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Video: Koj pom qhov Performance index ntawm ib qho array hauv Python li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Python muaj ib txoj kev mus nrhiav ib tug keeb hauv ib array , npe qhov ntsuas (). Yog koj yuav khiav x. qhov ntsuas ('p') koj yuav tau xoom raws li cov zis (ua ntej qhov ntsuas ).
Tsis tas li cov lus nug yog, koj puas pom qhov ntsuas ntawm ib lub caij hauv Python?
Cov qhov ntsuas () method searches ib keeb nyob rau hauv daim ntawv thiab xa rov qab nws qhov ntsuas . Hauv cov ntsiab lus yooj yim, lub qhov ntsuas () txoj kev pom qhov muab keeb hauv ib daim ntawv teev npe thiab rov qab nws txoj haujlwm. Yog ib yam keeb yog tam sim no ntau tshaj ib zaug, txoj kev rov qab cov qhov ntsuas ntawm thawj qhov tshwm sim ntawm lub keeb.
Tom qab ntawd, lo lus nug yog, Kuv yuav ua li cas ntsuas qhov Numpy array? Indexing tuaj yeem ua tiav hauv numpy los ntawm kev siv ib array as ib qhov ntsuas . Nyob rau hauv cov ntaub ntawv ntawm daim, ib tug saib los yog ntiav daim ntawv ntawm lub array yog rov qab tab sis nyob rau hauv index array daim ntawv qub array rov qab los. Numpy arrays tuaj yeem yog ua indexed nrog lwm tus arrays los yog lwm yam kab ke nrog kev zam ntawm tuples.
Kuj paub, koj pom qhov Performance index ntawm ib lub caij hauv cov npe Python li cas?
qhov ntsuas () yog ib txoj haujlwm inbuilt hauv Python , uas nrhiav rau muab keeb los ntawm pib ntawm lub lis thiab rov qab qis tshaj qhov ntsuas qhov twg keeb tshwm. Parameters: keeb - Cov keeb nws qis tshaj qhov ntsuas yuav rov qab los. pib (Yeem) - Txoj hauj lwm los ntawm qhov chaw tshawb nrhiav pib.
Yuav ua li cas koj iterate los ntawm qhov Performance index hauv Python?
Nws tsis tshua muaj qhov xav tau indexes hauv Python
- Yog tias koj xav tau voj ntau cov npe tib lub sijhawm, siv zip.
- Yog tias koj tsuas xav tau voj hla ib daim ntawv teev npe tsuas yog siv lub voj rau-hauv.
- Yog tias koj xav tau voj hla ib daim ntawv teev npe thiab koj xav tau cov khoom lag luam indexes, siv enumerate.
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