Video: CSV tus kws sau ntawv yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Tus hu CSV (Comma Separated Values) hom ntawv yog hom ntshuam thiab xa tawm ntau tshaj plaws rau cov ntawv nthuav qhia thiab cov ntaub ntawv. Cov csv ua module tus nyeem ntawv thiab tus kws sau ntawv khoom nyeem thiab sau ua ntu zus. Programmers kuj tau nyeem thiab sau cov ntaub ntawv hauv phau ntawv txhais lus siv cov chav kawm DictReader thiab DictWriter.
Hais txog qhov no, CSV cov ntaub ntawv piv txwv yog dab tsi?
CSV yog ib qho yooj yim hom ntaub ntawv siv los khaws cov ntaub ntawv tabular, xws li daim ntawv nthuav qhia lossis cov ntaub ntawv. Cov ntaub ntawv hauv CSV hom ntawv tuaj yeem raug xa tawm mus rau thiab xa tawm los ntawm cov haujlwm uas khaws cov ntaub ntawv hauv cov ntxhuav, xws li Microsoft Excel lossis OpenOffice Calc. Rau piv txwv , cia peb hais tias koj muaj ib daim ntawv nthuav qhia uas muaj cov ntaub ntawv hauv qab no.
Ib sab saum toj no, kuv yuav saib cov ntaub ntawv CSV li cas? Koj tuaj yeem qhib tau CSV cov ntaub ntawv nyob rau hauv cov kev pab cuam spreadsheet, uas ua rau lawv yooj yim rau nyeem . Piv txwv li, yog tias koj muaj Microsoft Excel nruab rau hauv koj lub computer, koj tuaj yeem nyem ob npaug rau. csv ua qhib nws hauv Excel los ntawm lub neej ntawd. Yog tias nws tsis qhib hauv Excel, koj tuaj yeem nyem rau ntawm qhov CSV cov ntaub ntawv thiab xaiv Qhib Nrog> Excel.
Ib yam li ntawd, koj tuaj yeem nug, CSV tus nyeem ntawv rov qab li cas?
Cov csv ua . nyeem ntawv () txoj kev rov qab los a nyeem ntawv khoom uas iterate hla kab hauv qhov muab CSV ntaub ntawv. Cov lej. csv ua cov ntaub ntawv muaj cov lej.
csv file hauv Python yog dab tsi?
Python muaj lub tsev qiv ntawv loj ntawm modules uas suav nrog nws qhov kev faib tawm. Cov csv ua module muab cov Python programmer muaj peev xwm parse CSV (Comma Separated Values) cov ntaub ntawv . A CSV cov ntaub ntawv yog tib neeg nyeem ntawv ntaub ntawv qhov twg txhua kab muaj ib tug xov tooj ntawm teb, sib cais los ntawm commas los yog lwm yam delimiter.
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