Python supports many languages and can process arbitrary characters. Here, I will take a closer look at how python can process different languages.
One thing to note is that when Python needs to perform encoding conversion, it will use internal encoding. The conversion process is as follows:
Original encoding-> internal encoding-> destination Encoding
Python uses Unicode internally, but the use of Unicode needs to consider its encoding format has two, one is the
sat together and shoot their heads to come up with a method: all the characters in the language are represented by the same character set, this is Unicode.
The original Unicode Standard UCS-2 uses two bytes to represent a single character, so you can often hear Unicode uses two bytes to represent a single character. But soon some people think that 256*256 is too small, or not enough, so there is a UCS-4 st
Various java string encoding and conversion
Import java. io. unsupportedEncodingException;/*** encode the conversion string */public class ChangeCharset {/** 7-bit ASCII character, it is also known as the basic Latin block of the ISO646-US, Unicode Character Set */public static final String US_ASCII = US-ASCII;/** ISO Latin alphabet No.1, also known as ISO-LATIN-1 */public static final String ISO_8859_1 = ISO-8859-1;/** 8-bit UCS conversion format */p
Text files usually identify their encoding methods through the first two bytes, but UTF-32 encoding uses the first four bytes to identify their encoding methods. The following are some encoding format identifiers:
Encoding Method
First few bytes
ANSI
No format definition
Unicode
FF fe
Unicode big endian
Fe FF
UTF-8
EF bb
UTF-16/UCS
understand what gbk is. It is worth noting that it is not a national standard, but a standard. With the launch of the gb18030-2000 national mark, it will fulfill its historical mission in the near future.Gbk encoding is a new Chinese encoding developed in mainland China and equivalent to the ucs to expand national standards. Contains (including special characters) 22014 characters in totalUnicodeUsing a 16-bit encoding system, the character set is th
When Vim is started, the. vimrc file under the current user's root directory is automatically read, and the file can contain settings or even scripts."Set EncodingSet encoding=utf-8Set Fencs=utf-8, Ucs-bom,Shift-Jis,gb18030,gbk,gb2312,cp936set fileencodings=utf-8, ucs-Bom,chinese"Language SettingsSet LANGMENU=ZH_CN. utf-8 "Set Syntax highlightingsyntax Enablesyntax on"set a color schemeColorScheme torte"You
] It allows the old, distracting encoding to be converted directly from one another to Unicode encoding without losing any information.Implementation MethodUnicode encoding of one character is deterministic, but in the actual transmission process, the implementation of Unicode encoding differs depending on the design of different system platforms, and for space-saving purposes. The implementation of Unicode is known as the Unicode conversion format (Unicode Transformation format, referred to as
repeated into different character codes. [1] It allows the old, distracting encoding to be converted directly from one another to Unicode encoding without losing any information.Implementation methodUnicode encoding of one character is deterministic, but in the actual transmission process, the implementation of Unicode encoding differs depending on the design of different system platforms, and for space-saving purposes. The implementation of Unicode is known as the Unicode conversion format (Un
subsequent code values are affected.Because the network transmission is easy to damage the byte stream, once the byte stream is damaged it is difficult to recover.Utf-8 is more suitable for the network transmission of characters using a single byte of storage, the Chinese characters using three bytes , the other single-byte damage will not affect the other characters, in the coding efficiency between GBK and utf-16, coding efficiency and security of the balanceSo Utf-8 is the ideal Chinese cod
, none is returned. Z (str or none) [char *] is the same as S. z# (str or none) [Char *,int] is the same as s#. U (str) [Py_unicode *] Converts a null-terminated buffer of Unicode (UCS-2 or UCS-4) data to a Python UNICODE object. If the Unicode buffer pointer is NULL, none is returned. u# (str) [Py_unicode *,int] Converts the Unicode (UCS-2 or
======= first introduce the next bom==============
Bytes Encoding FormEF BB BF UTF-8FF FE UTF-16 aka UCS-2, Little EndianFE FF UTF-16 aka UCS-2, Big endianFF FE UTF-32 aka UCS-4, Little endian.FE FF UTF-32 aka UCS-4, Big-endian.
=======================
Reading a Unicode CSV file
function Fopen_utf8 ($filename) {$en
Various encoding conversions for Java stringsFrom: http://www.blogjava.net/rabbit/archive/2008/03/27/189009.htmlImport java.io.UnsupportedEncodingException;/*** Encoding of converted Strings*/public class Changecharset {/** 7-bit ASCII character, also known as the basic Latin block of the iso646-us, Unicode character set */public static final String us_ascii = "Us-ascii";/** ISO Latin alphabet, also known as iso-latin-1 */public static final String iso_8859_1 = "Iso-8859-1";/** 8-bit
decide Which encoding of the character set is used to save the text. Software has three ways to determine the character set and encoding of text: The most standard approach is to detect the first few bytes of text, such as the following table: Opening byte charset/encodingef BB BF utf-8fe FF utf-16/ucs-2, Little Endianff fe utf-16/ucs-2, big Endianff fe utf-32/ucs
Different IOS versions and platforms have different content in each feature set. The specific feature content is subject to the Release Notes of the corresponding IOS version.
IOS name is generally in the following format: PPPPP-FFFFF-MM
PPPPP: IOS platform
FFFFF: feature set
MM: running environment and packaging ModeCiscoIOS Platform
As5200
Cisco AS5200 Universal Access Server
Ca1003
Cisco Advantage 1003
Ca1005
Cisco Advantage 1005
Cpa1003
Cisc
View the CPU, memory, serial number, patch, maitenance level, and other information of Aix.
1. View CPU:
1.1 # pmcycles (starting from Aix 5.1 In the bos. pmapi. pmsvcs package)
1.2 # lsattr-El proc *
2. view memory:
2.1 # lsattr-El mem *
2.2 # lsattr-El sys0-A realmem
2.3 # bootinfo-R
2.4 # getconf real_memory (5l, HPUX also has this command, but the usage is different. In addition, you can use getconf hardware_bitmode in Aix.
And kernel_bitmode to check whether the hardware and operating sys
ar5009 802.11a/G/n WiFi adapter
Atheros ar9285
Broadcom 4310-series (in Alibaba Dell laptops)
D-Link airplus g DWL-G510 wireless PCI adapter (driver version 3.0.1.0)
Dell 1510 wireless n adapter, Broadcom version, with broadcom_bcm43xx_5.60.18.8_win6x.exe from http://wikidrivers.com/wiki/Broadcom_BCM43xx_5.60.18.8
Intel 5100/5300 (with latest drivers from Intel's site, version 13.0.0.107, 64bit systems only)
Ralink rt2870 (in memory 802.11n USB dongl
deposits.
1: How to get 100 yuan?A: First retrieve 5100 yuan, and then save 5000 yuan.
2: How to save 100 yuan?A: You need to pay 5000 yuan first, and then save 5100 yuan.
Haha, although it is troublesome, it is always better than queuing, and the white-collar workers in the bank are overwhelmed.
Today, I read the news, and I introduced how to change the price of 100 yuan to 10 yuan, bank staff often s
(LBA)/Dev/hda3 2806 7751 39728745 5 extended/Dev/hda5 2806 3825 8193118 + 83 Linux/Dev/hda6 3826 5100 10241406 83 Linux/Dev/hda7 5101 5198 787153 + 82 Linux swap/Solaris/Dev/hda8 5199 6657 11719386 83 Linux/Dev/hda9 6658 7751 8787523 + 83 Linux
In the above blocks, it indicates the partition size, and the unit of blocks is byte. We can convert it to M. For example, if the size of the first partition/dev/hda1 is converted to m, it should be 6144831/10
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