Video: CSV Reader () rov qab li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov csv ua . tus nyeem () 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.
Ib yam li ntawd, CSV nyeem ntawv ua dab tsi?
Tus hu CSV (Comma Separated Values) hom ntawv yog feem ntau ntshuam thiab export hom ntawv rau spreadsheets thiab databases. Cov csv ua module cov nyeem ntawv thiab sau cov khoom nyeem thiab sau cov kab ke. Programmers ua tau kuj nyeem thiab sau cov ntaub ntawv hauv phau ntawv txhais lus siv cov chav kawm DictReader thiab DictWriter.
Ib yam li ntawd, kuv yuav sau li cas rau cov ntaub ntawv csv? Tsim ib tug CSV cov ntaub ntawv nrog cov ntawv nyeem, ua ntej xaiv koj nyiam cov ntawv nyeem, xws li Notepad lossis vim, thiab qhib qhov tshiab ntaub ntawv . Tom qab ntawd nkag mus rau cov ntawv nyeem cov ntaub ntawv koj xav tau ntaub ntawv kom muaj, cais txhua tus nqi nrog tus lej cim thiab txhua kab nrog kab tshiab.
Tsis tas li, kuv yuav saib cov ntaub ntawv csv hauv Python li cas?
Nyeem ntawv CSV cov ntaub ntawv Nrog csv ua Nyeem ntawv los ntawm a CSV cov ntaub ntawv yog ua tiav siv cov khoom nyeem ntawv. Cov CSV cov ntaub ntawv qhib ua ntawv ntaub ntawv nrog Python cov built-in open() muaj nuj nqi, uas rov qab a ntaub ntawv khoom. Qhov no yog tom qab ntawd dhau mus rau tus nyeem ntawv, uas ua qhov hnyav nqa.
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.
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