escape character

One: Escape character\ r means accept keyboard input, equivalent to press ENTER. \ n indicates a line break. \ t tab, equivalent to Table key\b backspace key, equivalent to back Space\ ' single quotation mark\ ' double quotes\ \ represents a

JS, \ has a special purpose. Backslashes allow us to avoid the usual way of interpreting single quotes, which is simply an apostrophe when the single quote is not used to mark the end of a string: ' You\ ' re right, it cant\ ' be a quote '

Div ID = "Divc"   /> Script Language = "JavaScript" > VaR Div = Document. getelementbyid ( " Divc " ); VaR Html =   "" Html + =   "" +   " " +   " " Alert ( ' Javascript ' )\ " > DHTML innerhtml

MySQL Escape Character "/"   MySQL recognizes the following escape characters:   /0 An ASCII 0 (NUL) character. /N A newline character. /T A positioning character. /R A carriage return. /B A return character. /' A single quotation mark. /" A double

First, the commonly used escape character \ nthe carriage return to newline (10) \ "Double quotation marks \ t transverse jump lattice (9) A/s null character (0) \v Vertical jump (11) \a Bells (7) \b Backspace (8)

Mysql escape character insertion, query, and display problems, dial RT, usually php + mysql single quotes, "\" symbol insertion generally uses addslashes () method & nbsp; if, insert $ varstr & nbsp ;=& nbsp; test' \. The problem is as follows: 1.

Start and end start symbols of a row: ^ end Symbol: $ for example, ^ cat should be interpreted as C as the first character of a line, followed by a, followed by T Example: String STR = "catabdcatdetfcat"^ Cat: Verify that the row starts with C

Linux shell Escape Character metacharacter wildcard special character summary, shell escape1. linux shell wildcard (wildcard) Wildcards are processed by shell (not by the command statements involved, but we have not found any introduction to these

C # Escape characters:• A special character constant;• Start with a backslash "\" followed by one or several characters.• Have a specific meaning, different from the original meaning of the character, it is called "escape" character.• Used primarily

The comment character:1#include 2 intMain ()3 {4 int/*...*/I//int i;5 Char* s ="abcdefgh//hijklmn";//S[]=ABCDEFGH//HIJKLMN; 6 //is it a \7Valid comment?//is it a valid comment? 8 inch/*...*/t i;//In t i; 9 return 0;Ten}Annotation

Escape character Significance ASCII code value (decimal) \a Bell (BEL) 007 \b BACKSPACE (BS) 008 \f Page Break (FF) 012 \ n Line Break (LF)

$str = Preg_quote ("/\d{3} (\-\d{4})/"); Echo $str; ?> Copy CodeResults:/\\d\{3\}\ (\\\-\\d\{4\}\)/Example 2: $str = Preg_quote ("/\d{3} (\-\d{4})/", "3"); Echo $str; ?> Copy

ArticleDirectory Constant Escape Character Constant Escape Character The following escape characters enable normal characters to indicate different meanings. Escape characters Description /' Single

MySQL Escape character special characters RT, usually php+mysql single quotes, "\" symbol insertion generally using addslashes () mode If, now insert $varstr = Test ' \, the problem is as follows:1. With addslashes (), insert after insert in MySQL

Escape character Describe \ (at end of line) Line continuation character \\ Backslash symbol \‘ Single quotation marks \" Double quotes \a Bell

Escape character Significance ASCII code value (decimal) \a Bell (BEL) 007 \b BACKSPACE (BS) to move the current position to the previous column 008 \f Page Break (FF),

1. Escape character \ t: Tab \ n: Enter \b: Backspace \ r: Enter \ ": Double quotation marks \ \: Backslash (commonly used in the writing of file paths) The carriage return character in Windows system is

Commonly used escape characters and meanings Escape character Meaning \ (at end of line) Line continuation character \\ Backslash symbol \‘ Single quotation marks

Escape characterThe escape character is represented by "\". Common escape characters are as follows:1, ' \ n ' carriage return2, ' \ t ' tab character, a 8-10-character jump to the right3, ' \ \ ' means ' \ '4, ' \ ' denotes single quotation marks5,

String formatting symbolic meaning Symbol Description %c Formatting characters and their ASCII code %s formatting strings %d formatting integers %o