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CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...加速和服务器加速，客户端加速Cache部署在网络出口处，把常访问的内容缓存在本地，提高响应速度和节约带宽；服务器加速，Cache部署在服务器前端，作为Web服务器的前置机，提高Web服务器的性能，加速访问速度。如果多台Cache...
Shuffle two list at once with same order
... can do it as:
import random
a = ['a', 'b', 'c']
b = [1, 2, 3]
c = list(zip(a, b))
random.shuffle(c)
a, b = zip(*c)
print a
print b
[OUTPUT]
['a', 'c', 'b']
[1, 3, 2]
Of course, this was an example with simpler lists, but the adaptation will be the same for your case.
Hope it helps. Good L...
马化腾给创业者的3点建议：行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...
...，还有材料学等等领域，有很多国际人才和成果，能不能把这种模式再推广继续扩大呢？其实很有机会，但是过去没有太过关注这一点。沈南鹏也跟我说，腾讯在香港土生土长，已经上市12年。我本人在中国互联网之前，也就是1...
SHFileOperation函数总结（文件夹的移动、复制、删除） - C/C++ - 清泛网 -...
...除多个文件
CopyFile("d:\0\0","D:\\MyProjects\\临时程序\0\0"); //把"临时程序"文件夹放到d盘下面
CopyFile("d:\0\0","D:\\MyProjects\\临时程序临时程序"); //把PID.dsp和PID.dsw俩个文件放到d盘下面
ReNameFile("d:\\NewName","d:\\PID\0\0"); \\把PID文件夹从命名...
How do you extract a column from a multi-dimensional array?
...
check it out!
a = [[1, 2], [2, 3], [3, 4]]
a2 = zip(*a)
a2[0]
it is the same thing as above except somehow it is neater
the zip does the work but requires single arrays as arguments, the *a syntax unpacks the multidimensional array into single array arguments
...
浅谈APM在电子交易系统中的应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...应用服务，软件配置，
第三步，短时间找不出问题，就把负责这套系统的，硬件实施工程师，软件实施工程师，开发工程，DBA全部都抓到客户现场，一个一个的排除问题。
第四步，花了很长时间解决问题，也可能是临时解决...
What is the difference between Flex/Lex and Yacc/Bison?
...nd Yacc are maintained by the Unix SVRx licencees - companies such as IBM (AIX), HP (HP-UX) and Sun (Solaris) have modified versions of Lex and Yacc at their command. MKS also provides MKS Lex and MKS Yacc; however, the Yacc at least has some non-standard extensions.
Flex and Bison are free. (AT&...
一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术
...且数据安全能够得到有效保证的。
结论：区块链是一种把区块以链的方式组合在一起的数据结构，它适合存储简单的、有先后关系的、能在系统内验证的数据，用密码学保证了数据的不可篡改和不可伪造。它能够使参与者对全...
How do I download a file over HTTP using Python?
...ogressbar"
import urllib2
url = "http://download.thinkbroadband.com/10MB.zip"
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'wb')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)
file_si...
How do you deploy your ASP.NET applications to live servers?
...project.com/KB/install/deployer.aspx
I publish website to a local folder, zip it, then upload it over FTP. Deployer on server then extracts zip, replaces config values (in Web.Config and other files), and that's it.
Of course for first run you need to connect to the server and setup IIS WebSite, d...