Comment Syntax

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程式或網站服務設定檔的註解語法 (Comment syntax for programming languages or server configuration file) << Testing

A: Apache config[edit]

Configuration Files - Apache HTTP Server Version 2.4

# single line comment


B: Bash (shell script)[edit]

Bash (Unix shell)

# single line comment

C: CSS[edit]

CSS Code: viewable when user view the HTML source code[1]

/* multiple lines
comments
*/

Conditional Comments for IE Browser msie.png

D: DOS[edit]

DOS Command Code[2]:

REM [comment]
ex: REM single line comment

H: HTML[edit]

HTML Code: viewable when user view the HTML source code

<!-- This is an HTML Comment -->

<!-- multiple 
lines -->

J: Javascript, Java, JSP[edit]

Javascript Code: viewable when user view the HTML source code

//single line comment

/* multiple 
lines
*/


Java[3] & JSP[4]

//single line comment

/* multiple 
lines
*/

M: MySQL[edit]

MySQL configuration file

#single line comment

-- single line comment. Note there are one space between '--' with 'single line comment'.

/* multiple
   lines
   comments
*/

P: Perl, PHP, Python[edit]

Perl Code[5]:

#single line comment


PHP Code: not viewable when user view the HTML source code[6]

# single line comment
// another single line comment

/* multiple 
lines
*/


php.ini

; single line comment

Python: The IPython Notebook[7][8]

# single line comment
'''
This is the multiline
comments.
'''

R[edit]

R: The R Project for Statistical Computing: Commenting Guidelines

#single line comment

Multiline lines comment : Use RStudio (Editing and Executing Code – RStudio Support) to comment/uncomment the selected code. r - Multiline Comment Workarounds? - Stack Overflow

S: SIKULI, SQL[edit]

SIKULI Code: (Icon exclaim.gif multiple line comment is not supported for SIKULI IDE 1.x[1])

#single line comment

SQL Command / MySQL 5.1 Comment Syntax:

-- single line comment

/* multiple 
lines
*/

V: VBScript[edit]

VBScript Coding Conventions, VBScript Tutorial - Operators

' single line comment

X: XML[edit]

XML Code[9] [10]:

<!--
	multiple lines
-->

References

further reading