大约有 3,800 项符合查询结果（耗时：0.0131秒） [XML]
Set Focus on EditText
... necessary or i can just show it immediately?
– Coder123
Mar 6 '19 at 8:15
add a comment
|
...
MySQL connection not working: 2002 No such file or directory
...
Hmm. Maybe they meant Leopard or Tiger. In any case, have fun with WordPress!
– Alec Gorge
Nov 4 '09 at 21:47
3
...
How to randomly select an item from a list?
...y selects a single item
For reproducibility, you can do:
np.random.seed(123)
np.random.choice(foo) # first call will always return 'c'
For samples of one or more items, returned as an array, pass the size argument:
np.random.choice(foo, 5) # sample with replacement (default)
np.random...
How do I format a number in Java?
...
From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...
Remap values in pandas column with a dict
...n-matched entries are changed to NaNs
Although map most commonly takes a function as its argument, it can alternatively take a dictionary or series: Documentation for Pandas.series.map
Non-Exhaustive Mapping
If you have a non-exhaustive mapping and wish to retain the existing variables for non-...
How do I read text from the (windows) clipboard from python?
...)
win32clipboard.EmptyClipboard()
win32clipboard.SetClipboardText('testing 123')
win32clipboard.CloseClipboard()
# get clipboard data
win32clipboard.OpenClipboard()
data = win32clipboard.GetClipboardData()
win32clipboard.CloseClipboard()
print data
An important reminder from the documentation:
...
display: inline-block extra margin [duplicate]
...
123
White space affects inline elements.
This should not come as a surprise. We see it every day ...
Semaphore vs. Monitors - what's the difference?
...tor is an object designed to be accessed from multiple threads. The member functions or methods of a monitor object will enforce mutual exclusion, so only one thread may be performing any action on the object at a given time. If one thread is currently executing a member function of the object then ...
How to reverse a singly linked list using only two pointers?
...
Any alternative? No, this is as simple as it gets, and there's no fundamentally-different way of doing it. This algorithm is already O(n) time, and you can't get any faster than that, as you must modify every node.
It looks like your code is on the right track, but it's not quite working ...
Converting Secret Key into a String and Vice Versa
...
To show how much fun it is to create some functions that are fail fast I've written the following 3 functions.
One creates an AES key, one encodes it and one decodes it back. These three methods can be used with Java 8 (without dependence of...