Markdown常用语法

使用 <kbd>Ctrl</kbd>+<kbd>Alt</kbd>+<kbd>Del</kbd> 重启电脑

使用 Ctrl+Alt+Del 重启电脑

<kbd>元素

• 说明：用于表示用户输入的键盘文本，通常以等宽字体显示，以与普通文本区分开来。
• 示例

<p>请按下<kbd>Ctrl</kbd>+<kbd>C</kbd>来复制文本。</p>

<b>元素

• 说明：使文本加粗显示，用于对文本进行强调，但不具有明确的语义含义，只是一种视觉上的突出。
• 示例

<p>这是一段<b>重要的</b>通知，请大家仔细阅读。</p>

<i>元素

• 说明：将文本以斜体显示，通常用于表示一些特殊的文本，如外来语、技术术语、内心想法等，但也没有明确的语义。
• 示例

<p>在数学中，<i>i</i>通常表示虚数单位。</p>

<em>元素

• 说明：用于强调文本内容，在浏览器中通常以斜体显示。它具有语义上的强调作用，会改变句子的含义。
• 示例

收起

html

<p>你<em>必须</em>在今天完成这项任务。</p>

<sup>元素

• 说明：将文本设置为上标，通常用于表示指数、脚注编号等。
• 示例

<p>水的化学式是H<sub>2</sub>O，其中2是下标。</p>

<sub>元素

• 说明：将文本设置为下标，常用于化学公式、数学公式等场景。
• 示例

<p>在数学中，x的平方可以写成x<sup>2</sup>。</p>

<br>元素

• 说明：用于在 HTML 中强制换行，是一个空元素，不需要闭合标签。
• 示例

<p>这是第一行。<br>这是第二行。</p>

2.转义

Markdown 使用了很多特殊符号来表示特定的意义，如果需要显示特定的符号则需要使用转义字符，Markdown 使用反斜杠转义特殊字符。

**文本加粗** 
\*\* 正常显示星号 \*\*

文本加粗
** 正常显示星号 **
Markdown 支持以下这些符号前面加上反斜杠来帮助插入普通的符号:

\   反斜线
`   反引号
*   星号
_   下划线
{}  花括号
[]  方括号
()  小括号
#   井字号
+   加号
-   减号
.   英文句点
!   感叹号

3.公式

Markdown Preview Enhanced 使用 KaTeX 或者 MathJax 来渲染数学表达式。

KaTeX 拥有比 MathJax 更快的性能，但是它却少了很多 MathJax 拥有的特性。你可以查看 KaTeX supported functions/symbols 来了解 KaTeX 支持那些符号和函数。

默认下的分隔符：

• $…$ 或者 (…) 中的数学表达式将会在行内显示。
• $......$ 或者 […] 或者 ```math 中的数学表达式将会在块内显示。

$$
\begin{Bmatrix}
   a & b \\
   c & d
\end{Bmatrix}
$$
$$
\begin{CD}
   A @>a>> B \\
@VbVV @AAcA \\
   C @= D
\end{CD}
$$

{����}{acbd}
�→���↓↑��=�Ab↓⏐CaB⏐↑cD

Markdown表情

示例：

> :sunny: 晴天 :cloud: 阴天

:sunny: 晴天 :cloud: 阴天

  :smile:      :laughing:
  :blush:      :smiley:    ☺️ :relaxed:
  :smirk:      :heart_eyes:      :kissing_heart:
  :kissing_closed_eyes:      :flushed:      :relieved:
  :satisfied:      :grin:      :wink:
  :stuck_out_tongue_winking_eye:      :stuck_out_tongue_closed_eyes:      :grinning:
  :kissing:      :kissing_smiling_eyes:      :stuck_out_tongue:
  :sleeping:      :worried:      :frowning:
  :anguished:      :open_mouth:      :grimacing:
  :confused:      :hushed:      :expressionless:
  :unamused:      :sweat_smile:      :sweat:
  :disappointed_relieved:      :weary:      :pensive:
  :disappointed:      :confounded:      :fearful:
  :cold_sweat:      :persevere:      :cry:
  :sob:      :joy:      :astonished:
  :scream:    :neckbeard: :neckbeard:      :tired_face:
  :angry:      :rage:      :triumph:
  :sleepy:      :yum:      :mask:
  :sunglasses:      :dizzy_face:      :imp:
  :smiling_imp:      :neutral_face:      :no_mouth:
  :innocent:      :alien:      :yellow_heart:
  :blue_heart:      :purple_heart:    ❤️ :heart:
  :green_heart:      :broken_heart:      :heartbeat:
  :heartpulse:      :two_hearts:      :revolving_hearts:
  :cupid:      :sparkling_heart:    ✨ :sparkles:
⭐ :star:      :star2:      :dizzy:
  :boom:      :collision:      :anger:
❗ :exclamation:    ❓ :question:    ❕ :grey_exclamation:
❔ :grey_question:      :zzz:      :dash:
  :sweat_drops:      :notes:      :musical_note:
  :fire:      :hankey:      :poop:
  :shit:      :+1:      :thumbsup:
  :-1:      :thumbsdown:      :ok_hand:
  :punch:      :facepunch:    ✊ :fist:
✌️ :v:      :wave:    ✋ :hand:
✋ :raised_hand:      :open_hands:    ☝️ :point_up:
  :point_down:      :point_left:      :point_right:
  :raised_hands:      :pray:      :point_up_2:
  :clap:      :muscle:      :metal:
  :fu:      :walking:      :runner:
  :running:      :couple:      :family:  :two_men_holding_hands:    
  :two_women_holding_hands:    
  :dancer:  :dancers:     ‍♀️ :ok_woman:      :no_good:
  :information_desk_person:      :raising_hand:     ‍♀️ :bride_with_veil:
:person_with_pouting_face: :person_with_pouting_face:    :person_frowning: :person_frowning:      :bow:
  :couplekiss:      :couple_with_heart:      :massage:
  :haircut:      :nail_care:      :boy:
  :girl:      :woman:      :man:
  :baby:      :older_woman:      :older_man:
  :man_with_gua_pi_mao:     ‍♂️ :man_with_turban:
  :construction_worker:      :cop:      :angel:
  :princess:      :smiley_cat:      :smile_cat:
  :heart_eyes_cat:      :kissing_cat:      :smirk_cat:
  :scream_cat:      :crying_cat_face:      :joy_cat:
  :pouting_cat:      :japanese_ogre:      :japanese_goblin:
  :see_no_evil:      :hear_no_evil:      :speak_no_evil:
 ‍♂️ :guardsman:      :skull:      :feet:
  :lips:      :kiss:      :droplet:
  :ear:      :eyes:      :nose:
  :tongue:      :love_letter:      :bust_in_silhouette:
  :busts_in_silhouette:      :speech_balloon:      :thought_balloon:
☀️ :sunny:    ☔ :umbrella:    ☁️ :cloud:
❄️ :snowflake:    ⛄ :snowman:    ⚡ :zap:
  :cyclone:      :foggy:      :ocean:
  :cat:      :dog:      :mouse:
  :hamster:      :rabbit:      :wolf:
  :frog:      :tiger:      :koala:
  :bear:      :pig:      :pig_nose:
  :cow:      :boar:      :monkey_face:
  :monkey:      :horse:      :racehorse:
  :camel:      :sheep:      :elephant:
  :panda_face:      :snake:      :bird:
  :baby_chick:      :hatched_chick:      :hatching_chick:
  :chicken:      :penguin:      :turtle:
  :bug:      :honeybee:      :ant:
  :beetle:      :snail:      :octopus:
  :tropical_fish:      :fish:      :whale:
  :whale2:      :dolphin:      :cow2:
  :ram:      :rat:      :water_buffalo:
  :tiger2:      :rabbit2:      :dragon:
  :goat:      :rooster:      :dog2:
  :pig2:      :mouse2:      :ox:
  :dragon_face:      :blowfish:      :crocodile:
  :dromedary_camel:      :leopard:      :cat2:
  :poodle:      :paw_prints:      :bouquet:
  :cherry_blossom:      :tulip:      :four_leaf_clover:
  :rose:      :sunflower:      :hibiscus:
  :maple_leaf:      :leaves:      :fallen_leaf:
  :herb:      :mushroom:      :cactus:
  :palm_tree:      :evergreen_tree:      :deciduous_tree:
  :chestnut:      :seedling:      :blossom:
  :ear_of_rice:      :shell:      :globe_with_meridians:
  :sun_with_face:      :full_moon_with_face:      :new_moon_with_face:
  :new_moon:      :waxing_crescent_moon:      :first_quarter_moon:
  :waxing_gibbous_moon:      :full_moon:      :waning_gibbous_moon:
  :last_quarter_moon:      :waning_crescent_moon:      :last_quarter_moon_with_face:
  :first_quarter_moon_with_face:      :moon:      :earth_africa:
  :earth_americas:      :earth_asia:      :volcano:
  :milky_way:    ⛅ :partly_sunny:    :octocat: :octocat:

  :bamboo:      :gift_heart:      :dolls:
  :school_satchel:      :mortar_board:      :flags:
  :fireworks:      :sparkler:      :wind_chime:
  :rice_scene:      :jack_o_lantern:      :ghost:
  :santa:      :christmas_tree:      :gift:
  :bell:      :no_bell:      :tanabata_tree:
  :tada:      :confetti_ball:      :balloon:
  :crystal_ball:      :cd:      :dvd:
  :floppy_disk:      :camera:      :video_camera:
  :movie_camera:      :computer:      :tv:
  :iphone:    ☎️ :phone:    ☎️ :telephone:
  :telephone_receiver:      :pager:      :fax:
  :minidisc:      :vhs:      :sound:
  :speaker:      :mute:      :loudspeaker:
  :mega:    ⌛ :hourglass:    ⏳ :hourglass_flowing_sand:
⏰ :alarm_clock:    ⌚ :watch:      :radio:
  :satellite:    ➿ :loop:      :mag:
  :mag_right:      :unlock:      :lock:
  :lock_with_ink_pen:      :closed_lock_with_key:      :key:
  :bulb:      :flashlight:      :high_brightness:
  :low_brightness:      :electric_plug:      :battery:
  :calling:      :email:      :mailbox:
  :postbox:      :bath:      :bathtub:
  :shower:      :toilet:      :wrench:
  :nut_and_bolt:      :hammer:      :seat:
  :moneybag:      :yen:      :dollar:
  :pound:      :euro:      :credit_card:
  :money_with_wings:      :e-mail:      :inbox_tray:
  :outbox_tray:    ✉️ :envelope:      :incoming_envelope:
  :postal_horn:      :mailbox_closed:      :mailbox_with_mail:
  :mailbox_with_no_mail:      :door:      :smoking:
  :bomb:      :gun:      :hocho:
  :pill:      :syringe:      :page_facing_up:
  :page_with_curl:      :bookmark_tabs:      :bar_chart:
  :chart_with_upwards_trend:      :chart_with_downwards_trend:      :scroll:
  :clipboard:      :calendar:      :date:
  :card_index:      :file_folder:      :open_file_folder:
✂️ :scissors:      :pushpin:      :paperclip:
✒️ :black_nib:    ✏️ :pencil2:      :straight_ruler:
  :triangular_ruler:      :closed_book:      :green_book:
  :blue_book:      :orange_book:      :notebook:
  :notebook_with_decorative_cover:      :ledger:      :books:
  :bookmark:      :name_badge:      :microscope:
  :telescope:      :newspaper:      :football:
  :basketball:    ⚽ :soccer:    ⚾ :baseball:
  :tennis:      :8ball:      :rugby_football:
  :bowling:    ⛳ :golf:      :mountain_bicyclist:
  :bicyclist:      :horse_racing:      :snowboarder:
  :swimmer:      :surfer:      :ski:
♠️ :spades:    ♥️ :hearts:    ♣️ :clubs:
♦️ :diamonds:      :gem:      :ring:
  :trophy:      :musical_score:      :musical_keyboard:
  :violin:      :space_invader:      :video_game:
  :black_joker:      :flower_playing_cards:      :game_die:
  :dart:      :mahjong:      :clapper:
  :memo:      :pencil:      :book:
  :art:      :microphone:      :headphones:
  :trumpet:      :saxophone:      :guitar:
  :shoe:      :sandal:      :high_heel:
  :lipstick:      :boot:      :shirt:
  :tshirt:      :necktie:      :womans_clothes:
  :dress:      :running_shirt_with_sash:      :jeans:
  :kimono:      :bikini:      :ribbon:
  :tophat:      :crown:      :womans_hat:
  :mans_shoe:      :closed_umbrella:      :briefcase:
  :handbag:      :pouch:      :purse:
  :eyeglasses:      :fishing_pole_and_fish:    ☕ :coffee:
  :tea:      :sake:      :baby_bottle:
  :beer:      :beers:      :cocktail:
  :tropical_drink:      :wine_glass:      :fork_and_knife:
  :pizza:      :hamburger:      :fries:
  :poultry_leg:      :meat_on_bone:      :spaghetti:
  :curry:      :fried_shrimp:      :bento:
  :sushi:      :fish_cake:      :rice_ball:
  :rice_cracker:      :rice:      :ramen:
  :stew:      :oden:      :dango:
  :egg:      :bread:      :doughnut:
  :custard:      :icecream:      :ice_cream:
  :shaved_ice:      :birthday:      :cake:
  :cookie:      :chocolate_bar:      :candy:
  :lollipop:      :honey_pot:      :apple:
  :green_apple:      :tangerine:      :lemon:
  :cherries:      :grapes:      :watermelon:
  :strawberry:      :peach:      :melon:
  :banana:      :pear:      :pineapple:
  :sweet_potato:      :eggplant:      :tomato:
  :corn:    

1️⃣ :one:    2️⃣ :two:    3️⃣ :three:
4️⃣ :four:    5️⃣ :five:    6️⃣ :six:
7️⃣ :seven:    8️⃣ :eight:    9️⃣ :nine:
  :keycap_ten:      :1234:    0️⃣ :zero:<br/>#️⃣ :hash:      :symbols:    ◀️ :arrow_backward:
⬇️ :arrow_down:    ▶️ :arrow_forward:    ⬅️ :arrow_left:
  :capital_abcd:      :abcd:      :abc:
↙️ :arrow_lower_left:    ↘️ :arrow_lower_right:    ➡️ :arrow_right:
⬆️ :arrow_up:    ↖️ :arrow_upper_left:    ↗️ :arrow_upper_right:
⏬ :arrow_double_down:    ⏫ :arrow_double_up:      :arrow_down_small:
⤵️ :arrow_heading_down:    ⤴️ :arrow_heading_up:    ↩️ :leftwards_arrow_with_hook:
↪️ :arrow_right_hook:    ↔️ :left_right_arrow:    ↕️ :arrow_up_down:
  :arrow_up_small:      :arrows_clockwise:      :arrows_counterclockwise:
⏪ :rewind:    ⏩ :fast_forward:    ℹ️ :information_source:
  :ok:      :twisted_rightwards_arrows:      :repeat:
  :repeat_one:      :new:      :top:
  :up:      :cool:      :free:
  :ng:      :cinema:      :koko:
  :signal_strength:      :u5272:      :u5408:
  :u55b6:      :u6307:     ️ :u6708:
  :u6709:      :u6e80:      :u7121:
  :u7533:      :u7a7a:      :u7981:
 ️ :sa:      :restroom:      :mens:
  :womens:      :baby_symbol:      :no_smoking:
 ️ :parking:    ♿ :wheelchair:      :metro:
  :baggage_claim:      :accept:      :wc:
  :potable_water:      :put_litter_in_its_place:    ㊙️ :secret:
㊗️ :congratulations:    Ⓜ️ :m:      :passport_control:
  :left_luggage:      :customs:      :ideograph_advantage:
  :cl:      :sos:      :id:
  :no_entry_sign:      :underage:      :no_mobile_phones:
  :do_not_litter:      :non-potable_water:      :no_bicycles:
  :no_pedestrians:      :children_crossing:    ⛔ :no_entry:
✳️ :eight_spoked_asterisk:    ✴️ :eight_pointed_black_star:      :heart_decoration:
  :vs:      :vibration_mode:      :mobile_phone_off:
  :chart:      :currency_exchange:    ♈ :aries:
♉ :taurus:    ♊ :gemini:    ♋ :cancer:
♌ :leo:    ♍ :virgo:    ♎ :libra:
♏ :scorpius:    ♐ :sagittarius:    ♑ :capricorn:
♒ :aquarius:    ♓ :pisces:    ⛎ :ophiuchus:
  :six_pointed_star:    ❎ :negative_squared_cross_mark:     ️ :a:
 ️ :b:      :ab:     ️ :o2:
  :diamond_shape_with_a_dot_inside:    ♻️ :recycle:      :end:
  :on:      :soon:      :clock1:
  :clock130:      :clock10:      :clock1030:
  :clock11:      :clock1130:      :clock12:
  :clock1230:      :clock2:      :clock230:
  :clock3:      :clock330:      :clock4:
  :clock430:      :clock5:      :clock530:
  :clock6:      :clock630:      :clock7:
  :clock730:      :clock8:      :clock830:
  :clock9:      :clock930:      :heavy_dollar_sign:
©️ :copyright:    ®️ :registered:    ™️ :tm:
❌ :x:    ❗ :heavy_exclamation_mark:    ‼️ :bangbang:
⁉️ :interrobang:    ⭕ :o:    ✖️ :heavy_multiplication_x:
➕ :heavy_plus_sign:    ➖ :heavy_minus_sign:    ➗ :heavy_division_sign:
  :white_flower:      :100:    ✔️ :heavy_check_mark:
☑️ :ballot_box_with_check:      :radio_button:      :link:
➰ :curly_loop:    〰️ :wavy_dash:    〽️ :part_alternation_mark:
  :trident:    :black_square: :black_square:    
✅ :white_check_mark:      :black_square_button:
  :white_square_button:
⚫ :black_circle:    ⚪ :white_circle:      :red_circle:
  :large_blue_circle:      :large_blue_diamond:      :large_orange_diamond:
  :small_blue_diamond:      :small_orange_diamond:    
  :small_red_triangle:  :small_red_triangle_down:

  :house:      :house_with_garden:      :school:
  :office:      :post_office:      :hospital:
  :bank:      :convenience_store:      :love_hotel:
  :hotel:      :wedding:    ⛪ :church:
  :department_store:      :european_post_office:      :city_sunrise:
  :city_sunset:      :japanese_castle:      :european_castle:
⛺ :tent:      :factory:      :tokyo_tower:
  :japan:      :mount_fuji:      :sunrise_over_mountains:
  :sunrise:      :stars:      :statue_of_liberty:
  :bridge_at_night:      :carousel_horse:      :rainbow:
  :ferris_wheel:    ⛲ :fountain:      :roller_coaster:
  :ship:      :speedboat:    ⛵ :boat:
⛵ :sailboat:      :rowboat:    ⚓ :anchor:
  :rocket:    ✈️ :airplane:      :helicopter:
  :steam_locomotive:      :tram:      :mountain_railway:
  :bike:      :aerial_tramway:      :suspension_railway:
  :mountain_cableway:      :tractor:      :blue_car:
  :oncoming_automobile:      :car:      :red_car:
  :taxi:      :oncoming_taxi:      :articulated_lorry:
  :bus:      :oncoming_bus:      :rotating_light:
  :police_car:      :oncoming_police_car:      :fire_engine:
  :ambulance:      :minibus:      :truck:
  :train:      :station:      :train2:
  :bullettrain_front:      :bullettrain_side:      :light_rail:
  :monorail:      :railway_car:      :trolleybus:
  :ticket:    ⛽ :fuelpump:      :vertical_traffic_light:
  :traffic_light:    ⚠️ :warning:      :construction:
  :beginner:      :atm:      :slot_machine:
  :busstop:      :barber:    ♨️ :hotsprings:
  :checkered_flag:      :crossed_flags:      :izakaya_lantern:
  :moyai:      :circus_tent:      :performing_arts:
  :round_pushpin:      :triangular_flag_on_post:       :jp:

:smile:

参考

1.https://www.runoob.com/markdown/md