Swift Chaw Ua Si yog ib daim ntawv thov tsim los pab txhawb kev kawm thiab tsim cov ntawv thov siv Swift programming lus. Nrog rau cov cuab yeej no, cov programmers tuaj yeem tsim thiab sim nrog cov lej hauv kev sib tham sib thiab pom kev txaus siab. Hauv tsab xov xwm no, peb yuav tshawb nrhiav cov txheej txheem txhim kho app siv Swift Playgrounds app thiab koj tuaj yeem tau txais txiaj ntsig zoo tshaj plaws ntawm cov cuab yeej programming no.
1. Kev Taw Qhia rau Swift Chaw Ua Si
Swift Chaw Ua Si yog ib daim ntawv thov tsim los ntawm Apple uas tso cai rau cov neeg siv kawm, sim thiab tsim cov ntawv thov siv Swift programming lus Nrog cov cuab yeej no, cov neeg tsim khoom tuaj yeem tsim thiab khiav Swift code hauv kev sib tham sib thiab tus phooj ywg.
Hauv Swift Playgrounds, Cov neeg siv tuaj yeem tshawb nrhiav cov ntsiab lus sib txawv thiab paub txog Swift syntax los ntawm kev sib tw thiab kev sib tw. Lub app muab qhov kev nkag siab zoo nrog luag-thiab-nco nta, ua kom yooj yim los tsim thiab hloov cov cai. Tsis tas li ntawd, cov neeg siv tuaj yeem pom cov txiaj ntsig ntawm lawv cov cai nyob rau lub sijhawm tiag tiag, uas tso cai rau lawv nkag siab txog cuam tshuam ntawm lawv cov kev hloov tam sim ntawd.
Ib qho tseem ceeb tshaj plaws ntawm Swift Chaw Ua Si Nws yog nws lub peev xwm los cuam tshuam nrog cov cuab yeej kho vajtse thiab sensors. Cov neeg siv tuaj yeem ua kom zoo dua ntawm qhov kev ua haujlwm no tsim cov ntawv thov uas siv lub accelerometer, gyroscope los yog lub koob yees duab ntawm ib lub iPhone los yog iPad. Qhov no ua rau Swift Playgrounds yog cov cuab yeej zoo tshaj plaws rau cov neeg nyiam tsim cov ntawv thov uas siv tag nrho cov peev txheej ntawm cov khoom siv txawb.
Dhau li ntawm qhov ntawd, Swift Chaw Ua Si muab qhov muaj peev xwm ntawm kev sib koom ua haujlwm thiab cov teeb meem nrog lwm tus neeg siv los ntawm AirDrop lossis huab kev pabcuam. Qhov no txhawb kev sib koom tes thiab tso cai rau cov neeg tsim khoom kawm los ntawm lwm tus thiab qhia lawv cov kev paub Swift Chaw Ua Si yog ib tug haib thiab ntau yam cuab yeej uas tso cai rau cov neeg siv delve rau hauv nyob hauv ntiaj teb no thov kev txhim kho hauv kev lom zem thiab kev kawm.
2. Cov cuab yeej thiab cov yam ntxwv tseem ceeb ntawm Swift Playgrounds
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Swift Playgrounds yog daim ntawv thov tsim kho software tsim thiab sim nrog cov ntawv thov hauv Apple's Swift lus. Daim ntawv thov no muab ntau yam cov cuab yeej thiab cov yam ntxwv cov cuab yeej tseem ceeb uas ua rau cov txheej txheem txhim kho daim ntawv thov ua haujlwm tau zoo dua thiab siv tau rau cov programmer ntawm txhua qib kev paub.
Ib qho ntawm cov cov yam ntxwv tseem ceeb los ntawm Swift Playgrounds yog nws interactive programming ib puag ncig. Cov neeg siv tuaj yeem sau thiab khiav Swift code hauv lub sijhawm tiag tiag, cia lawv pom cov txiaj ntsig ntawm lawv txoj haujlwm tam sim ntawd. Tsis tas li ntawd, daim ntawv thov muaj a cov tsev qiv ntawv dav dav ntawm cov piv txwv cov lej thiab cov kev kawm sib tham uas pab cov neeg siv kawm cov lus Swift hauv txoj kev nkag siab thiab lom zem.
Lwm yam cov cuab yeej tshwj xeeb ntawm Swift Playgrounds yog nws lub peev xwm los debug code. Cov neeg tsim khoom tuaj yeem siv cov kev debugger kev txhawm rau txheeb xyuas thiab txhim kho qhov tsis raug hauv koj cov cai, ua kom yooj yim rau kev daws teeb meem thiab txhim kho kev ua haujlwm ntawm daim ntawv thov. Tsis tas li ntawd, lub app tso cai rau cov neeg siv xav txog y hloov lub xeev ntawm cov variables Thaum lub sijhawm ua tiav cov haujlwm, ua kom yooj yim los tswj kev khiav ntawm daim ntawv thov.
3. Nkag siab txog cov qauv yooj yim ntawm daim ntawv thov hauv Swift
Thaum tsim cov apps nrog Swift Playgrounds app, nws tseem ceeb heev rau . Lub Swift app yog tsim los ntawm cov khoom sib txuas thiab cov haujlwm uas ua haujlwm ua ke los tsim kom muaj kev paub zoo ntawm cov neeg siv khoom.
Tshaj tawm ntawm qhov sib txawv thiab qhov tsis tu ncua: Hauv Swift, nws yog ib qho tseem ceeb kom nkag siab yuav ua li cas tshaj tawm qhov sib txawv thiab qhov tsis tu ncua, vim tias lawv yog lub hauv paus ntawm txhua daim ntawv thov. Cov kev sib txawv yog siv los khaws thiab tswj cov ntaub ntawv uas tuaj yeem hloov pauv raws sijhawm, thaum lub sijhawm siv los khaws cov ntaub ntawv uas hloov tsis tau lossis tsis hloov. Ob leeg tau tshaj tawm siv lo lus tseem ceeb "var" lossis "cia", ua raws li lub npe ntawm qhov sib txawv lossis qhov tsis tu ncua thiab nws cov ntaub ntawv hom.
Cov Haujlwm: Functions yog ib feem tseem ceeb ntawm txhua daim ntawv thov Swift. Functions tso cai rau koj los pab pawg cov lus qhia uas ua haujlwm tshwj xeeb. Lawv tuaj yeem sib cav thiab xa rov qab tus nqi . Los ntawm kev siv cov haujlwm, koj tuaj yeem ua txhaum cai rau hauv me me, rov siv tau qhov chaw, ua kom yooj yim rau kev tswj thiab txhim kho. Cov haujlwm tau tshaj tawm siv "func" lo lus tseem ceeb, ua raws li lub npe ua haujlwm, qhov xav tau kev sib cav, thiab hom txiaj ntsig, yog tias muaj.
Control flow : Cov kev tswj ntws txhais tau hais tias qhov kev txiav txim uas cov lus qhia raug ua tiav hauv daim ntawv thov hauv Swift, muaj ntau yam kev tswj hwm muaj, xws li rau lub voj, thaum lub voj, thiab cov lus "yog-lwm". Cov qauv no tso cai rau koj los tswj cov dej ntws ntawm kev ua lej thiab txiav txim siab raws li ntawm qee yam xwm txheej. Nrog kev nkag siab meej txog kev khiav ntawm kev tswj hwm hauv Swift, koj tuaj yeem tsim cov ntawv thov muaj zog dua thiab siv tau zoo.
Los ntawm kev paub txog kev nkag siab ntawm cov qauv yooj yim ntawm ib qho app hauv Swift, cov neeg tsim khoom tuaj yeem tsim cov apps zoo dua, zoo dua. Nrog rau cov cuab yeej zoo, xws li Swift Playgrounds, koj tuaj yeem tshawb nrhiav thiab sim nrog cov ntsiab lus no los tsim cov apps zoo heev. Nco ntsoov tias kev nkag siab zoo ntawm qhov sib txawv, qhov tsis tu ncua, kev ua haujlwm, thiab kev tswj hwm ntws hauv Swift yog qhov tseem ceeb los tsim kev ua tiav.
4. Tshawb nrhiav cov ntsiab lus tseem ceeb hauv kev ua si hauv Swift Playgrounds
Hauv cov ntawv tshaj tawm no, peb yuav los piav qhia txog cov ntsiab lus tseem ceeb hauv kev ua si hauv Swift Playgrounds, daim ntawv thov tsim los tsim cov ntawv thov sai thiab yooj yim. Nrog rau cov cuab yeej no, cov neeg siv tuaj yeem kawm ua haujlwm hauv Swift lus, siv los tsim cov ntawv thov ntawm iOS, macOS, watchOS thiab tvOS.
Ib qho ntawm qhov zoo ntawm Swift Playgrounds yog tias nws muab kev sib tham sib kev loj hlob ib puag ncig, tso cai rau cov programmers kev paub thiab kawm nyob rau hauv ib txoj kev xyaum. Daim ntawv thov muaj qhov nkag siab zoo thiab tus phooj ywg interface, zoo tagnrho rau ob qho tib si pib thiab cov neeg uas xav nkag siab txog lawv txoj kev paub txog kev ua haujlwm. Tsis tas li ntawd, nws muaj ntau yam kev sib tw thiab kev tawm dag zog uas pab txhawb kev txawj coding.
Qee qhov ntawm cov ntsiab lus tseem ceeb uas tuaj yeem tshawb pom hauv Swift Playgrounds suav nrog kev hloov pauv, ua haujlwm, tswj cov qauv, voj, thiab cov khoom. Cov tswv yim no yog lub hauv paus ntawm txhua qhov kev pab cuam thiab yog qhov tseem ceeb rau kev nkag siab txog kev tsim cov ntawv thov li cas. Raws li cov programmers nce lawv cov kev txawj ntse, lawv kuj tseem tuaj yeem tshawb nrhiav cov ncauj lus siab dua, xws li ua haujlwm nrog cov ntaub ntawv khaws cia, API thiab tsim cov graphical user interfaces.
5. Tsim thiab sim ib qho yooj yim app hauv Swift Playgrounds
Hauv tsab ntawv no, peb yuav tshawb xyuas seb yuav ua li cas tsim thiab sim ib qho yooj yim app hauv Swift Playgrounds. Swift Playgrounds yog ib qho app los ntawm Apple uas tso cai rau cov neeg tsim khoom los tsim and thwmsim nrog Swift, cov lus programming siv los tsim cov apps hauv Cov khoom siv iOS. Nrog Swift Playgrounds, cov neeg tsim khoom tuaj yeem sau thiab ntsuas cov lej hauv lub sijhawm tiag tiag, uas ua rau txoj kev loj hlob zoo dua thiab sai dua.
Txhawm rau pib tsim ib qho app hauv Swift Playgrounds, peb yuav tsum xub muaj lub tswv yim meej ntawm qhov peb xav ua kom tiav. Peb tuaj yeem pib los ntawm txhais cov hom phiaj thiab lub luag haujlwm tseem ceeb ntawm peb daim ntawv thov. Thaum peb muaj kev pom tseeb ntawm qhov no, peb tuaj yeem pib txoj kev txhim kho.
Thaum peb muaj lub tswv yim meej txog qhov peb xav ua tiav nrog peb lub app, peb tuaj yeem ua raws li cov kauj ruam no los tsim thiab sim nws hauv Swift Playgrounds:
- Tsim cov ntaub ntawv tshiab hauv Swift Playgrounds.
- Txhais cov qauv ntawm daim ntawv thov, suav nrog cov ntxaij vab tshaus sib txawv thiab cov khoom tsim nyog.
- Sau cov cai tsim nyog rau siv kev ua haujlwm ntawm daim ntawv thov.
- Kuaj lub app hauv lub sijhawm siv Swift Playgrounds simulator.
- Ua qhov kev sim dav dav kom txheeb xyuas thiab kho qhov ua tau yuam kev.
Nrog Swift Playgrounds, cov txheej txheem txhim kho app tau nkag mus tau zoo dua thiab zoo siab. Cov neeg tsim khoom tuaj yeem sim thiab sim cov kev sib txawv thiab cov kev daws teeb meem hauv lub sijhawm tiag tiag, tso cai rau lawv tsim cov ntawv thov tau zoo dua. Yog tias koj yog tus tsim tawm nrhiav kev kawm thiab tshawb nrhiav Swift, Swift Playgrounds yog ib qho cuab yeej uas koj yuav tsum muaj nyob hauv koj lub arsenal.
6. Txhim kho cov apps nrog Swift Playgrounds: Siv cov tsev qiv ntawv sab nraud thiab cov peev txheej
Txhim kho apps nrog Swift Playgrounds: Siv cov tsev qiv ntawv sab nraud thiab cov peev txheej
Swift Playgrounds yog qhov muaj ntau yam app uas tso cai rau cov neeg tsim khoom siv siv cov tsev qiv ntawv sab nraud thiab cov peev txheej los txhim kho lawv cov kev tsim nrog Swift Playgrounds, cov neeg tsim khoom tuaj yeem ntxiv kev ua haujlwm ntxiv rau lawv cov apps los ntawm kev siv cov tsev qiv ntawv thiab cov cuab yeej uas twb muaj lawm. Qhov no txhais tau tias lawv tsis tas yuav tsim txhua yam. txij thaum pib, txuag lawv lub sijhawm thiab kev siv zog hauv cov txheej txheem txhim kho.
Siv cov tsev qiv ntawv sab nraud thiab cov peev txheej hauv Swift Playgrounds tsis tsuas yog txuag cov neeg tsim khoom lub sijhawm, tab sis kuj muab lawv nkag mus rau ntau yam ntawm cov yam ntxwv thiab kev ua haujlwm uas lawv tuaj yeem ntxiv rau lawv cov apps. Piv txwv li, lawv tuaj yeem ua kom zoo dua ntawm cov tsev qiv ntawv duab los txhim kho qhov pom ntawm lawv daim ntawv thov lossis siv cov tsev qiv ntawv ua cov duab los tswj cov duab zoo dua. Ntxiv rau, cov peev txheej sab nraud xws li databases lossis APIs tso cai rau cov neeg tsim khoom nkag mus rau cov ntaub ntawv tshiab lossis cuam tshuam nrog lwm lub tshuab.
Nrog Swift Playgrounds, cov neeg tsim khoom tuaj yeem sim thiab sim cov tsev qiv ntawv sib txawv thiab cov peev txheej sab nraud yam tsis muaj kev cuam tshuam cov cai ntawm lawv daim ntawv thov tseem ceeb. Qhov no tso cai rau lawv tshawb nrhiav cov yam ntxwv tshiab thiab ntsuas lawv txoj kev vam meej ua ntej tag nrho kev koom ua ke rau hauv lawv daim ntawv thov. Txoj kev no, cov neeg tsim khoom tuaj yeem txuas ntxiv rov hais dua thiab txhim kho lawv cov apps, hloov kho lawv raws li lawv pom cov yam ntxwv ua haujlwm zoo tshaj rau lawv cov neeg siv.
7. Kev hloov kho thiab hloov kho ntawm cov ntawv thov hauv Swift Playgrounds
Nws yog ib txoj haujlwm tseem ceeb rau cov neeg tsim khoom uas xav tsim cov kev paub tshwj xeeb kom haum rau cov kev xav tau ntawm cov neeg siv. Nrog rau daim ntawv thov no, koj tuaj yeem tsim thiab hloov kho cov ntawv thov yooj yim thiab ua tau zoo, ua kom zoo dua ntawm cov cuab yeej thiab cov haujlwm tau muab los ntawm Swift, Apple cov lus programming.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm Swift Playgrounds yog nws lub peev xwm customize cov tsos thiab functionality ntawm daim ntawv thov los ntawm kev siv Swift moj khaum sib txawv thiab cov tsev qiv ntawv. Cov no tso cai rau koj ntxiv cov duab nraaj, xws li cov nyees khawm, cov duab thiab cov animations, nrog rau cov haujlwm tshwj xeeb xws li nkag mus rau lub koob yees duab lossis kev koom ua ke nrog cov kev pabcuam online. Cov neeg tsim khoom tuaj yeem siv qhov zoo ntawm cov cuab yeej no rau tsim kom zoo nkauj interfaces yoog raws li qhov pom ntawm koj hom.
Lwm txoj hauv kev los kho thiab hloov kho cov apps hauv Swift Playgrounds yog los ntawm kev siv parameters thiab kev teeb tsaCov no tso cai rau cov neeg siv los kho qee yam ntawm daim ntawv thov raws li lawv nyiam. Piv txwv li, koj tuaj yeem muab cov kev xaiv kho kom haum rau cov xim, qhov loj me, lossis qib nyuaj hauv kev ua si. Tsis tas li ntawd, los ntawm kev siv tshuab kawm algorithmsNws tuaj yeem hloov kho daim ntawv thov kev paub raws li tus neeg siv tus cwj pwm thiab kev nce qib.
8. Kev daws teeb meem thiab debugging apps hauv Swift Playgrounds
Nyob rau hauv lub ntiaj teb fascinating ntawm daim ntawv thov kev loj hlob, Swift Playgrounds tau los ua ib tug indispensable cuab tam. Tab sis, zoo li txhua daim ntawv thov, qee zaum teeb meem thiab yuam kev tuaj yeem tshwm sim uas cuam tshuam peb txoj haujlwm. Nov yog qee cov kev daws teeb meem thiab cov txheej txheem debugging los pab koj kho cov teeb meem sai sai.
Txheeb xyuas qhov ua yuam kev
Kauj ruam thawj zaug rau daws teeb meem hauv Swift Playgrounds yog txheeb xyuas tej yam yuam kev. Qhov no suav nrog cov syntax yuam kev, cov laj thawj yuam kev, thiab kev ua haujlwm tsis raug. Los ntawm nkag siab txog hom kev ua yuam kev, koj yuav muaj peev xwm cais tawm sai dua thiab daws txhua yam teeb meem uas yuav tshwm sim. Nco ntsoov xyuas cov cai kom zoo thiab xyuas kom meej tias tag nrho cov braces thiab lub voj voog raug kaw kom raug thiab qhib. Tsis tas li ntawd, xyuam xim rau qhov yuam kev thiab cov lus ceeb toom uas tau muab los ntawm Swift Playgrounds, vim lawv feem ntau muab cov lus qhia rau lub hauv paus ntawm qhov yuam kev.
Siv cov breakpoints
Lub cov ntsiab lus tawg Lawv yog cov cuab yeej tseem ceeb rau kev debugging daim ntawv thov hauv Swift Playgrounds. Koj tuaj yeem teem caij so ntawm qee cov kab ntawm cov cai kom txwv kev ua haujlwm ntawm qhov tshwj xeeb ntawd. Qhov no tso cai rau koj los tshuaj xyuas cov xwm txheej ntawm qhov sib txawv thiab txheeb xyuas seb lawv puas tau muab cov txiaj ntsig xav tau raug. Tsis tas li ntawd, koj tuaj yeem siv lub console tsim rau hauv Swift Playgrounds los luam tawm cov lus debug thiab teev cov nqi sib txawv hauv lub sijhawm. Cov ntaub ntawv no yuav pab koj nkag siab tias koj tus lej ua haujlwm li cas thiab txheeb xyuas qhov ua yuam kev.
Reactor thiab yooj yim code
Yog tias koj tawm tsam nrog qhov teeb meem nyuaj hauv koj lub Swift Playgrounds app, qee zaum refactor thiab simplify koj cov cai tej zaum yuav yog qhov kev daws teeb meem. Tshem tawm qhov tsis tsim nyog, rhuav tshem qhov teeb meem mus rau hauv qhov me me, thiab siv cov haujlwm piav qhia thiab hloov pauv tuaj yeem pab koj txheeb xyuas qhov tsis raug lossis teeb meem kev xav tau yooj yim dua. Nco ntsoov ua raws li cov kev coj ua zoo tshaj plaws thiab siv tus lej zoo sib xws kom koj cov cai huv thiab nyeem tau. Tsis tas li ntawd, xav txog kev ua haujlwm hauv ib puag ncig kev txhim kho kev sib koom ua ke (IDE) uas muaj kev debugging ntxiv thiab kev txheeb xyuas cov lej kom yooj yim txheeb xyuas thiab daws teeb meem.
9. Kev siv thiab faib cov ntawv thov tsim hauv Swift Playgrounds
Thaum koj tau tsim ib qho app siv Swift Playgrounds, cov kauj ruam tom ntej yog mus siv nws ntawm cov khoom siv tiag tiag. Swift Playgrounds muab koj cov kev xaiv los qhia koj cov app ncaj qha los ntawm App Store Txuas, qhov twg koj tuaj yeem tshuaj xyuas thiab hloov kho koj cov apps ua ntej xa tawm Koj tuaj yeem thawb koj cov apps rau koj tus kheej siv cov cuab yeej tsim thiab ua tiav ntawm Swift Chaw ua si.
La kev faib tawm ntawm cov ntawv thov tsim hauv Swift Playgrounds muaj ntau txoj kev xaiv. Ib qho ntawm lawv yog kev faib ncaj qha los ntawm App Store Txuas, qhov twg koj cov apps yuav raug tshuaj xyuas los ntawm Apple pawg tshuaj xyuas ua ntej lawv muaj rau rub tawm nyob rau hauv App Store. Yog tias koj tsis xav siv App Store, koj tuaj yeem faib koj cov apps los ntawm lwm lub platform, zoo li TestFlight, qhov twg koj tuaj yeem qhia koj cov apps nrog ib pab pawg neeg siv rau kev tawm tswv yim thiab kev sim ntxiv.
Muaj ntau forms ntawm siv thiab faib koj daim ntawv thov tsim hauv Swift Playgrounds. Koj tuaj yeem xaiv faib koj cov apps dawb, kom cov neeg siv tuaj yeem rub tawm lawv dawb los ntawm App Store. Koj tseem tuaj yeem muab koj cov apps raws li kev them nyiaj, teeb tsa tus nqi kom cov neeg siv tuaj yeem yuav lawv Ntxiv rau, koj tuaj yeem siv hauv app yuav khoom los muab cov ntsiab lus ntxiv lossis cov txiaj ntsig zoo rau cov neeg siv khoom uas yuav koj lub app.
10. Cov kauj ruam tom ntej: Cov Kev Pab Ntxiv rau Advanced App Development hauv Swift Playgrounds
Tam sim no koj muaj kev nkag siab zoo ntawm Swift Playgrounds thiab yuav ua li cas cov apps tsim nrog cov cuab yeej no, nws yog lub sijhawm los ua nws ib kauj ruam ntxiv thiab tshawb nrhiav cov peev txheej ntxiv los coj koj cov txuj ci mus rau qib tom ntej. Nov yog qee qhov kev pab cuam uas yuav pab koj nkag siab tob rau hauv kev txhim kho app siab heev hauv Swift Playgrounds:
1. Cov ntaub ntawv Apple official: Apple cov ntaub ntawv raug cai yog cov ntaub ntawv tseem ceeb rau kev txhim kho hauv Swift. Ntawm no koj yuav pom cov lus qhia ntxaws ntxaws, kev qhia, thiab cov ntaub ntawv ntawm txhua qhov kev ua haujlwm thiab cov yam ntxwv ntawm Swift Playgrounds thiab Xcode kev txhim kho ib puag ncig. Koj tuaj yeem nkag mus rau cov ntaub ntawv ntawm Apple lub vev xaib official.
2. Cov chav kawm online: Muaj ntau cov kev kawm online muaj uas tsom tshwj xeeb rau kev txhim kho app siab heev hauv Swift. Cov kev kawm no yog tsim los coj koj cov kev txawj ntse mus rau qib tom ntej thiab pab koj paub ntau cov tswv yim nyuaj xws li tus neeg siv interface tsim, tswj cov ntaub ntawv, thiab kev txhim kho daim ntawv thov hla lub platform. Qee qhov kev kawm uas nrov tshaj plaws suav nrog "Advanced Swift Kev Txhim Kho" los ntawm Udemy thiab "Swift Playgrounds: Tshaj Li Qhov Tseem Ceeb" los ntawm Coursera.
3. Developer community: Koom nrog Swift cov neeg tsim tawm hauv zej zog yog txoj hauv kev zoo los kawm los ntawm lwm tus kws tshaj lij hauv thaj chaw thiab tau txais cov lus qhia muaj txiaj ntsig thiab kev ua kom yuam kev. Koj tuaj yeem koom nrog hauv kev sib tham, pab pawg sib tham, thiab cov txheej xwm txheej xwm los cuam tshuam nrog lwm tus neeg tsim khoom thiab qhia koj cov kev paub dhau los. Koj tseem tuaj yeem nrhiav cov peev txheej, cov lej cim, thiab cov qauv qauv hauv online los pab koj txhim kho koj cov txuj ci hauv Swift Playgrounds thiab kev txhim kho app feem ntau.
Kuv yog Sebastián Vidal, tus kws kho tshuab computer mob siab rau kev siv tshuab thiab DIY. Tsis tas li ntawd, kuv yog tus tsim tecnobits.com, qhov twg kuv qhia cov lus qhia ua kom siv thev naus laus zis ntau dua thiab nkag siab rau txhua tus.