Cov txheej txheem:
Video: Qhov system debug ua dab tsi hauv Apex?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kev debugging yog ib feem tseem ceeb hauv txhua qhov kev txhim kho programming. Hauv Apex , peb muaj tej yam cuab yeej uas yuav siv tau rau debugging . Ib tug ntawm lawv yog cov qhov system . debug () txoj kev uas luam tawm tus nqi thiab cov zis ntawm qhov sib txawv hauv qhov debug cov ntaub ntawv.
Hauv qhov no, kuv yuav ua li cas debug chav kawm apex?
Siv cov checkpoints, cav, thiab View State tab los pab debug cov cai koj tau sau
- Teem Cov Chaw Tshawb Xyuas hauv Apex Code. Siv Developer Console checkpoints los kho koj cov chav kawm Apex thiab ua rau.
- Overlaying Apex Code thiab SOQL nqe lus.
- Checkpoint Inspector.
- Log Inspector.
- Siv Custom Perspectives nyob rau hauv lub log Inspector.
- Debug Logs.
Tsis tas li ntawd, kuv yuav ua li cas thiaj tsim tau lub cav debug hauv Salesforce? Teem ib tus neeg siv raws tus chij ntawm tus neeg siv qhua.
- Los ntawm kev teeb tsa, nkag mus rau Debug Logs nyob rau hauv lub Quick Nrhiav lub thawv, ces nyem Debug Logs.
- Nyem Tshiab.
- Teem lub hom traced rau tus neeg siv.
- Qhib lub lookup rau Traced Entity Name teb, thiab tom qab ntawd nrhiav thiab xaiv koj tus neeg siv qhua.
- Muab qib debug rau koj tus chij kab.
- Nyem Txuag.
Ib tug kuj yuav nug, Kuv yuav ua li cas thiaj li kuaj xyuas qhov system debugging hauv Salesforce?
Rau saib a debug log, los ntawm Teeb, nkag mus Debug Nkag mus rau hauv Quick Find box, ces xaiv Debug Cov log. Ces nyem Saib tom ntej no debug log uas koj xav tshuaj xyuas. Nyem Download mus download tau lub cav ua ib cov ntaub ntawv XML.
Kuv yuav ua li cas debug ib nplooj ntawv VF?
Thawj ob peb tug debugging Cov txheej txheem siv yog: Thaum koj right-click hla ib qho point hauv a nplooj thiab xaiv Inspect Element, koj tau txais DOM Element qhia thiab CSS cov qauv uas siv tau pom. Qhov no cia koj pom dab tsi HTML / CSS / JavaScript tau tshwm sim los ntawm koj Visualforce.
Pom zoo:
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Dab tsi yog qhov zoo ntawm txheej txheej rau kev tsim qauv hauv kev khiav hauj lwm qhov system?
Nrog rau txheej txheej, txheej hauv qab yog cov khoom siv kho vajtse, thaum txheej siab tshaj plaws yog cov neeg siv interface. Lub ntsiab kom zoo dua yog simplicity ntawm kev tsim kho thiab debugging. Qhov teeb meem tseem ceeb yog txhais cov txheej txheem ntau yam. Lub ntsiab tsis zoo yog tias OS nyiam ua haujlwm tsawg dua li lwm yam kev siv
Dab tsi yog qhov dav thawj qhov kev tshawb nrhiav thiab qhov tob thawj qhov kev tshawb fawb?
BFS sawv rau Breadth First Search. DFS sawv cev rau Kev Tshawb Nrhiav Qhov tob. 2. BFS (Breadth First Search) siv Queue cov qauv ntaub ntawv los nrhiav txoj hauv kev luv tshaj. BFS tuaj yeem siv los nrhiav ib qhov chaw luv tshaj plaws hauv cov duab tsis hnyav, vim tias hauv BFS, peb mus txog qhov kawg uas muaj qhov tsawg kawg nkaus ntawm cov npoo los ntawm qhov chaw vertex
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
Dab tsi yog qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov ntsuas thib ob?
Primary index: nyob rau hauv ib tug sequentially order file, qhov Performance index uas nws search key qhia cov sequential order ntawm cov ntaub ntawv. Kuj hu ua clustering index. Secondary index: ib qho Performance index uas nws qhov tseem ceeb tshawb nrhiav qhia qhov kev txiav txim sib txawv ntawm qhov kev txiav txim ntawm cov ntaub ntawv. Kuj hu ua non-clustering index