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ArticleSource http://www.ruanyifeng.com/blog/2007/10/ascii_unicode_and_utf-8.html At noon today, I suddenly wanted to figure out the relationship between Unicode and UTF-8, so I began to look up information online. As a result, this problem is more complicated than I thought. After lunch, we can see that the problem is fixed at AM. Below are my notes, mainly used to sort out my own ideas. However, I try to make it easy to understand and hope it can be useful to other friends. After all,

Character encoding is the cornerstone of computer technology. To be familiar with computers, you must understand a little bit about character encoding. 1. ASCII code We know that in a computer, all information is eventually represented as a binary string. Each binary bit has two states: 0 and 1. Therefore, eight binary bits can combine 256 states, which is called a byte ). That is to say, a single byte can be used to represent 256 different States

At noon today, I suddenly wanted to figure out the relationship between Unicode and UTF-8, so I began to look up information online. As a result, this problem is more complicated than I thought. After lunch, we can see that the problem is fixed at AM. Below are my notes, mainly used to sort out my own ideas. However, I try to make it easy to understand and hope it can be useful to other friends. After all, character encoding is the cornerstone of computer technology. To be familiar with computer

From: Http://www.ruanyifeng.com/blog/2007/10/ascii_unicode_and_utf-8.html At noon today, I suddenly wanted to figure out the relationship between Unicode and UTF-8, so I began to look up information online. As a result, this problem is more complicated than I thought. After lunch, we can see that the problem is fixed at AM. Below are my notes, mainly used to sort out my own ideas. However, I try to make it easy to understand and hope it can be useful to other friends. After all, character encod

1 ASCII codeThe relationship between English characters and bits is uniformly stipulated. The ASCII code altogether specifies a 128-character encoding. For example, the space "space" is 32 (binary 00100000), and capital A is 65 (binary 01000001). These 128 symbols (including 32 control symbols that cannot be printed out) occupy only one byte of the following 7 bits, and the first 1-bit uniform is 0.2 Non-

Here are some of the problems I have encountered:I'm using the PIP install fabric times Error:Cleaning up ...Command python setup.py egg_info failed with error code 1 IN/TMP/PIP_BUILD_ROOT/PYNACLTraceback (most recent):File "/usr/bin/pip", line 9, Load_entry_point (' pip==1.5.4 ', ' console_scripts ', ' Pip ') ()File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 235, in mainReturn Command.main (Cmd_args)File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 161, in mainText

Tagged python python tutorial python development video python language video pythonToday, when learning Python programming, this error message appears as follows:/users/mac/python/mac/bin/python/users/mac/desktop/3333/3333.pyFile "/users/mac/desktop/3333/3333.py", line 8Syntaxerror:non-ascii character ' \xe4 ' in file/users/mac/desktop/3333/3333.py to line 8, but no encoding declared; See http://www.python.org/peps/pep-0263.html for detailsProcess fin

/*! Title: After describing the input three characters (which can be duplicated), the ASCII code of each character is printed in the order of three characters from small to large. Enter the first line to enter a number n, indicating that there are n sets of test data. The next n rows enter multiple sets of data, each with a row of three characters and no spaces between them. Output for each set of input data, output one line, the middle of the charact

Problem description Input Three characters, the ASCII code of each character is printed in order from small to large to output these three characters.Input data has more than one group, each of which consists of three characters and no spaces between them.Output for each set of input data, one line is printed, and the characters are separated by a space.Sample INPUTQWEASDZXCSample outpute q wa d sc x z below is the code:#include 　　The biggest difficul

/** Copyright (c) 2014, Yantai University School of Computer Science* All rights reserved.* File name: test.cpp* Author: Xiaokai* Completion Date: May 19, 2015* Version Number: v1.0** Description of the problem:* Input Description:* Program output:*/After the title description enters three characters, the ASCII code of each character outputs the three characters in the order from small to large. There are several groups of input input data, one row fo

Prompt error:Unicodedecodeerror: 'ascii' codec can't decode byte 0xe5 in position 240: Ordinal not in range (+)Probably is such a sentence, the general situation, in the file header plus:# coding=utf-8 should be able to solve the. However, there will be a situation where the problem arises. At this point you need to add the following code to the file:Import sys Reload (SYS) sys.setdefaultencoding ('utf-8')I heard that this is not safe, is not a way t

This article is a PHP ASCII code conversion class for a detailed analysis of the introduction, the need for friends to refer to the copy code code as follows: class ASCII { function decode ($STR) { Preg_match_all ("/(d{2,5})/", $str, $a); $a = $a [0]; foreach ($a as $dec) { if ($dec { $utf. = Chr ($DEC); } else if ($dec { $utf. = Chr (($dec-($dec% 64))/64); $utf. = chr (128 + ($dec% 6

DescribeAfter entering three characters (which can be repeated), the ASCII code of each character is printed in the order of three characters from small to large. Input The first line enters a number n, which indicates that there are n sets of test data. The next n rows enter multiple sets of data, each with a row of three characters and no spaces between them. Output For each set