2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Qhov "'str' khoom tsis txhawb nqa khoom" yuam kev qhia koj tias koj tab tom sim hloov tus nqi ntawm txoj hlua uas twb muaj lawm. Tam sim no koj npaj tau los daws qhov yuam kev Python zoo li tus kws tshaj lij.
Puas sau cov khoom txhawb nqa?
Thaum koj tuaj yeem hloov qhov tseem ceeb hauv daim ntawv teev npe, cov txiaj ntsig hauv tuple hloov tsis tau. Tsis tas li ntawd, tuples tau khaws cia rau hauv kab lus thaum cov npe tau tshaj tawm ntawm cov square brackets. Vim tias koj tsis tuaj yeem hloov tus nqi hauv ib tuple, khoom xa tuaj tsis ua haujlwm.
Yuav ua li cas rau khoom hauv Python?
Tus python yuam kev TypeError: 'str' khoom tsis txhawb cov khoom xa tawm tshwm sim thaum koj sim hloov lossis hloov tus cwj pwm hauv txoj hlua siv txoj haujlwm tus neeg teb xov tooj. Txoj hlua yog yam khoom uas hloov tsis tau uas hloov tsis tau.
Koj muab ib yam khoom rau ib txoj hlua hauv Python li cas?
Tau tsim ib txoj hlua, muab cov kab ke ntawm cov cim hauv ib nqe lus, ob nqe lus, lossis triple quotes thiab muab nws rau qhov sib txawv. Koj tuaj yeem saib seb qhov hloov pauv ua haujlwm li cas hauv Python hauv Python variables qhia. Piv txwv li, koj tuaj yeem muab tus cim 'a' rau qhov sib txawv single_quote_character.
Kuv yuav kho li cas str khoom tsis txhawb nqa khoom?
Koj yuav tsum tsim txoj hlua tshiab raws li cov ntsiab lus ntawm tus qub yog tias koj xav hloov txoj hlua. Qhov "'str' khoom tsis txhawb cov khoom assignment" yuam kev qhia rau kojuas koj sim hloov tus nqi ntawm txoj hlua uas twb muaj lawm.
Pom zoo:
Txoj kev txhawb siab txhawb nqa los ntawm qhov twg?
Qhov kev txhawb nqa kev txhawb nqa suav nrog Txoj Cai thaum ntxov (1738–1800, hauv tebchaws Askiv thiab Tebchaws Meskas), Shaker txav (los ntawm 1774, hauv Tebchaws Meskas), Dab Kev seev cev ntawm North American Plains Indians (1888-90), Sudanese Mahdists (los ntawm lub xyoo pua 19th), lub Boxer txav (1898-1900, Tuam Tshoj) … Dab tsi ua rau kev txhawb nqa kev txhawb siab?
Tus neeg txhawb nqa puas tuaj yeem thim nws qhov kev txhawb nqa?
Yog tias daim ntawv thov kev txhawb nqa tseem tsis tau xa lossis tseem tos, thov kom thim rov qab. Qhov no tuaj yeem ua tau los ntawm kev mus xyuas qhov chaw nyob ze ntawm US Citizenship and Immigration Services (USCIS) los yog los ntawm ceeb toom rau lub koom haum sau ntawv ntawm koj qhov kev xavkom thim koj qhov kev txhawb nqa.
Dab tsi yog qhov kev txhawb nqa uas tsis muaj kev txhawb nqa?
Ib qho tsis tau txais kev txhawb nqa ADR yog ib daim ntawv lees paub Asmeskas tso nyiaj tawm los ntawm lub txhab nyiaj tso nyiaj yam tsis muaj kev koom tes, kev koom tes, lossis kev tso cai los ntawm tuam txhab txawv teb chaws. Cov kev nyab xeeb no pauv ntawm kev lag luam hauv khw muag khoom ntau dua li ntawm kev sib pauv khoom hauv Asmeskas.
Nws puas muaj kev nyab xeeb rau kev yuav khoom tsis muaj kev txhawb nqa?
Unsponsored ADRs nthuav tawm qhov kev pheej hmoo ntawm cov neeg ua lag luam vim lawv tsis raug txiav txim siab los ntawm tus tshaj tawm cov khoom lag luam thiab vim li ntawd lawv yog tsuas yog kev ntseeg siab li qhov kev tshaj tawm broker. ADR unsponsored txhais li cas?
Kev txhawb nqa menyuam puas tuaj yeem kuaj xyuas kev txhawb nqa?
Koj qhov kev txhawb nqa thib peb tsis tuaj yeem txeeb tsis tau los them nyiaj yug menyuam. Raws li Txoj Cai CARES txij thaum Lub Peb Hlis 2020, koj thawj qhov kev kuaj xyuas tuaj yeem txeeb los ntawm lub xeev thiab tsoomfwv cov koomhaum los them rau yav dhau los - them nyiaj yug menyuam.
