Video: Dab tsi yog txoj hlua khiav rau tus cwj pwm '<'?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
XML khiav tawm cov cim
| Cov cim tshwj xeeb | dim daim ntawv | tau hloov los ntawm |
|---|---|---|
| Ampersand | & | & |
| Tsawg dua | < | < |
| Loj dua | > | > |
| Cov lus hais | " | " |
Kuj nug, dab tsi yog txoj hlua khiav rau tus cwj pwm '<'?
XML khiav tawm cov cim
| Cov cim tshwj xeeb | dim daim ntawv | tau hloov los ntawm |
|---|---|---|
| Ampersand | & | & |
| Tsawg dua | < | < |
| Loj dua | > | > |
| Cov lus hais | " | " |
Tsis tas li ntawd, cov cim dab tsi yuav tsum tau khiav tawm? Nrog lub plhaub raug (ksh, bash lossis zsh), koj yuav tsum tau hais cov cim hauv qab no tsawg kawg yog qee qhov xwm txheej.
- Whitespace (chaw, tab, kab tshiab - nco ntsoov tias cov kab ntawv tshiab tsis tuaj yeem hais nrog lub backslash).
- !
- "- plhaub syntax.
- # - tawm tswv yim pib thaum ua ntej los ntawm qhov chaw dawb; zsh qus.
- $ - plhaub syntax.
Ib yam li ib tug yuav nug, dab tsi yog tus cwj pwm rau txoj hlua khiav hauv XML?
XML khiav cov cim Tsuas muaj tsib: "" ' ' > & Escaping cov cim nyob ntawm qhov tshwj xeeb tus cwj pwm yog siv. Cov piv txwv tuaj yeem raug lees paub ntawm W3C Markup Validation Service.
Dab tsi yog cov cim tshwj xeeb hauv XML?
Siv Cov Cim Tshwj Xeeb hauv XML
| Symbol (npe) | Kev khiav tawm ib ntus |
|---|---|
| > (ntau tshaj) | > los yog > |
| & (ampersand) | & |
| ' (apostrophe lossis ib nqe lus hais) | ' |
| "(ob-txoj kev) | " |
Pom zoo:
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