我想，在我正式开始学习一些计算机课程和如何搭建个人博客网站之前，我要重新将Markdown从头到尾地学习一下。事实上，这篇文章也是使用Markdown格式来进行书写的。
很早就听说了Markdown的大名，<u>目前一些主流的博客网站或者论坛，还有一些社交媒体都支持以Markdown格式进行创作。</u>
然而我却一直没有系统学习和了解Markdown，它于我而言有些像最熟悉的陌生人。
那什么是Markdwon？为什么要学习它，它有什么用呢？
下面简单地介绍一下Markdown
Markdown是一种轻量级标记语言，创始人为约翰·格鲁伯。它允许人们使用易读易写的纯文本格式编写文档，然后转换成有效的XHTML（或者HTML）文档。[4]这种语言吸收了很多在电子邮件中已有的纯文本标记的特性。
由于Markdown的轻量化、易读易写特性，并且对于图片，图表、数学式都有支持，目前许多网站都广泛使用Markdown来撰写帮助文档或是用于论坛上发表消息。如GitHub、Reddit、Discord、Diaspora)、Stack Exchange、OpenStreetMap 、SourceForge、简书等，甚至还能被用来撰写电子书。
这是引用自维基百科中关于Markdown的定义说明，实际上Markdown就是用来给你所写的文档添加一些格式，使其变得更加易读，但是它又不像富文本编辑器（如Word）那样繁琐，当然它的格式也远没有富文本编辑器那么丰富，它的有点在于方便快捷，可以满足写文档的基本需求，可以释放你的右手，你的双手完全不需要离开键盘，而且越来越多的网站也开始兼容Markdown，因此学习Markdown可以有利于编写你自己的文档。
刚才简单介绍了一下Markdown，下面着重介绍Markdown如何使用，也就是介绍一下Markdown的语法
标题语法
在要创建的标题前添加井号(#)，井号的个数代表不同的标题等级，例如
\# 一级标题
\## 二级标题
\### 三级标题
\#### 四级标题
\##### 五级标题
\###### 六级标题
这里所展现出的效果如下：
一级标题
二级标题
三级标题
四级标题
五级标题
六级标题
它们随着级数越来越大，重要级缺越来越小，这像书本中可能会出现的，第一章、1.1节、1.1.1，有一个逐级向下细分的过程，在我使用Typora写这篇文章的时候，我发现一级和二级标题下方会有一条浅色的分割线。
正文语法
当我们写完标题后，就该写正文了，也就是自然段（段落），在Markdown中，以空白行分割出不同的段落，并且不对段落做缩进处理，就是说段落与段落之间有空行，段落不用首行缩进二字符。当你写正文时发现内容过长，需要换行，此时为了兼容性，最好在句子末尾加上\<br>以换行，或者干脆将那部分正文分成若干段落
强调语法
在文章中可能会有某些重要的词语或短句需要引起读者注意，此时可以通过加粗、倾斜、下划线、删除线来达到强调的目的，下面介绍这三种样式的语法：
1.加粗
在要加粗的内容前后分别输入两个星号（**）
如：这是一个*加粗*示例
那么它呈现出来的效果应该是这样的：
这是一个加粗示例
2.倾斜
在要倾斜的内容前后分别输入一个星号（*）
如：这是一个*倾斜*示例
那么它呈现出的效果应该是这样的：
这是一个倾斜示例
3.下划线
由于Markdown原生语法并不支持给文字下划线，这里我们使用HTML来完成，把要加下划线的内容放到\<u>\</u>中
如:这是一个\<u>下划线\</u>示例
它呈现出的效果是这样的：
这是一个<u>下划线</u>示例
4.删除线
在要加删除线的内容前后分别输入两个波浪号(~~)
如：这是一个\~~删除线~~示例
它呈现的效果应该是这样的:
这是一个删除线示例
引用语法
当你在写正文段落时，有时可能需要借用一下别人的话，这时引用语法就起了作用
它的用法是，在一行用一个大于号（>）来表示，如果你的引用有好几行，你需要在每行开头都加上一个大于号，就像这样：
\>这就是我要引用的话！
它呈现的效果就是这样：
这就是我要呈现的话啦！
代码语法
代码块和引用块的用法比较像，在写技术文档时，你可能会需要展示一段代码，Markdown中的代码块可以让你的代码与普通文本区分开，根据不同的语法为其添加高亮，使其便于阅读
它的语法是，在你的代码段前后分别加上三个反引号（\```），这个符号和波浪号在一个按键上，在前面三个反引号后面可以紧接着写此代码段是什么编程语言，就像这样：
\```c++
int main(){
cout>>"这是一个代码段示例";}
\```
它呈现出的效果就是这样：
int main(){
cout>>"这是一个代码段示例";
}这里代码高亮的样式即为C++风格
那么Markdown中代码段都支持哪些编程语言呢？见下表
| 语言名称 | Markdown 语言声明 | 常见文件名 |
|---|---|---|
| 1C Enterprise | 1c-enterprise | *.bsl |
| 4D | 4d | *.4dm |
| ABAP | abap | *.abap |
| ABNF | abnf | *.abnf |
| AGS Script | ags-script, ags | *.asc |
| AMPL | ampl | *.ampl |
| ANTLR | antlr | *.g4 |
| API Blueprint | api-blueprint | *.apib |
| APL | apl | *.apl |
| ASN.1 | asn.1 | *.asn |
| ASP | asp, aspx, aspx-vb | *.asp |
| ATS | ats, ats2 | *.dats |
| ActionScript | actionscript, actionscript3, as3 | *.as |
| Ada | ada, ada95, ada2005 | *.adb |
| Adobe Font Metrics | adobe-font-metrics, acfm, amfm | *.afm |
| Agda | agda | *.agda |
| Alloy | alloy | *.als |
| Alpine Abuild | alpine-abuild, abuild, apkbuild | APKBUILD |
| Altium Designer | altium-designer, altium | *.OutJob |
| AngelScript | angelscript | *.as |
| Ant Build System | ant-build-system | ant.xml |
| ApacheConf | apacheconf, aconf, apache | *.apacheconf, .htaccess |
| Apex | apex | *.cls |
| Apollo Guidance Computer | apollo-guidance-computer | *.agc |
| AppleScript | applescript, osascript | *.applescript |
| Arc | arc | *.arc |
| AsciiDoc | asciidoc | *.asciidoc |
| AspectJ | aspectj | *.aj |
| Assembly | assembly, asm, nasm | *.asm |
| Asymptote | asymptote | *.asy |
| Augeas | augeas | *.aug |
| AutoHotkey | autohotkey, ahk | *.ahk |
| AutoIt | autoit, au3, AutoIt3, AutoItScript | *.au3 |
| Awk | awk | *.awk |
| Ballerina | ballerina | *.bal |
| Batchfile | batchfile, bat, batch, dosbatch, winbatch | *.bat |
| Befunge | befunge | *.befunge |
| BibTeX | bibtex | *.bib |
| Bison | bison | *.bison |
| BitBake | bitbake | *.bb |
| Blade | blade | *.blade |
| BlitzBasic | blitzbasic, b3d, blitz3d, blitzplus, bplus | *.bb |
| BlitzMax | blitzmax, bmax | *.bmx |
| Bluespec | bluespec | *.bsv |
| Boo | boo | *.boo |
| Brainfuck | brainfuck | *.b |
| Brightscript | brightscript | *.brs |
| C | c | *.c |
| C# | c#, csharp | *.cs |
| C++ | c++, cpp | *.cpp |
| C-ObjDump | c-objdump | *.c-objdump |
| C2hs Haskell | c2hs-haskell, c2hs | *.chs |
| CLIPS | clips | *.clp |
| CMake | cmake | *.cmake, CMakeLists.txt |
| COBOL | cobol | *.cob |
| COLLADA | collada | *.dae |
| CSON | cson | *.cson |
| CSS | css | *.css |
| CSV | csv | *.csv |
| CWeb | cweb | *.w |
| Cabal Config | cabal-config, Cabal | *.cabal, cabal.config |
| Cap’n Proto | cap’n-proto | *.capnp |
| CartoCSS | cartocss, Carto | *.mss |
| Ceylon | ceylon | *.ceylon |
| Chapel | chapel, chpl | *.chpl |
| Charity | charity | *.ch |
| ChucK | chuck | *.ck |
| Cirru | cirru | *.cirru |
| Clarion | clarion | *.clw |
| Clean | clean | *.icl |
| Click | click | *.click |
| Clojure | clojure | *.clj, riemann.config |
| Closure Templates | closure-templates, soy | *.soy |
| Cloud Firestore Security Rules | cloud-firestore-security-rules | firestore.rules |
| CoNLL-U | conll-u, CoNLL, CoNLL-X | *.conllu |
| CodeQL | codeql, ql | *.ql |
| CoffeeScript | coffeescript, coffee, coffee-script | *.coffee, Cakefile |
| ColdFusion | coldfusion, cfm, cfml | *.cfm |
| ColdFusion CFC | coldfusion-cfc, cfc | *.cfc |
| Common Lisp | common-lisp, lisp | *.lisp |
| Common Workflow Language | common-workflow-language, cwl | *.cwl |
| Component Pascal | component-pascal, delphi, objectpascal | *.cp |
| Cool | cool | *.cl |
| Coq | coq | *.coq |
| Cpp-ObjDump | cpp-objdump, c++-objdump | *.cppobjdump |
| Creole | creole | *.creole |
| Crystal | crystal | *.cr |
| Csound | csound, csound-orc | *.orc |
| Csound Document | csound-document, csound-csd | *.csd |
| Csound Score | csound-score, csound-sco | *.sco |
| Cuda | cuda | *.cu |
| Cycript | cycript | *.cy |
| Cython | cython, pyrex | *.pyx |
| D | d | *.d |
| D-ObjDump | d-objdump | *.d-objdump |
| DIGITAL Command Language | digital-command-language, dcl | *.com |
| DM | dm, byond | *.dm |
| DNS Zone | dns-zone | *.zone |
| DTrace | dtrace, dtrace-script | *.d |
| Dafny | dafny | *.dfy |
| Darcs Patch | darcs-patch, dpatch | *.darcspatch |
| Dart | dart | *.dart |
| DataWeave | dataweave | *.dwl |
| Dhall | dhall | *.dhall |
| Diff | diff, udiff | *.diff |
| DirectX 3D File | directx-3d-file | *.x |
| Dockerfile | dockerfile | *.dockerfile, Dockerfile |
| Dogescript | dogescript | *.djs |
| Dylan | dylan | *.dylan |
| E | e | *.E |
| EBNF | ebnf | *.ebnf |
| ECL | ecl | *.ecl |
| ECLiPSe | eclipse | *.ecl |
| EJS | ejs | *.ejs |
| EML | eml | *.eml |
| EQ | eq | *.eq |
| Eagle | eagle | *.sch |
| Easybuild | easybuild | *.eb |
| Ecere Projects | ecere-projects | *.epj |
| EditorConfig | editorconfig, editor-config | .editorconfig |
| Edje Data Collection | edje-data-collection | *.edc |
| Eiffel | eiffel | *.e |
| Elixir | elixir | *.ex, mix.lock |
| Elm | elm | *.elm |
| Emacs Lisp | emacs-lisp, elisp, emacs | *.el, .abbrev_defs |
| EmberScript | emberscript | *.em |
| Erlang | erlang | *.erl, Emakefile |
| F# | f#, fsharp | *.fs |
| F* | f*, fstar | *.fst |
| FIGlet Font | figlet-font, FIGfont | *.flf |
| FLUX | flux | *.fx |
| Factor | factor | *.factor, .factor-boot-rc |
| Fancy | fancy | *.fy, Fakefile |
| Fantom | fantom | *.fan |
| Faust | faust | *.dsp |
| Filebench WML | filebench-wml | *.f |
| Filterscript | filterscript | *.fs |
| Formatted | formatted | *.for |
| Forth | forth | *.fth |
| Fortran | fortran | *.f |
| Fortran Free Form | fortran-free-form | *.f90 |
| FreeMarker | freemarker, ftl | *.ftl |
| Frege | frege | *.fr |
| Futhark | futhark | *.fut |
| G-code | g-code | *.g |
| GAML | gaml | *.gaml |
| GAMS | gams | *.gms |
| GAP | gap | *.g |
| GCC Machine Description | gcc-machine-description | *.md |
| GDB | gdb | *.gdb |
| GDScript | gdscript | *.gd |
| GEDCOM | gedcom | *.ged |
| GLSL | glsl | *.glsl |
| GN | gn | *.gn, .gn |
| Game Maker Language | game-maker-language | *.gml |
| Genie | genie | *.gs |
| Genshi | genshi, xml+genshi, xml+kid | *.kid |
| Gentoo Ebuild | gentoo-ebuild | *.ebuild |
| Gentoo Eclass | gentoo-eclass | *.eclass |
| Gerber Image | gerber-image, rs-274x | *.gbr |
| Gettext Catalog | gettext-catalog, pot | *.po |
| Gherkin | gherkin, cucumber | *.feature |
| Git Attributes | git-attributes, gitattributes | .gitattributes |
| Git Config | git-config, gitconfig, gitmodules | *.gitconfig, .gitconfig |
| Glyph | glyph | *.glf |
| Glyph Bitmap Distribution Format | glyph-bitmap-distribution-format | *.bdf |
| Gnuplot | gnuplot | *.gp |
| Go | go, golang | *.go |
| Golo | golo | *.golo |
| Gosu | gosu | *.gs |
| Grace | grace | *.grace |
| Gradle | gradle | *.gradle |
| Grammatical Framework | grammatical-framework, gf | *.gf |
| Graph Modeling Language | graph-modeling-language | *.gml |
| GraphQL | graphql | *.graphql |
| Graphviz (DOT) | dot | *.dot |
| Groovy | groovy | *.groovy, Jenkinsfile |
| Groovy Server Pages | groovy-server-pages, gsp | *.gsp |
| HAProxy | haproxy | *.cfg, haproxy.cfg |
| HCL | hcl, terraform | *.hcl |
| HLSL | hlsl | *.hlsl |
| HTML | html, xhtml | *.html |
| HTML+Django | html+django, django, html+jinja, htmldjango | *.jinja |
| HTML+ECR | html+ecr, ecr | *.ecr |
| HTML+EEX | html+eex, eex | *.eex |
| HTML+ERB | html+erb, erb | *.erb |
| HTML+PHP | html+php | *.phtml |
| HTML+Razor | html+razor, razor | *.cshtml |
| HTTP | http | *.http |
| HXML | hxml | *.hxml |
| Hack | hack | *.hack |
| Haml | haml | *.haml |
| Handlebars | handlebars, hbs, htmlbars | *.handlebars |
| Harbour | harbour | *.hb |
| Haskell | haskell | *.hs |
| Haxe | haxe | *.hx |
| HiveQL | hiveql | *.q |
| HolyC | holyc | *.hc |
| Hy | hy, hylang | *.hy |
| HyPhy | hyphy | *.bf |
| IDL | idl | *.pro |
| IGOR Pro | igor-pro, igor, igorpro | *.ipf |
| INI | ini, dosini | *.ini, buildozer.spec |
| IRC log | irc-log, irc | *.irclog |
| Idris | idris | *.idr |
| Ignore List | ignore-list, ignore, gitignore, git-ignore | *.gitignore, .atomignore |
| Inform 7 | inform-7, i7, inform7 | *.ni |
| Inno Setup | inno-setup | *.iss |
| Io | io | *.io |
| Ioke | ioke | *.ik |
| Isabelle | isabelle | *.thy |
| Isabelle ROOT | isabelle-root | ROOT |
| J | j | *.ijs |
| JFlex | jflex | *.flex |
| JSON | json | *.json, .arcconfig |
| JSON with Comments | json-with-comments, jsonc | *.jsonc, .babelrc |
| JSON5 | json5 | *.json5 |
| JSONLD | jsonld | *.jsonld |
| JSONiq | jsoniq | *.jq |
| JSX | jsx | *.jsx |
| Jasmin | jasmin | *.j |
| Java | java | *.java |
| Java Properties | java-properties | *.properties |
| Java Server Pages | java-server-pages, jsp | *.jsp |
| JavaScript | javascript, js, node | *.js, Jakefile |
| JavaScript+ERB | javascript+erb | *.js.erb |
| Jison | jison | *.jison |
| Jison Lex | jison-lex | *.jisonlex |
| Jolie | jolie | *.ol |
| Jsonnet | jsonnet | *.jsonnet |
| Julia | julia | *.jl |
| Jupyter Notebook | jupyter-notebook | *.ipynb, Notebook |
| KRL | krl | *.krl |
| KiCad Layout | kicad-layout, pcbnew | *.kicad_pcb, fp-lib-table |
| KiCad Legacy Layout | kicad-legacy-layout | *.brd |
| KiCad Schematic | kicad-schematic | *.sch |
| Kit | kit | *.kit |
| Kotlin | kotlin | *.kt |
| LFE | lfe | *.lfe |
| LLVM | llvm | *.ll |
| LOLCODE | lolcode | *.lol |
| LSL | lsl | *.lsl |
| LTspice Symbol | ltspice-symbol | *.asy |
| LabVIEW | labview | *.lvproj |
| Lasso | lasso, lassoscript | *.lasso |
| Latte | latte | *.latte |
| Lean | lean | *.lean |
| Less | less | *.less |
| Lex | lex, flex | *.l |
| LilyPond | lilypond | *.ly |
| Limbo | limbo | *.b |
| Linker Script | linker-script | *.ld, ld.script |
| Linux Kernel Module | linux-kernel-module | *.mod |
| Liquid | liquid | *.liquid |
| Literate Agda | literate-agda | *.lagda |
| Literate CoffeeScript | literate-coffeescript, litcoffee | *.litcoffee |
| Literate Haskell | literate-haskell, lhaskell, lhs | *.lhs |
| LiveScript | livescript, live-script, ls | *.ls, Slakefile |
| Logos | logos | *.xm |
| Logtalk | logtalk | *.lgt |
| LookML | lookml | *.lookml |
| LoomScript | loomscript | *.ls |
| Lua | lua | *.lua, .luacheckrc |
| M | m, mumps | *.mumps |
| M4 | m4 | *.m4 |
| M4Sugar | m4sugar, autoconf | *.m4, configure.ac |
| MATLAB | matlab, octave | *.matlab |
| MAXScript | maxscript | *.ms |
| MLIR | mlir | *.mlir |
| MQL4 | mql4 | *.mq4 |
| MQL5 | mql5 | *.mq5 |
| MTML | mtml | *.mtml |
| MUF | muf | *.muf |
| Macaulay2 | macaulay2, m2 | *.m2 |
| Makefile | makefile, bsdmake, make, mf | *.mak, BSDmakefile |
| Mako | mako | *.mako |
| Markdown | markdown, pandoc | *.md, contents.lr |
| Marko | marko, markojs | *.marko |
| Mask | mask | *.mask |
| Mathematica | mathematica, mma | *.mathematica |
| Maven POM | maven-pom | pom.xml |
| Max | max, max/msp, maxmsp | *.maxpat |
| MediaWiki | mediawiki | *.mediawiki |
| Mercury | mercury | *.m |
| Meson | meson | meson.build |
| Metal | metal | *.metal |
| Microsoft Developer Studio Project | microsoft-developer-studio-project | *.dsp |
| MiniD | minid | *.minid |
| Mirah | mirah | *.druby |
| Modelica | modelica | *.mo |
| Modula-2 | modula-2 | *.mod |
| Modula-3 | modula-3 | *.i3 |
| Module Management System | module-management-system | *.mms, descrip.mmk |
| Monkey | monkey | *.monkey |
| Moocode | moocode | *.moo |
| MoonScript | moonscript | *.moon |
| Motorola 68K Assembly | motorola-68k-assembly, m68k | *.asm |
| Muse | muse, amusewiki | *.muse |
| Myghty | myghty | *.myt |
| NASL | nasl | *.nasl |
| NCL | ncl | *.ncl |
| NEON | neon, ne-on | *.neon |
| NL | nl | *.nl |
| NPM Config | npm-config, npmrc | .npmrc |
| NSIS | nsis | *.nsi |
| Nearley | nearley | *.ne |
| Nemerle | nemerle | *.n |
| NetLinx | netlinx | *.axs |
| NetLinx+ERB | netlinx+erb | *.axs.erb |
| NetLogo | netlogo | *.nlogo |
| NewLisp | newlisp | *.nl |
| Nextflow | nextflow | *.nf, nextflow.config |
| Nginx | nginx | *.nginxconf, nginx.conf |
| Nim | nim | *.nim, nim.cfg |
| Ninja | ninja | *.ninja |
| Nit | nit | *.nit |
| Nix | nix, nixos | *.nix |
| Nu | nu, nush | *.nu, Nukefile |
| NumPy | numpy | *.numpy |
| OCaml | ocaml | *.ml |
| ObjDump | objdump | *.objdump |
| Object Data Instance Notation | object-data-instance-notation | *.odin |
| ObjectScript | objectscript | *.cls |
| Objective-C | objective-c, obj-c, objc, objectivec | *.m |
| Objective-C++ | objective-c++, obj-c++, objc++, objectivec++ | *.mm |
| Objective-J | objective-j, obj-j, objectivej, objj | *.j |
| Odin | odin, odinlang, odin-lang | *.odin |
| Omgrofl | omgrofl | *.omgrofl |
| Opa | opa | *.opa |
| Opal | opal | *.opal |
| Open Policy Agent | open-policy-agent | *.rego |
| OpenCL | opencl | *.cl |
| OpenEdge ABL | openedge-abl, progress, openedge, abl | *.p |
| OpenQASM | openqasm | *.qasm |
| OpenRC runscript | openrc-runscript, openrc | |
| OpenSCAD | openscad | *.scad |
| OpenStep Property List | openstep-property-list | *.plist |
| OpenType Feature File | opentype-feature-file, AFDKO | *.fea |
| Org | org | *.org |
| Ox | ox | *.ox |
| Oxygene | oxygene | *.oxygene |
| Oz | oz | *.oz |
| P4 | p4 | *.p4 |
| PHP | php, inc | *.php, .php |
| PLSQL | plsql | *.pls |
| PLpgSQL | plpgsql | *.pgsql |
| POV-Ray SDL | pov-ray-sdl, pov-ray, povray | *.pov |
| Pan | pan | *.pan |
| Papyrus | papyrus | *.psc |
| Parrot | parrot | *.parrot |
| Parrot Assembly | parrot-assembly, pasm | *.pasm |
| Parrot Internal Representation | parrot-internal-representation, pir | *.pir |
| Pascal | pascal | *.pas |
| Pawn | pawn | *.pwn |
| Pep8 | pep8 | *.pep |
| Perl | perl, cperl | *.pl, Makefile.PL |
| Pic | pic | *.pic |
| Pickle | pickle | *.pkl |
| PicoLisp | picolisp | *.l |
| PigLatin | piglatin | *.pig |
| Pike | pike | *.pike |
| PlantUML | plantuml | *.puml |
| Pod | pod | *.pod |
| Pod 6 | pod-6 | *.pod |
| PogoScript | pogoscript | *.pogo |
| Pony | pony | *.pony |
| PostCSS | postcss | *.pcss |
| PostScript | postscript, postscr | *.ps |
| PowerBuilder | powerbuilder | *.pbt |
| PowerShell | powershell, posh, pwsh | *.ps1 |
| Prisma | prisma | *.prisma |
| Processing | processing | *.pde |
| Proguard | proguard | *.pro |
| Prolog | prolog | *.pl |
| Propeller Spin | propeller-spin | *.spin |
| Protocol Buffer | protocol-buffer, protobuf | *.proto |
| Public Key | public-key | *.asc |
| Pug | pug | *.jade |
| Puppet | puppet | *.pp, Modulefile |
| Pure Data | pure-data | *.pd |
| PureBasic | purebasic | *.pb |
| PureScript | purescript | *.purs |
| Python | python, python3, rusthon | *.py, .gclient |
| Python console | python-console, pycon | |
| Python traceback | python-traceback | *.pytb |
| QML | qml | *.qml |
| QMake | qmake | *.pro |
| Quake | quake | m3makefile |
| R | r, R, Rscript, splus | *.r, .Rprofile |
| RAML | raml | *.raml |
| RDoc | rdoc | *.rdoc |
| REALbasic | realbasic | *.rbbas |
| REXX | rexx, arexx | *.rexx |
| RHTML | rhtml, html+ruby | *.rhtml |
| RMarkdown | rmarkdown | *.rmd |
| RPC | rpc, rpcgen, oncrpc, xdr | *.x |
| RPM Spec | rpm-spec, specfile | *.spec |
| RUNOFF | runoff | *.rnh |
| Racket | racket | *.rkt |
| Ragel | ragel, ragel-rb, ragel-ruby | *.rl |
| Raku | raku, perl6, perl-6 | *.6pl |
| Rascal | rascal | *.rsc |
| Raw token data | raw-token-data, raw | *.raw |
| Readline Config | readline-config, inputrc, readline | .inputrc |
| Reason | reason | *.re |
| Rebol | rebol | *.reb |
| Red | red, red/system | *.red |
| Redcode | redcode | *.cw |
| Regular Expression | regular-expression, regexp, regex | *.regexp |
| Ren’Py | ren’py, renpy | *.rpy |
| RenderScript | renderscript | *.rs |
| Rich Text Format | rich-text-format | *.rtf |
| Ring | ring | *.ring |
| Riot | riot | *.riot |
| RobotFramework | robotframework | *.robot |
| Roff | roff, groff, mdoc, nroff, troff | *.roff, eqnrc |
| Roff Manpage | roff-manpage | *.1 |
| Rouge | rouge | *.rg |
| Ruby | ruby, jruby, macruby, rake, rb, rbx | *.rb, .irbrc |
| Rust | rust | *.rs |
| SAS | sas | *.sas |
| SCSS | scss | *.scss |
| SMT | smt | *.smt2 |
| SPARQL | sparql | *.sparql |
| SQF | sqf | *.sqf |
| SQL | sql | *.sql |
| SQLPL | sqlpl | *.sql |
| SRecode Template | srecode-template | *.srt |
| SSH Config | ssh-config | ssh-config |
| STON | ston | *.ston |
| SVG | svg | *.svg |
| SWIG | swig | *.i |
| Sage | sage | *.sage |
| SaltStack | saltstack, saltstate, salt | *.sls |
| Sass | sass | *.sass |
| Scala | scala | *.scala |
| Scaml | scaml | *.scaml |
| Scheme | scheme | *.scm |
| Scilab | scilab | *.sci |
| Self | self | *.self |
| ShaderLab | shaderlab | *.shader |
| Shell | shell, sh, shell-script, bash, zsh | *.sh, .bash_aliases |
| ShellSession | shellsession, console | *.sh-session |
| Shen | shen | *.shen |
| Sieve | sieve | *.sieve |
| Slash | slash | *.sl |
| Slice | slice | *.ice |
| Slim | slim | *.slim |
| SmPL | smpl, coccinelle | *.cocci |
| Smali | smali | *.smali |
| Smalltalk | smalltalk, squeak | *.st |
| Smarty | smarty | *.tpl |
| Solidity | solidity | |
| SourcePawn | sourcepawn, sourcemod | *.sp |
| Spline Font Database | spline-font-database | *.sfd |
| Squirrel | squirrel | *.nut |
| Stan | stan | *.stan |
| Standard ML | standard-ml, sml | *.ML |
| Starlark | starlark, bazel, bzl | *.bzl, BUCK |
| Stata | stata | *.do |
| Stylus | stylus | *.styl |
| SubRip Text | subrip-text | *.srt |
| SugarSS | sugarss | *.sss |
| SuperCollider | supercollider | *.sc |
| Svelte | svelte | *.svelte |
| Swift | swift | *.swift |
| SystemVerilog | systemverilog | *.sv |
| TI Program | ti-program | *.8xp |
| TLA | tla | *.tla |
| TOML | toml | *.toml, Cargo.lock |
| TSQL | tsql | *.sql |
| TSX | tsx | *.tsx |
| TXL | txl | *.txl |
| Tcl | tcl | *.tcl, owh |
| Tcsh | tcsh | *.tcsh |
| TeX | tex, latex | *.tex |
| Tea | tea | *.tea |
| Terra | terra | *.t |
| Texinfo | texinfo | *.texinfo |
| Text | text, fundamental | *.txt, COPYING |
| Textile | textile | *.textile |
| Thrift | thrift | *.thrift |
| Turing | turing | *.t |
| Turtle | turtle | *.ttl |
| Twig | twig | *.twig |
| Type Language | type-language, tl | *.tl |
| TypeScript | typescript, ts | *.ts |
| Unified Parallel C | unified-parallel-c | *.upc |
| Unity3D Asset | unity3d-asset | *.anim |
| Unix Assembly | unix-assembly | *.s |
| Uno | uno | *.uno |
| UnrealScript | unrealscript | *.uc |
| UrWeb | urweb, Ur/Web, Ur | *.ur |
| V | v, vlang | *.v |
| VBA | vba, vb6 | *.bas |
| VBScript | vbscript | *.vbs |
| VCL | vcl | *.vcl |
| VHDL | vhdl | *.vhdl |
| Vala | vala | *.vala |
| Verilog | verilog | *.v |
| Vim Snippet | vim-snippet, SnipMate, UltiSnip, NeoSnippet | *.snip |
| Vim script | vim-script, vim, viml, nvim | *.vim, .gvimrc |
| Visual Basic .NET | vbnet, vb.net | *.vb |
| Volt | volt | *.volt |
| Vue | vue | *.vue |
| Wavefront Material | wavefront-material | *.mtl |
| Wavefront Object | wavefront-object | *.obj |
| Web Ontology Language | web-ontology-language | *.owl |
| WebAssembly | webassembly, wast, wasm | *.wast |
| WebIDL | webidl | *.webidl |
| WebVTT | webvtt | *.vtt |
| Wget Config | wget-config, wgetrc | .wgetrc |
| Windows Registry Entries | windows-registry-entries | *.reg |
| Wollok | wollok | *.wlk |
| World of Warcraft Addon Data | world-of-warcraft-addon-data | *.toc |
| X BitMap | x-bitmap, xbm | *.xbm |
| X Font Directory Index | x-font-directory-index | encodings.dir |
| X PixMap | x-pixmap, xpm | *.xpm |
| X10 | x10, xten | *.x10 |
| XC | xc | *.xc |
| XCompose | xcompose | .XCompose |
| XML | xml, rss, xsd, wsdl | *.xml, .classpath |
| XML Property List | xml-property-list | *.plist |
| XPages | xpages | *.xsp-config |
| XProc | xproc | *.xpl |
| XQuery | xquery | *.xquery |
| XS | xs | *.xs |
| XSLT | xslt, xsl | *.xslt |
| Xojo | xojo | *.xojo_code |
| Xtend | xtend | *.xtend |
| YAML | yaml, yml | *.yml, .clang-format |
| YANG | yang | *.yang |
| YARA | yara | *.yar |
| YASnippet | yasnippet, snippet, yas | *.yasnippet |
| Yacc | yacc | *.y |
| ZAP | zap | *.zap |
| ZIL | zil | *.zil |
| Zeek | zeek, bro | *.zeek |
| ZenScript | zenscript | *.zs |
| Zephir | zephir | *.zep |
| Zig | zig | *.zig |
| Zimpl | zimpl | *.zimpl |
| cURL Config | curl-config, curlrc | .curlrc |
| desktop | desktop | *.desktop |
| dircolors | dircolors | *.dircolors, .dir_colors |
| eC | ec | *.ec |
| edn | edn | *.edn |
| fish | fish | *.fish |
| mIRC Script | mirc-script | *.mrc |
| mcfunction | mcfunction | *.mcfunction |
| mupad | mupad | *.mu |
| nanorc | nanorc | *.nanorc, .nanorc |
| nesC | nesc | *.nc |
| ooc | ooc | *.ooc |
| q | q | *.q |
| reStructuredText | restructuredtext, rst | *.rst |
| sed | sed | *.sed |
| wdl | wdl | *.wdl |
| wisp | wisp | *.wisp |
| xBase | xbase, advpl, clipper, foxpro | *.prg |
此表转自：Markdown 代码块编程语言清单
分隔线语法
有时你可能想要一条分割线来为你的文章划成不同部分，此时，你可以通过另起一行，并且这一行只输入三个星号
就像这样：
***
那么它呈现出来的效果应该是这样的：
列表语法
列表分为有序列表和无序列表，它可以将你的内容分成一条一条的，比如此时你想写几条规定，那么列表就是一个不错的选择，或者你想举几个例子，这时可以通过引用和列表
它们的语法如下：
1.有序列表
以数字1和句号（.）开头，再输入一个空格，然后输入内容，再依次递增，就像这样：
- 这是有序列表示例一行
- 这是有序列表示例二行
- 这是有序列表示例三行
你会发现它和正常段落的缩进的格式不一样
2.无序列表
使用加号（+）开头，再输入一个空格，然后输入内容，就像这样：
- 这是无序列表示例一行
- 这是无序列表示例二行
- 这是无序列表示例三行
你会发现无序列表的缩进也与正常段落的不同，而有序和无序之间的区别就是前面有没有数字序号，可以根据实际情况灵活选用一种
表格语法
聊完列表，再来说明一下另外一种常用的可选结构——表格
表格的用途有很多，你可以拿它来放很多东西，在Markdown中，表格的语法是这样的：
使用三个或更多减号（--）创建每列的标题，并使用管道符（|）分隔每列，此外，你可以给减号两侧添加冒号（:）来实现不同的文字对齐效果，就像这样
| 第一天 | 第二天 | 第三天 |
| :--- | :----: | ---: |
| 开心 | 愤怒 | 难过 |
| 不开心 | 不愤怒 | 不难过 |
它实现出来的效果是这样的：
| 第一天 | 第二天 | 第三天 |
|---|---|---|
| 开心 | 愤怒 | 难过 |
| 不开心 | 不愤怒 | 不难过 |
链接及注释语法
在写文章时可能需要给出一个跳转到其他网页的链接，或者有些词语你认为对读者来说有必要解释一下，也需要给它添加脚注、注释，就像通常的纸质书所做的那样，根据编号在页面下方查看相应的解释，这两种我认为从本质上都是链接，一个是页面外部跳转，一个是页面内部跳转而已。
它们的语法规则是这样的：
1.链接语法：
将链接文本放在中括号（[]）内，链接地址放在后面的括号（()）中。
就像这样：[这是一个链接示例](www.baidu.com)
它呈现的效果是这样的：这是一个链接示例
此时你点击这个链接示例，你的浏览器应该会跳转到百度
2.脚注语法：
在文章中添加脚注编号，只需要使用方括号（[]），在其中输入一个插入符号（^）和序号（一般是数字）即可，就像这样：[^1]
对于这个序号指向的具体内容，你需要使用对应的脚注编号，然后使用冒号（:），在后面输入对应的解释文本，就像这样：[^1]:这是一条脚注示例
它的呈现效果应该是这样的：
这是一段用于展示脚注语法1的示例
此时你将鼠标移动到1上时，可以看到对应的内容，点击1也可以跳转到脚注位置，一般解释都放在末尾
图片语法
对于一些简单的内容，单文本可能更易阅读，对于一些抽象或者复杂的内容来说，有时添加一张图片配合解释，也许会更容易让人看懂。
Markdown中，插入图片的语法是这样的：
先输入感叹号（!），再输入方括号（[]），方括号中填写当图片无法正常加载时显示的信息，一般是图片内容，最后输入括号（()），括号中输入图片的链接地址，就像这样
\
那么它呈现的效果，和这篇文章的头图效果是一样的
转义字符语法
我们发现Markdown主要是通过使用一些符号来给文字加上样式，那如果想显示那些语法中用到的符号该怎么办呢？此时就用到了转义字符。
只需要在你想显示的符号前面加上一个反斜杠符号（\）即可，加上这个反斜杠，原本会实现相应功能的符号，就会变成只显示那个符号样子。
总结
以上就是我认为Markdown中常用的知识点，希望能对你使用它写文章有所帮助。在我写这篇简单的Markdown教程时也熟悉了它的用法，可谓是一举两得，以上这些语法中使用的符号都应该使用英文半角符号，而不是中文全角符号，这样可以最大程度上避免出错。
参考资料
- Markdown官方教程：https://markdown.com.cn/
- Markdown指南中文版：https://www.markdown.xyz/
- Markdown Guide：https://www.markdownguide.org/
- 脚注语法就是这么神奇 ↩
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用。你还可以使用@来通知其他用户。