大约有 40,000 项符合查询结果（耗时：0.0424秒） [XML]
Updating the list view when the adapter data changes
...tView.setAdapter(adapter);
and after updating the value of a list item, call:
adapter.notifyDataSetChanged();
share
|
improve this answer
|
follow
|
...
How to make an HTTP POST web request
... it is great to have such short piece of code.
– user_v
Sep 11 '13 at 6:15
3
Tim - If you right c...
How to reset sequence in postgres and fill id column with new data?
... This might cause duplicate ids. To prevent this, you can first set all to very high values: UPDATE t SET idcolumn=1000000+ nextval('seq'); then run the above script.
– tahagh
Nov 28 '13 at 13:15
...
Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
...Pandas Index itself:
df3 = df3[~df3.index.duplicated(keep='first')]
While all the other methods work, the currently accepted answer is by far the least performant for the provided example. Furthermore, while the groupby method is only slightly less performant, I find the duplicated method to be mor...
Plot two histograms on single chart with matplotlib
...dom
import numpy
from matplotlib import pyplot
x = [random.gauss(3,1) for _ in range(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot....
How do I create a URL shortener?
...two character checksum to the url. That would prevent direct iteration of all the urls in your system. Something simple like f(checksum(id) % (62^2)) + f(id) = url_id
– koblas
Sep 4 '10 at 13:53
...
JavaScript object: access variable property by name as string [duplicate]
...racket notation.
If you NEED a function for it, here it is:
function read_prop(obj, prop) {
return obj[prop];
}
To answer some of the comments below that aren't directly related to the original question, nested objects can be referenced through multiple brackets. If you have a nested objec...
How do I get the information from a meta tag with JavaScript?
...
What you really want is 'let' to keep them locally defined ;)
– tommed
Mar 23 '15 at 21:54
26
...
What is the equivalent of 'describe table' in SQL Server?
...u want, though unfortunately you have to query the views and join them manually.
share
|
improve this answer
|
follow
|
...
How to read the database table name of a Model instance?
...
Found the answer myself: the _meta attribute of an instance has the information:
model_instance._meta.db_table
share
|
improve this answer
|
...