BeautifulSoup很赞的东西 最近出现一个问题:Python 3.3 soup=BeautifulSoup(urllib.request.urlopen(url_path),"html.parser") soup.findAll("a",{"href":re.compile('^http|^/')}) 出现warning: Some characters could not be decoded, and were replaced wi…
转自出处 Write a program that gives count of common characters presented in an array of strings..(or array of character arrays) For eg.. for the following input strings.. aghkafgklt dfghako qwemnaarkf The output should be 3. because the characters a,…
http://linux.about.com/library/cmd/blcmdl1_sh.htm http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html Linux / Unix Command: shCommand LibraryNAMEbash - GNU Bourne-Again SHell SYNOPSISbash [options] [file] DESCRIPTIONBash is an sh…
2. Built-in Functions https://docs.python.org/3.4/library/functions.html?highlight=file The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order. Built-in Funct…
关于算术编码的具体讲解我不多细说,本文按照下述三个部分构成. 两个例子分别说明怎么用算数编码进行编码以及解码(来源:ARITHMETIC CODING FOR DATA COIUPRESSION): 接下来我会给出算术编码的压缩效果接近熵编码的证明方法(这一部分参考惠普公司的论文:Introduction to Arithmetic Coding - Theory and Practice): 最后我会详细说明一下算数编码的实现代码(代码来源:ACM87 ARITHMETIC CODING F…
2.1 Built-in Functions The Python interpreter has a number of functions built into it that are always available. They are listed here in alphabetical order. __import__( name[, globals[, locals[, fromlist]]]) This function is invoked by the import sta…