexing, Python slicing is bizarrely error-proof:
>>> p[100:200]
[]
>>> p[int(2e99):int(1e99)]
[]
This can come in handy sometimes, but it can also lead to somewhat strange behavior:
>>> p
['P', 'y', 't', 'h', 'o', 'n']
>>> p[int(2e99):int(1e99)] =...
How to prevent a dialog from closing when a button is clicked
...
Daniel Nugent
39.6k1313 gold badges100100 silver badges123123 bronze badges
answered Oct 3 '11 at 14:34
Tom BollwittTom Bollwitt
...
Cannot delete directory with Directory.Delete(path, true)
...
user247702
21.2k1212 gold badges100100 silver badges142142 bronze badges
answered Nov 30 '08 at 22:24
Jeremy EdwardsJeremy Edwards
...
What does if __name__ == “__main__”: do?
...re functionB")
def functionB():
print("Function B {}".format(math.sqrt(100)))
print("before __name__ guard")
if __name__ == '__main__':
functionA()
functionB()
print("after __name__ guard")
Special Variables
When the Python interpreter reads a source file, it first defines a few specia...
How to change the output color of echo in Linux
...='\033[1;97m' # White
# High Intensity backgrounds
On_IBlack='\033[0;100m' # Black
On_IRed='\033[0;101m' # Red
On_IGreen='\033[0;102m' # Green
On_IYellow='\033[0;103m' # Yellow
On_IBlue='\033[0;104m' # Blue
On_IPurple='\033[0;105m' # Purple
On_ICyan='\033[0;106m' # Cyan
On_IWhi...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
...tions. It may save time up front, but people have to realize that may cost 100 fold down the line trying to fix some obscure problem only a handful of people truly have enough knowledge to solve.
– kemiller2002
Oct 7 '09 at 19:17
...
How do I integrate Ajax with Django applications?
...els
class Contact(models.Model):
name = models.CharField(max_length = 100)
email = models.EmailField()
message = models.TextField()
timestamp = models.DateTimeField(auto_now_add = True)
def __str__(self):
return self.name
forms.py
Create the form for the above model....