A detailed description of string formatting str. format in Python, pythonstr. format
Preface
Python 2.6 adds a new string formatting method:str.format(). Its basic syntax is to replace the previous % through {} And ..
Placeholder syntax during formatting:
replacement_field ::= "{" [field_name] ["!" conversion] [":" format_spec] "}"
"Ing" rule
Pass location
str.format() You can accept unlimited parameters, a
Complete control Letter format of printf format
The complete format of printf format control:%-0 M. n l or H charactersThe following describes the composition formats:① %: Indicates the starting symbol of the format description, which is indispensable.②-: "Yes" indicates the
statement: These articles about ffmpeg are only used to record my learning process and for later review, some of the text in the article may be directly from other articles, books or literature, learning ffmpeg related knowledge is to use on Android, I was just beginning to contact learning, Please also indicate if there is any mistake. Audio format is to play in the computer or processing audio files, that is, to the sound file for the number, mode c
The complete format of printf format control:%-0 M. n l or H charactersThe following describes the composition formats:① %: Indicates the starting symbol of the format description, which is indispensable.②-: "Yes" indicates the left-aligned output. If it is omitted, "yes" indicates the right-aligned output.③ 0: if there is 0, it indicates that the specified vacan
C language printf output format control, printf output format
C language printf output format Control
Printf is familiar to everyone, but it is rare to estimate its usage. Go to another article and organize it in another day.
1. Conversion specifiers
% A (% A) floating point number, hexadecimal number, and p-(P-) Notation (C99)
% C characters
% D signed decimal i
u disk mobile hard drive hint format what to do property is 0 bytes The file format is raw.
===============================================
Have you ever encountered a file, U disk, mobile hard drives and other properties often appear inexplicable expansion of the problem, is a 4G u disk, the results show more than 10 g, sometimes shown as 0 bytes of the situation, even if the right button is still prompted
C ++ formatted output, C ++ output format control, and output formatWhen outputting data, for the sake of simplicity, the system usually does not specify the output format. The system uses the default format based on the data type, but sometimes you want to output data in the specified format, for example, an integer m
Quick Start introduction to the powerful Java String. format (), javastring. format
Preface
Since Java 5.0, the String class has added a powerful String formatting method format (). There are still not many people using this method till now, which is a waste. This article takes you through the function of this method quickly. When you want to
One,%, or format1,%, Format Imperial PKThe format string in Python currently has two camps:% and format, which one should we choose?Since Python2.6 introduced the format-formatted string method, I think the% or format is not a problem at all. Don't believe you look down.# de
when the result has a decimal number.3. format string (format)[Mark] [Output minimum width] [. precision [Length] type "%-MD": left-aligned, if M is less than actual, the actual output."%m.ns": output m bit, take string (from left) n bit, left fill space, when n>m or M omitted m=ne.g. "%7.2s" input chinaOutput "CH" "%m.nf": Output floating-point number, M is width, n is the right-hand side of the decimal p
Datetime dt = datetime. Now; //, January 1, October 4, 2010String STR = "";// STR = string. Format ("{0: y yy yyy yyyy}", DT); // 10 10 2010 2010// STR = string. Format ("{0: m mm mmm}", DT); // 10 May October 10// STR = string. Format ("{0: d dd DDD dddd}", DT); // 4 04 Monday// STR = string. Format ("{0: h hh}", DT);
Set the default encoding format for the new common file, which is the file save format.
When you do not set the MyEclipse, the default save file encoding, generally with the Simplified Chinese operating system (such as WINDOWS2000,WINDOWSXP) of the code, that is, GBK.
Under the Simplified Chinese system, ANSI encoding represents GBK encoding, and ANSI encoding represents JIS encoding under Japanese operatin
1. Escape
C # uses placeholders such as {0}, {1: yyyy-MM-dd}. What if the formatted string itself contains {or? The answer is: Use two {or} hyphens to represent a single one.
For exampleStringStr1 = String. Format ("{Hello}, {0}, Now is {1: yyyy-MM-dd HH: mm: ss }}}","Jinglecat",DateTime. Now );// {Hello}, Jinglecat, Now is {23:06:35}StringStr2 = String. Format ("{Hello}, {0}, Now is {1: yyyy-MM-dd HH: mm:
This series of articles are all copied from msdn. Remember them first, and they will be translated step by step later.
Due to my limited level of English, the translation may not be completely correct. Please note that.
Avi riff file reference
This is preliminary documentation and subject to change.
(The Microsoft AVI file format is a riff File Specification used with applications that capture, edit, and play back audio-video sequences. in general, A
I. Definition
String. Format Is to replace each format item in the specified string type data with the text equivalent item of the corresponding object value.
For example:
(1)
String p1 = "Jackie ";
String P2 = "aillo ";
Response. Write (string. Format ("Hello {0}, I'm {1}", P1, P2 ));
(2)
Response. Write (string.
Click here to read the original Description of UseThe Dos2unix command is used to convert a DOS-formatted text file into Unix (Dos/mac to UNIX text, format Converter). Dos text file is based on \ r \ n As a break mark, expressed as 16 binary is 0D 0 A. The text file under Unix is marked with \ n as a break mark, which means that the 16 binary is 0 a. The DOS format text file under Linux, with the lower vers
About format formatting output and format formatting
What isFormat?
Compared with the basic formatting output, the "%" method is used. The format function is powerful. This function uses the string as a template and uses the input parameters for formatting, the braces "{}" are used as special characters instead of "%", which is similar to the placeholder in C #.
MySQL encoding format. mysql modifies the encoding format.
I. Problem Introduction
When mysql is installed, the encoding format is configured as UTF-8. Therefore, mysql character_set_client, character_set_connection, character_set_database, character_set_results, character_set_server, and character_set_system are encoded in UTF-8.
The command to view the encoding
In Python, format is used to format strings.Syntax
It uses {} And: to replace %. "Ing" ExamplePass location
In [1]: '{0},{1}'.format('kzc',18) Out[1]: 'kzc,18'In [2]: '{},{}'.format('kzc',18) Out[2]: 'kzc,18'In [3]: '{1},{0},{1}'.format('kzc',18) Out[3]: '18,kzc,18'
The
Tags: binlog format master-slave copy ROWDemandWithin the company there are dozens of sets of MySQL master-slave instances based on traditional replication, and the Binlog format is statement format. After taking over these MySQL master and slave instances, you have thought about changing the Binlog format to the row
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