大约有 11,000 项符合查询结果（耗时：0.0624秒） [XML]
How can I multiply and divide using only bit shifting and adding?
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I translated the Python code to C. The example given had a minor flaw. If the dividend value that took up all the 32 bits, the shift would fail. I just used 64-bit variables internally to work around the problem:
int No_divide(int nDivisor, ...
Django - how to create a file and save it to a model's FileField?
...oring to the right spot, not creating duplicate files etc).
Django 1.4.1
Python 2.7.3
#Model
class MonthEnd(models.Model):
report = models.FileField(db_index=True, upload_to='not_used')
import csv
from os.path import join
#build and store the file
def write_csv():
path = join(settings.M...
How to open every file in a folder?
I have a python script parse.py, which in the script open a file, say file1, and then do something maybe print out the total number of characters.
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LaTeX source code listing like in professional books
...kage[english]{babel}
\usepackage{minted}
\begin{document}
\begin{minted}{python}
import numpy as np
def incmatrix(genl1,genl2):
m = len(genl1)
n = len(genl2)
M = None #to become the incidence matrix
VT = np.zeros((n*m,1), int) #dummy variable
#compute the bitwise xor matrix
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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...阿里源
rpm -ivh http://mirrors.aliyun.com/centos/6/os/x86_64/Packages/python-iniparse-0.3.1-2.1.el6.noarch.rpm
rpm -ivh http://mirrors.aliyun.com/centos/6/os/x86_64/Packages/yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
rpm -ivh http://mirrors.aliyun.com/centos/6/os/x86_64/Packages/yum-3.2.29...
Generate a heatmap in MatPlotLib using a scatter data set
...his output to a PNG/PDF file instead of only displaying in an interactive IPython session? I'm trying to get this as some sort of normal axes instance, where I can add a title, axis labels, etc. and then do the normal savefig() like I would do for any other typical matplotlib plot.
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Downloading a large file using curl
...p_login($conn_id, $SERVER_USERNAME, $SERVER_PASSWORD);
$server_file="test.pdf" //FTP server file path
$local_file = "new.pdf"; //Local server file path
##----- DOWNLOAD $SERVER_FILE AND SAVE TO $LOCAL_FILE--------##
if (ftp_get($conn_id, $local_file, $server_file, FTP_BINARY)) {
echo "Succes...
Finding all possible combinations of numbers to reach a given sum
...e sums filtering out those that reach the target. Here is the algorithm in Python:
def subset_sum(numbers, target, partial=[]):
s = sum(partial)
# check if the partial sum is equals to target
if s == target:
print "sum(%s)=%s" % (partial, target)
if s >= target:
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How do you serve a file for download with AngularJS or Javascript?
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Try this
<a target="_self" href="mysite.com/uploads/ahlem.pdf" download="foo.pdf">
and visit this site it could be helpful for you :)
http://docs.angularjs.org/guide/
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Throwing the fattest people off of an overloaded airplane.
...tic worst case. I think it is the only linear time algorithm.
Here's a Python solution that illustrates this algorithm:
#!/usr/bin/env python
import math
import numpy as np
import random
OVERWEIGHT = 3000.0
in_trouble = [math.floor(x * 10) / 10
for x in np.random.standard_gamma(1...