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Exception Hint: File "demo.py", line 6 syntaxerror:non-ascii character ' \xe4 ' in file demo.py on line 6, but no encoding declared; Http://www.python.org/peps/pep-0263.html for details Reason: When writing python, when you use the Chinese output or comment, the run script prompts you for an error message: Syntaxerror:non-ascii character ' \xe5 ' in file ******* Workaround: Python's default encoding

For example, to find some records that contain Chinese characters, use the MySQL Regular Expression query condition AsciiMySQLSELECT * FROMmy_tableWHERENOTHEX (my_column) REGEXP ^ ([0-7] [0-9A-F]) * $; -- On the contrary, find the record that only contains ASCII characters: SELECT * FROMmy_tableWHEREHEX (my_column) REGEXP For example, to find some records that contain Chinese characters, use the MySQL Regular Expression query condition

Using the python2.7, the runtime appears with the ' ASCII ' codec can ' t encode characters in position 0-8: Ordinal not in range (128) error, by searching for some articles to learn because PYT The default encoding used by the Hon System is ASCII encoding, but the characters in the operation of the code are not in the ASCII range, so the error is incorrect.Worka

Rape is easy to hide, and obscenity is hard to prevent. Today, I am severely molated by ASCII code, but I may not be able to hide the mathematical relationship in the future, however, I believe that with this website, I have a good reference for the speed of code query. I always feel that I have been plagued by some strange problems recently and have encountered them in my actual work and study. Sometimes it is just a small problem. The root cause is

ASCII code Keyboard ASCII code Keyboard ASCII code Keyboard ASCII code Keyboard 27 ESC 32 Space 33 ! 34 " 35 # 36 $ 37 % 38 39 ' 40 ( 41 ) 42 * 43 + 44 ' 45 - 46 . 47

ASCII The ASCII code consists of a total of 128 characters. It only occupies the last seven digits of a byte, and the first one character is uniformly set to 0. For example, the space is 32 (Binary 00100000), and the uppercase letter A is 65 (Binary 01000001 ). The 128 symbols (including 32 control symbols that cannot be printed ). Unicode As mentioned in the previous section, there are multiple encoding

First, prefaceI believe you are familiar with the character nbsp; to achieve multiple consecutive spaces input bar! This article intends to three kinds of HTML entities and JS related operations for further collation and summary, if there are flaws please correct me, thank you.Second, the first knowledge of HTML entitiesBecause some characters in HTML are reserved (such as >, Character entities are represented in two ways:// entity name entity_name; // entity number #entity_number;Entity name b

Remember the data from other Web sites that were crawled to XML in the past at work. However, there is a problem: The Web page will have ASCII control characters. At first I thought it was someone else who joined in order to prevent the collection, and then found one on the filter table plus one. Until they are found, they are all characters in the ASCII table. Find out the reason, it is good to solve. /**

ASCII is a character set, including uppercase and lowercase English letters, numbers, and control characters. It is represented in one byte and ranges from 0 to 127. Because ASCII characters are very limited, each country or region puts forward its own character set on this basis. For example, gb2312, which is widely used in China, provides encoding for Chinese characters, it is expressed in two bytes.

Chinese problems in Python have always been a headache for beginners. Article I will explain this knowledge in detail. Of course, it is almost certain that in future versions, python will completely solve this problem, so we don't have to worry about it. Let's take a look at the Python version: >>> Import Sys >>> SYS. Version ' 2.5.1 (r0000: 54863, Apr 18 2007, 08:51:08) [MSC v.1310 32 bit (Intel)] ' (1) create a file chinesetest. py in Notepad. The default value is ANSI: S = "

Binary to Text (ASCII) Conversiondescription:Write a function that takes in a binary string and returns the equivalent decoded text (the text is ASCII encoded).Each of the 8 bits on the binary string represent 1 character on the ASCII table.Note:in the case of a empty binary string your function should return an empty string.usingSystem;usingSystem.Collections.Ge

This article mainly introduces how php converts an image into an ASCII code, and involves php image processing techniques, for more information about how to convert an image to an ASCII code in php, see the following example. Share it with you for your reference. The details are as follows: Convert a php image to an ASCII code. after conversion, you can direct

#-*-Coding:utf-8-*-Import SysImport timeImport OS #解决unicode和ASCII码转换的问题Reload (SYS) #解决unicode和ASCII码转换的问题Sys.setdefaultencoding (' UTF8 ') #解决unicode和ASCII码转换的问题context = ' Hello World 'f = open ("Hello.txt", ' A + ')F.write (context)F.close ()Date1 = Time.strftime ("%y%m%d", Time.localtime ())Date2 = "+time.strftime" ("%u", Time.localtime ()) + "Week"Date3 = "

chr (13) is a carriage returnChr (10) is a newline character. The ASCII function converts the character to its corresponding ASCII code,The CHR function converts a number (acscii code ) into the corresponding character. the difference between carriage return and line breakin ASCII, carriage returns and line feeds are different characters. 0X0D is the carriage re

Remember the data from other Web sites that were crawled to XML in the past at work. However, there is a problem: The Web page will have ASCII control characters. At first I thought it was someone else who joined in order to prevent the collection, and then found one on the filter table plus one. Until they are found, they are all characters in the ASCII table. Find out the reason, it is good to solve./**

The solution to reading and writing json Chinese ASCII garbled characters is to read and write jsonascii garbled characters. Today, I want to help the front end write a small background, that is, read the data and convert it to json for him to display. The data is very simple, but there is a problem during processing. The file involves Chinese processing, and the json format written after each processing is ASCII