Introduktion til symboler i HTML
Symboler, der skal bruges i HTML, er en af de vigtigste dele af webudvikling eller i applikationsudviklingsprocessen. Der er forskellige typer symboler, der kan bruges i HTML som matematiske, fysiske, tekniske og valutasymboler. Så for at bruge et sæt af disse slags symboler i websideudviklingen, skal HTML-enhedsnavnet bruges.
Hvis der ikke findes noget enhedsnavn, kan symboler i HTML bruges med enhedsnummer, der er i form af decimal eller hexadecimal. Det inkluderer matematiske operatorer, pile, figurer, nogle tekniske symboler, som ikke er tilgængelige på tastaturet.
Liste over symboler i HTML
Der er flere symboler brugt i HTML ved hjælp af enhedsnavn eller med enhedsnummer, lad os se en efter en:
| Karakter | Nummer | Enhed | Beskrivelse / forklaring | Eksempel |
| ∀ | ∀ | ∀ | Det bruges til alle. |
Symbol, der viser alt indhold vha. ∀ |
| ∂ | ∂ | ∂ | Det bruges til at vise delvis forskel. |
Symbol, der viser al delvis differentiel ∂ |
| ∃ | ∃ | ∃ | Det bruges til at vise der findes. |
Symbol, der viser alt eksisterende indhold vha. ∃ |
| ∅ | ∅ | ∅ | dette symbol bruges til at vise tomme sæt. |
Symbol, der viser tomt sæt ∅ |
| ∈ | ∈ | ∈ | Det bruges til at vise tilstedeværelsen af elementer i |
Symbol, der viser elementer fra ∈ |
| ∉ | ∉ | ∉ | Det viser, at det ikke er et element af |
Symbol, der ikke viser et element ∉ |
| ∋ | ∋ | ∋ | Dette symbol bruges til at vise, at det indeholder et medlem. |
Symbol viser Indeholder som medlem ∋ |
| Π | Π | Π | Dette symbol bruges til at vise N-ARY-produkter. |
Symbol, der viser N-ARY-PRODUKT ∏ |
| Σ | Σ | Σ | Dette symbol bruges til at vise N-ARY SUMMATION |
Symbol, der viser N-ARY SUMMATION ∑ |
| ∇ | ∇ | ∇ | Det bruges til at vise NABLA |
Symbol, der viser NABLA ∇ |
| © | © | © | Dette symbol bruges til at vise tekstforfattere på et bestemt dokument. |
Copywrite-tegn vises ved hjælp af © |
| ® | ® | ® | Disse symboler hjælper dig med at få vist et registreret tegn. |
Registreret tegn vises ved hjælp af symbol ® |
| € | € | € | Eurotegn vises ved hjælp af dette symbol. |
EURO-tegn vises ved hjælp af € |
| ™ | ₾ | ™ | Varemærkesymbolet vises ved hjælp af denne kode. |
Varemærkesymbol ved hjælp af ₾ |
| ← | ← | ← | Dette symbol bruges til at vise pilen til venstre. |
VENSTRE PIL ved hjælp af ← |
| → | → | & rarr; | Dette symbol bruges til at vise pilen til højre. |
RETTIGHEDER PIL ved hjælp af → |
| ↑ | ↑ | ↑ | Dette symbol bruges til at vise pil opad. |
PIL OPSTILLING ved hjælp af ↑ |
| ↓ | ↓ | ↓ | Dette symbol bruges til at vise pil opad. |
NEDPILER PIL ved hjælp af ↓ |
| ♠ | ♠ | ♠ | Dette symbol viser en sort spaddragt. |
Symbol til SVART SPADE SUIT ♠ |
| ♣ | ♣ | ♣ | Dette symbol viser en sort klubdragt. |
Symbol til SORT KLUBBUD IT |
| ♥ | ♥ | ♥ | Dette symbol viser en sort hjertedragt. |
Symbol til SORT HJÆRTS SUIT ♥ |
| ♦ | ♦ | ♦ | Dette symbol viser sort diamantdragt. |
Symbol til SORT DIAMOND SUIT ♦ |
| ° | ° | ° | Dette symbol repræsenterer et gradstegn. |
Symbol, der viser gradstegn ° |
| ± | ± | ± | Det angiver plus minus-tegn sammen. |
Symbol, der viser tegn ± |
| μ | μ | μ | Dette symbol bruges til at vise mikro. |
symbolmikro vises µ |
| ¶ | & # 182 | ¶ | Et afsnit vises ved hjælp af dette symbol. |
Afsnit vises ved hjælp af & # 182 |
| ¿ | ¿ | ¿ | Omvendt spørgsmålstegn, der viser dette symbol. |
INVERTED spørgsmålstegn ¿ |
| × | × | × | Multiplikationstegn ved hjælp af dette symbol. |
Matematisk multiplikationstegn × |
| ÷ | ÷ | ÷ | Matematisk opdelingssymbol ved hjælp af denne værdi. |
Opdelingsoperation udført med symbolet ÷ |
| ¼ | ¼ | ¼ | ¼ del kan vises ved hjælp af dette symbol. |
En fjerde del kan vises ved hjælp af symbolet ¼ |
| ½ | ½ | ½ | ½ del kan vises ved hjælp af dette symbol. |
Halvdel kan vises med symbol ½ |
| ¾ | ¾ | ¾ | ¾. Del kan vises ved hjælp af dette symbol. |
Tre fjerde del kan vises ved hjælp af symbolet ¾ |
eksempler
Herunder er nogle eksempler på HTML-symboler:
Eksempel 1
HTML-symboler til matematisk betjening.
HTML-kode:
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Mathematical Operations Symbols
Plus Minus Sign ±
Multiplication sign ×
Division sign ÷
One fourth part showing sign ¼
Half part showing sign ½
Three Fourth part showing sign ¾
There Exist Sign ∃
Empty Set Sign ∅
CONTAINS AS MEMBER sign ∋
N-ARY PRODUCT sign ∏
N-ARY SUMMATION ∑
Not a element sign ∉
Produktion:
Eksempel 2
Dette eksempel viser nogle specielle HTML-symboler:
HTML-kode :
Some special HTML symbols
Some special HTML symbols
Some special HTML symbols
Some special HTML symbols
© alle rettigheder forbeholdes
Det er ® til EDUBCA
Det er europæisk valuta, der vises gennem €
EDUBCA ™
Mikrosymbol µ
NABLA-symbol ∇
Afsnit vises ved hjælp af ¶
Produktion:
Eksempel 3
Eksempel på pil og andre symboler:
HTML-kode:
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
Some Arrows and other HTML symbols
VENSTRE PIL ←
RETTIGHEDER PIL →
PIL OPSTYRET ↑
PIL NEDTALER ↓
SVART SPADE SUIT ♠
BLACK CLUB SUIT ♣
SVART HJERTEDAG ♥
BLACK DIAMOND SUIT ♦
Produktion:
Konklusion
Disse kan indtastes ved hjælp af enhedsnavnet eller enhedsværdien. Der er flere symboler som matematiske operatorer, pile, tekniske symboler og form, græsk, nogle andre specielle symboler, der udføres ovenfor med et eksempel.
Anbefalede artikler
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