foos coding

encoding to store it. This will take into account the importance of storage space or the efficiency of coding (three common). 1. ASCII code We all know that ASCII code, a total of 128, with a byte of low 7-bit, 0-31 is the control character Furu space, enter, delete 32-126 is the print characters, can be entered through the keyboard and can be displayed. Figure 1-ascii Code 2, UTF-16 Speaking of UTF must mention Unicode,iso trying to create a new hy

PDU Coding Rules Currently, text and PDU (Protocol Data Unit) are commonly used for sending short messages. Use text mode to send and receive short message code simple, easy to achieve, but the biggest drawback is not to send and receive Chinese text messages, and PDU mode not only support Chinese text messages, but also send English text messages. PDU mode send and receive SMS can use 3 kinds of encoding: 7-bit, 8-bit and UCS2 encoding. 7-bit encod

I said in the last article how to use JNI for H264 encoding, but it's not very practical because of the efficiency problem. After several days of tossing, and referring to the general implementation of the http://www.javaeye.com/problems/27244 Android real-time coding problem, but only thinking, has not entered the stage of code implementation. More important 2 classes of Mediarecorder Parcelfiledescriptor Mediarecorder is a class that Android provi

Java and JavaScript Base64 encoding When developing Java Web applications, it is possible to use Java for BASE64 encoding on the server side, while the client can decode it with JavaScript. This requires consistency of Base64 coding mechanisms on both sides. Using BASE64 encoding, you may encounter a variety of strange situations, and even suspect that the code has bugs. But that's not really the case. Base64 in theory is not a s

Here I briefly talk about the coding problems that are often encountered in front-end HTML and JavaScript daily work. In a computer, the information we store is expressed in binary code. We know, the on-screen display of English, Chinese characters and other symbols and stored binary code of the conversion, that is, coding. There are two basic concepts to note, CharSet and character encoding: CharSet, cha

Programming | coding | who can write code! A few months of programming experience allows you to write "Running applications." Make it easy to run, but coding in the most efficient way requires more effort! You know, most programmers are writing "run code," not "efficient code." We mentioned earlier in this guide course, do you want to be your company's "Most distinguished professional"? Writing "Efficient

1. Str and bytes 1.1 str is text, Bytes is byte Text is encoded (utf-8,gbk,gb2312, etc.)BYTE is not encoded Text encoding refers to how the character uses bytes to represent the organization, and Linux defaults to using UTF-8Bytes 2 can be defined by a B prefix . Python2 and Python3 Coding 2.1 Python2 In Python2, the bytes and STR types are not distinguished, and in Python3 bytes and Str are differentiated, and all operations of STR bytes Support Py

There are five main areas: One.. HTML page UTF-8 encoding problem Two. PHP page UTF-8 encoding problem Three. The problem of using UTF-8 encoding in MySQL database Four. JS-related UTF-8 coding problem Five. Flash-related UTF-8 coding problem I. HTML page UTF-8 encoding problem 1. Add a line before the The order can not be wrong, must be added before 2.html file Encoding problem: Click on the

Parsing Web Development Coding problems url:http://tcking.javaeye.com/blog/726643 In the development of the web will often encounter garbled problems, garbled general out now: 1. Written in the JSP file in the Chinese into garbled 2. The Chinese character of the page becomes garbled 3. Background through Request.getparameter () garbled Code of the basic knowledge Computers can store and transmit information in bytes only, while people need to look at

LZW Coding Algorithm Detailed LZW (Lempel-ziv Welch) encoding, also known as the string table encoding, is Welch the lemple and Ziv proposed by the lossless compression technology improved compression method. GIF image files are an improved LZW compression algorithm, commonly referred to as the GIF-LZW compression algorithm. The following is a brief introduction to the coding and decoding equations of GIF-

As the title, I use Python to parse the file (the file contains Chinese) and write the other file times incorrectly: Unicodeencodeerror: ' ASCII ' codec can ' t encode characters Through the guidance of the Google Great God, determine the following solutions: #coding: Utf-8import sys Reload (SYS) sys.setdefaultencoding (' Utf-8 ') Question: Why do we need reload? Grep-r-i ' setdefaultencoding '/usr/lib/python2.7 output is: /usr

Label:This article is translated from Coding-geek article: How does a relational the database work. Original link: http://coding-geek.com/how-databases-work/#Buffer-replacement_strategies Immediately after the previous article, this article translated the following chapters: One, Log Manager (journal manager)From the previous chapters, we already know that in order to improve performance, the databas

This article is translated from Coding-geek article: How does a relational the database work.Original link: http://coding-geek.com/how-databases-work/#Buffer-replacement_strategiesThis article translates the following chapters: One, Array, Tree and Hash tableThrough the previous chapters, we have already understood the concept of time complexity and merge ordering, and I will introduce three data stru

Coding systemtable of Contents in Emacs 1. Coding System in Emacs 1.1. Environment is utf-8, file code is Utf-8 1.2. Environment is GBK, file code is GBK 1.3. Environment is GBK, file code is Utf-8 1The coding system in Emacs1.1Environment is utf-8, file encoding is Utf-8If the Linux or Mac is utf-8 as the default encodi

This article is a computer class of high-quality pre-sale recommendation >>>>C Safety Coding Standard: the development of safe, reliable, stable system of 98 rules (Original book 2nd edition)Partial catalogsTranslator SequencePrefaceContributors ' profile1th Preprocessor (PRE) 11.1 pre30-c. Do not create a universal character name from a connection 11.2 pre31-c. Avoid side effects of unsafe macro Parameters 31.3 pre32-c. Do not use preprocessor direct

Understanding Sparse CodingSparse Encoding Series: (i)----Spatial Pyramid Summary (ii) Sparse representation of----images summary of--SCSPM and LLC (iii)----Understanding sparse coding (iv)----sparse model and structural sparse model ---------------------------------------------------------------------------The content of this article mainly comes from Kaiyu teacher in CVPR2012 on the tutorial. Before summing up SCSPM and LLC

　　Sparse Coding: This section briefly introduces Sparse Coding, because Sparse Coding is also an important branch in deep learning and can also extract good features of a dataset. The content of this article is to refer to the Stanford deep learning Tutorial: Sparse Coding, Sparse