大约有 40,000 项符合查询结果（耗时：0.0563秒） [XML]
How does a hash table work?
...ller and easier to search, but still you don't want to search sequentially from one end of the library (or list) to the other.
You want something that, with the title of the book, can give you the right spot at once, so all you have to do is just stroll over to the right shelf, and pick up the book...
What is the difference between NULL, '\0' and 0?
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@Nasko: From the C standard (draft,n1124): 'An integer character constant has type int', thus '\0' is actually of type int in C, and thus sizeof('\0') is 4 in my architecture (linux,32bit)
– David Rodríguez - d...
Setting different color for each series in scatter plot on matplotlib
...hem, this sometimes is easier to perform.
import matplotlib.pyplot as plt
from random import randint
import numpy as np
#Let's generate some random X, Y data X = [ [frst group],[second group] ...]
X = [ [randint(0,50) for i in range(0,5)] for i in range(0,24)]
Y = [ [randint(0,50) for i in range(0...
How to get the name of the current method from code [duplicate]
...l(MethodImplOptions.NoInlining) to GetCurrentMethod only stops that method from being inlined into its caller. It doesn't prevent the calling method itself from being inlined into its own caller etc, etc.
– LukeH
Apr 16 '10 at 12:23
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django-debug-toolbar not showing up
.... In *nix, you can do that simply with find . -name "*.pyc" -exec rm {} \; from the project root. Finally, run python manage.py shell and execute from django.conf import settings and check the value of settings.INSTALLED_APPs.
– Chris Pratt
May 9 '12 at 14:42
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How to check if a Unix .tar.gz file is a valid file without uncompressing?
...e files integrity
http://linux.about.com/od/commands/l/blcmdl1_gzip.htm
from: http://unix.ittoolbox.com/groups/technical-functional/shellscript-l/how-to-test-file-integrity-of-targz-1138880
To test the gzip file is not corrupt:
gunzip -t file.tar.gz
To test the tar file inside is not corrupt:...
Count number of lines in a git repository
...stat 4b825dc642cb6eb9a060e54bf8d69288fbee4904
This shows the differences from the empty tree to your current working tree. Which happens to count all lines in your current working tree.
To get the numbers in your current working tree, do this:
git diff --shortstat `git hash-object -t tree /dev/...
How to split a string and assign it to variables
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@PumpkinSeed just tried it out, and I get this back from err, unfortunately: too many colons in address 2001:0db8:85a3:0000:0000:8a2e:0370:7334 :(
– J.M. Janzen
Feb 25 '17 at 16:11
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How do you convert a time.struct_time object into a datetime object?
... time tuple (in localtime) into seconds since the Epoch, then use datetime.fromtimestamp() to get the datetime object.
from datetime import datetime
from time import mktime
dt = datetime.fromtimestamp(mktime(struct))
shar...
Single TextView with multiple colored text
...the String with html's font-color property then pass it to the method Html.fromHtml(your text here)
String text = "<font color=#cc0029>First Color</font> <font color=#ffcc00>Second Color</font>";
yourtextview.setText(Html.fromHtml(text));
...