大约有 5,000 项符合查询结果（耗时：0.0247秒） [XML]
What's invokedynamic and how do I use it?
...d to be dumb data holders.
Considering this simple record:
public record Range(int min, int max) {}
The bytecode for this example would be something like:
Compiled from "Range.java"
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:...
What characters are forbidden in Windows and Linux directory names?
...klist of characters, you could use a whitelist. All things considered, the range of characters that make sense in a file or directory name context is quite short, and unless you have some very specific naming requirements your users will not hold it against your application if they cannot use the wh...
Getting individual colors from a color map in matplotlib
...0.99923106502084169, 0.74602077638401709, 1.0)
For values outside of the range [0.0, 1.0] it will return the under and over colour (respectively). This, by default, is the minimum and maximum colour within the range (so 0.0 and 1.0). This default can be changed with cmap.set_under() and cmap.set_o...
What's the hardest or most misunderstood aspect of LINQ? [closed]
...g to do a join without the join operator will result in O(n^x): from i1 in range1 from i2 in range2 from i3 in range3 from i4 in range4 where i1 == i2 && i3 == i4 select new { i1, i2, i3, i4}. And I've actually seen this written before. It works, but very slowly.
– Mark...
Pick a random element from an array
...nt expect: Int, Double, Float, UInt32, etc. And it lets you provide target ranges for the values. Very handy. You can use array[Int.random(0..<array.count)]` in Swift 4.2
– Duncan C
Sep 19 '18 at 18:30
...
Plot two graphs in same plot in R
...add another graph of x2 and y2 in the same graph. Both x1 and x2 have same range but different values.
– Kavipriya
Oct 21 '15 at 4:35
1
...
Text Progress Bar in the Console [closed]
...
print()
Sample Usage
import time
# A List of Items
items = list(range(0, 57))
l = len(items)
# Initial call to print 0% progress
printProgressBar(0, l, prefix = 'Progress:', suffix = 'Complete', length = 50)
for i, item in enumerate(items):
# Do stuff...
time.sleep(0.1)
# Upd...
Date ticks and rotation in matplotlib
...t
now = dt.datetime.now()
hours = [now + dt.timedelta(minutes=x) for x in range(0,24*60,10)]
days = [now + dt.timedelta(days=x) for x in np.arange(0,30,1/4.)]
hours_value = np.random.random(len(hours))
days_value = np.random.random(len(days))
fig, axs = plt.subplots(2)
fig.subplots_adjust(hspace=0...
How are zlib, gzip and zip related? What do they have in common and how are they different?
...s of wrapping around the deflate streams. Those are: no wrapping at all ("raw" deflate), zlib wrapping, which is used in the PNG format data blocks, and gzip wrapping, to provide gzip routines for the programmer. The main difference between zlib and gzip wrapping is that the zlib wrapping is more ...
Python time measure function
...Timer
@Timer(average=False)
def matmul(a,b, times=100):
for i in range(times):
np.dot(a,b)
Output:
matmul:0.368434
matmul:2.839355
It can also work like a plug-in timer with namespace control(helpful if you are inserting it to a function which has a lot of codes and ma...