Video: Dab tsi yog qhov tsis muaj gutters hauv bootstrap 4?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Siv cov ` tsis muaj - gutters 'ua tshem tawm qhov sib nrug ( gutter ) nruab nrab ntawm kab. Bootstrap siv padding los tsim qhov sib nrug (A. K. A gutter ”) nruab nrab ntawm kab. Yog tias koj xav tau kab nrog tsis muaj kab rov tav sib nrug, Bootstrap 4 suav nrog a tsis muaj - gutters chav kawm uas tuaj yeem siv rau tag nrho kab.
Yog li ntawd, tsis muaj gutters txhais li cas?
Tsis muaj gutters Cov gutters nruab nrab ntawm kab hauv peb cov chav kawm ntawv teev tseg ua ntej ua tau raug tshem tawm nrog. tsis muaj - gutters . Qhov no tshem tawm cov npoo tsis zoo ntawm.row thiab kab rov tav padding los ntawm txhua kab me nyuam tam sim ntawd.
Ib sab saum toj no, kuv yuav ua li cas txo qhov chaw gutter hauv bootstrap? Txoj hauv kev: Los ntawm lub neej ntawd, Bootstrap 4 has class= no- gutters ”ua tshem tawm qhov chaw gutter ntawm ib qho tshwj xeeb div. Cov duab hauv qab no qhia txog qhov tseem ceeb gutter chaw thiab qhov chaw nruab nrab kab rau bootstrap 4 12 kab phiaj system. Koj tuaj yeem hloov kho gutter dav by txo 15 px w gutter chaw nruab nrab ntawm txhua kab.
Yog li ntawd, Col SM 4 yog dab tsi hauv bootstrap?
col - (cov khoom siv me me ntxiv - npo dav tsawg dua 576px). col - ib sm - (cov khoom siv me me - qhov dav dav sib npaug los yog ntau dua 576px)
Yuav ua li cas kuv nruab ib div hauv bootstrap 4?
1 - Vertical Center Siv Auto Margins Ib txoj hauv kev vertically chaw yog siv kuv-auto. Qhov no yuav chaw tus keeb hauv nws lub thawv flexbox (The Bootstrap 4 . kab yog zaub: flex). Piv txwv li, h-100 ua rau kab tag nrho qhov siab, thiab kuv-auto yuav vertically chaw col-sm-12 kab.
Pom zoo:
Dab tsi yog qhov uas tsis yog recursive qhovntsej thiaj tsis mob parser?
Kev kwv yees parsing yog ib daim ntawv tshwj xeeb ntawm recursive qhovntsej thiaj tsis mob parsing, qhov twg tsis muaj backtracking, yog li qhov no tuaj yeem kwv yees qhov kev tsim khoom siv los hloov cov hlua nkag. Tsis-recursive kwv yees parsing los yog rooj-tsav kuj hu ua LL(1) parser. Qhov parser no ua raws li qhov kev sib txuas ntawm sab laug (LMD)
Ib qho chaw tsis muaj zog puas tuaj yeem muaj qhov chaw tsis muaj zog?
Hom chaw tsis muaj zog muaj qee qhov yuam sij. Nco tseg- Lub koom haum tsis muaj zog ib txwm muaj kev koom tes tag nrho tab sis lub koomhaum muaj zog yuav tsis muaj tag nrho kev koom tes.Weak entity yog nyob ntawm qhov chaw muaj zog kom ntseeg tau tias muaj qhov tsis muaj zog. Zoo li lub koom haum muaj zog, qhov tsis muaj zog tsis muaj qhov tseem ceeb, Nws muaj feem cuam tshuam kev ntxub ntxaug
Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg
Dab tsi yog qhov tsis muaj dab tsi hauv Java?
Pej xeem txhais tau hais tias txoj kev pom thiab tuaj yeem raug hu los ntawm lwm yam khoom ntawm lwm hom. Lwm cov kev xaiv yog tus kheej, tiv thaiv, pob thiab pob-private.Qhov no txhais tau hais tias koj tuaj yeem hu rau txoj kev zoo li qub yam tsis muaj kev tsim anobject ntawm chav kawm. void txhais tau hais tias txoj kev tsis muaj nqi
Dab tsi yog qhov qub txeeg qub teg Dab tsi yog qhov sib txawv ntawm qhov qub txeeg qub teg piav nrog piv txwv?
Inheritance yog ib txoj hauv kev kom tau txais cov yam ntxwv thiab kev coj cwj pwm ntawm ib chav kawm los ntawm lwm chav kawm. Cov chav kawm uas cov tswv cuab tau txais qub txeeg qub teg yog hu ua chav kawm hauv paus, thiab chav kawm uas tau txais cov tswv cuab tam sim no hu ua chav derived. Inheritance siv IS-A kev sib raug zoo