大约有 12,000 项符合查询结果（耗时：0.0236秒） [XML]
How can I multiply and divide using only bit shifting and adding?
...
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...
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
...
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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新浪微博 阿里巴巴囊中物？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...公司18%的股份，成为新浪的第二大股东。目前，阿里持有从新浪剥离出来的微博公司32%股权。
在分析人士看来，从对优酷土豆的资本运作来看，阿里采取了先入股后全资收购的做法，从这点来看，它也同样可能对新浪微博采取...
Mysql substr和Oracle substr区别 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
Mysql substr和Oracle substr区别Oracle substr(字符串，开始索引、从0起，长度)Mysql substr或substring(字符串，开始索引、从1起，长度)Oracle substr(字符串，开始索引、从0起，长度)
Mysql substr或substring(字符串，开始索引、从1起，长度)Mysql Orac...
mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
...r and slaveOk=false”, “code” : 13435出现这个错误的原因是在从库上执行命令导致，默认情况下只有主库可以执行命令。当然可以通过设置使得从库也能执行命令，具体参见：http: s 出现这个错误的原因是在从库上执行命令导致，...
浅谈服务器单I/O线程＋工作者线程池模型架构及实现要点 - 更多技术 - 清泛...
...epoll并等待，有I/O请求（socket）到达时，将其加入epoll并从线程池中取一个空闲工作者线程，将实际的任务交由工作者线程处理。
伪码：
创建一个epoll实例;
while(server running)
{
epoll等待事件;
if(新连接到达且是有效连接...
Generate a heatmap in MatPlotLib using a scatter data set
...his output to a PNG/PDF file instead of only displaying in an interactive IPython session? I'm trying to get this as some sort of normal axes instance, where I can add a title, axis labels, etc. and then do the normal savefig() like I would do for any other typical matplotlib plot.
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Downloading a large file using curl
...p_login($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...