Индекс Python: пошаговое руководство

–ú–µ—Ç–æ–¥ Python index () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –ø–æ–∑–∏—Ü–∏—é –∏–Ω–¥–µ–∫—Å–∞, –≤ –∫–æ—Ç–æ—Ä–æ–π —ç–ª–µ–º–µ–Ω—Ç –Ω–∞—Ö–æ–¥–∏—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ. index () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –Ω–∞–∏–º–µ–Ω—å—à–∏–π —Ä–µ–∑—É–ª—å—Ç–∏—Ä—É—é—â–∏–π –∏–Ω–¥–µ–∫—Å –¥–ª—è —ç–ª–µ–º–µ–Ω—Ç–∞. ValueError –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç—Å—è, –µ—Å–ª–∏ —É–∫–∞–∑–∞–Ω–Ω—ã–π —ç–ª–µ–º–µ–Ω—Ç –¥–µ–π—Å—Ç–≤–∏—Ç–µ–ª—å–Ω–æ —Å—É—â–µ—Å—Ç–≤—É–µ—Ç –≤ —Å–ø–∏—Å–∫–µ.

–í–æ–∑–º–æ–∂–Ω–æ, –≤—ã –∑–∞—Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –∏–Ω–¥–µ–∫—Å –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω–æ–≥–æ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ –≤–∞—à–∏—Ö –¥–∞–Ω–Ω—ã—Ö. –ù–∞–ø—Ä–∏–º–µ—Ä, –ø—Ä–µ–¥–ø–æ–ª–æ–∂–∏–º, —á—Ç–æ —É –≤–∞—Å –µ—Å—Ç—å —Å–ø–∏—Å–æ–∫ –∏–∑ –¥–µ—Å—è—Ç–∏ –ª—É—á—à–∏—Ö —Ö–ª–µ–±–æ–±—É–ª–æ—á–Ω—ã—Ö –∏–∑–¥–µ–ª–∏–π, –ø—Ä–æ–¥–∞–≤–∞–µ–º—ã—Ö –≤ –ø–µ–∫–∞—Ä–Ω–µ. –í—ã –º–æ–∂–µ—Ç–µ —É–∑–Ω–∞—Ç—å –ø–æ–∑–∏—Ü–∏—é Banana Cake –≤ —ç—Ç–æ–º —Å–ø–∏—Å–∫–µ.

–í–æ—Ç –≥–¥–µ –ø—Ä–∏–≥–æ–¥–∏—Ç—Å—è –º–µ—Ç–æ–¥ Python index (). index () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –∑–Ω–∞—á–µ–Ω–∏–µ –∏–Ω–¥–µ–∫—Å–∞, –ø—Ä–∏ –∫–æ—Ç–æ—Ä–æ–º –∫–æ–Ω–∫—Ä–µ—Ç–Ω—ã–π —ç–ª–µ–º–µ–Ω—Ç –ø–æ—è–≤–ª—è–µ—Ç—Å—è –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ. –í —ç—Ç–æ–º —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–µ –º—ã –ø–æ–¥—Ä–æ–±–Ω–æ —Ä–∞—Å—Å–º–æ—Ç—Ä–∏–º –º–µ—Ç–æ–¥ index () —Å–æ —Å—Å—ã–ª–∫–æ–π –Ω–∞ –ø—Ä–∏–º–µ—Ä.

Python index () Method

–ú–µ—Ç–æ–¥ Python index () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –ø–æ–∑–∏—Ü–∏—é –∏–Ω–¥–µ–∫—Å–∞ —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å–∏–º–≤–æ–ª –∏–ª–∏ –¥–∏–∞–ø–∞–∑–æ–Ω —Å–∏–º–≤–æ–ª–æ–≤ –≤ —Å—Ç—Ä–æ–∫–µ. –≠—Ç–æ—Ç –º–µ—Ç–æ–¥ –ø—Ä–∏–Ω–∏–º–∞–µ—Ç –æ–¥–∏–Ω –∞—Ä–≥—É–º–µ–Ω—Ç: —ç–ª–µ–º–µ–Ω—Ç, –∫–æ—Ç–æ—Ä—ã–π –≤—ã —Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –≤ —Å–≤–æ–µ–º —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å—Ç—Ä–æ–∫–µ.

–ú–µ—Ç–æ–¥ index () –∏—Å–ø–æ–ª—å–∑—É–µ—Ç —Ç–æ—Ç –∂–µ —Å–∏–Ω—Ç–∞–∫—Å–∏—Å, –Ω–µ–∑–∞–≤–∏—Å–∏–º–æ –æ—Ç —Ç–æ–≥–æ, –∏—â–µ—Ç–µ –ª–∏ –≤—ã —ç–ª–µ–º–µ–Ω—Ç –≤ —Å–ø–∏—Å–æ–∫ –∏–ª–∏ —Å—Ç—Ä–æ–∫–∞. –≠—Ç–æ —Å–≤—è–∑–∞–Ω–æ —Å —Ç–µ–º, —á—Ç–æ —ç–ª–µ–º–µ–Ω—Ç—ã –∫–∞–∫ –≤ —Å–ø–∏—Å–∫–µ, —Ç–∞–∫ –∏ –≤ —Å—Ç—Ä–æ–∫–æ–≤–æ–º —Ç–∏–ø–µ –¥–∞–Ω–Ω—ã—Ö –∏–¥–µ–Ω—Ç–∏—Ñ–∏—Ü–∏—Ä—É—é—Ç—Å—è –Ω–æ–º–µ—Ä–∞–º–∏ –∏–Ω–¥–µ–∫—Å–∞.

–î–∞–≤–∞–π—Ç–µ –ø–æ—Å–º–æ—Ç—Ä–∏–º –Ω–∞ —Å–∏–Ω—Ç–∞–∫—Å–∏—Å –º–µ—Ç–æ–¥–∞ index ():

value_name.index (item, start_pos_end_pos)

–°—Ç—Ä–æ–∫–æ–≤—ã–π –º–µ—Ç–æ–¥ index () –ø—Ä–∏–Ω–∏–º–∞–µ—Ç —Ç—Ä–∏ –ø–∞—Ä–∞–º–µ—Ç—Ä–∞:

81% —É—á–∞—Å—Ç–Ω–∏–∫–æ–≤ –∑–∞—è–≤–∏–ª–∏, —á—Ç–æ, –ø–æ –∏—Ö –º–Ω–µ–Ω–∏—é, –±–æ–ª–µ–µ —É–≤–µ—Ä–µ–Ω—ã –≤ —Å–≤–æ–∏—Ö –ø–µ—Ä—Å–ø–µ–∫—Ç–∏–≤–∞—Ö —Ç—Ä—É–¥–æ—É—Å—Ç—Ä–æ–π—Å—Ç–≤–∞ –≤ —Å—Ñ–µ—Ä–µ –≤—ã—Å–æ–∫–∏—Ö —Ç–µ—Ö–Ω–æ–ª–æ–≥–∏–π –ø–æ—Å–ª–µ –ø–æ—Å–µ—â–µ–Ω–∏—è —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è. –ü—Ä–æ–π–¥–∏—Ç–µ –∫—É—Ä—Å –æ–±—É—á–µ–Ω–∏—è —Å–µ–≥–æ–¥–Ω—è.

–°—Ä–µ–¥–Ω–∏–π –≤—ã–ø—É—Å–∫–Ω–∏–∫ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –ø–æ—Ç—Ä–∞—Ç–∏–ª –º–µ–Ω–µ–µ —à–µ—Å—Ç–∏ –º–µ—Å—è—Ü–µ–≤ –Ω–∞ –ø–µ—Ä–µ—Ö–æ–¥–Ω—É—é –∫–∞—Ä—å–µ—Ä—É, –æ—Ç –Ω–∞—á–∞–ª–∞ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –¥–æ –ø–æ–∏—Å–∫–∞ —Å–≤–æ–µ–π –ø–µ—Ä–≤–æ–π —Ä–∞–±–æ—Ç—ã.

–ï—Å–ª–∏ –ø—Ä–µ–¥–º–µ—Ç, –¥–ª—è –∫–æ—Ç–æ—Ä–æ–≥–æ –≤—ã –Ω–µ –≤—Ö–æ–¥–∏—Ç –≤ –æ–∫–æ–Ω—á–∞—Ç–µ–ª—å–Ω—ã–π —Å–ø–∏—Å–æ–∫, –∏–Ω—Ç–µ—Ä–ø—Ä–µ—Ç–∞—Ç–æ—Ä –≤–µ—Ä–Ω–µ—Ç –æ—à–∏–±–∫—É Python ValueError.

index () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –ø–µ—Ä–≤—ã–π —ç–∫–∑–µ–º–ø–ª—è—Ä —ç–ª–µ–º–µ–Ω—Ç–∞ –≤ —Å–ø–∏—Å–∫–µ –∏–ª–∏ —Å–∏–º–≤–æ–ª –∏–ª–∏ —Ñ—Ä–∞–∑—É –≤ —Å—Ç—Ä–æ–∫–∞.

–ï—Å–ª–∏ –≤—ã —Ö–æ—Ç–∏—Ç–µ –Ω–∞–π—Ç–∏ –≤—Ç–æ—Ä–æ–π —ç–∫–∑–µ–º–ø–ª—è—Ä —ç–ª–µ–º–µ–Ω—Ç–∞ —Å–ø–∏—Å–∫–∞, —Å—Ç—Ä–æ–∫–æ–≤–æ–≥–æ —Å–∏–º–≤–æ–ª–∞ –∏–ª–∏ —Ñ—Ä–∞–∑—ã, –≤–∞–º –Ω—É–∂–Ω–æ –Ω–∞–π—Ç–∏ –ø–µ—Ä–≤—ã–π —ç–∫–∑–µ–º–ø–ª—è—Ä. –ó–∞—Ç–µ–º –≤—ã –º–æ–∂–µ—Ç–µ –Ω–∞—á–∞—Ç—å –ø–æ–∏—Å–∫ —Å —Å–∏–º–≤–æ–ª–∞ –ø–æ—Å–ª–µ –Ω–∞—á–∞–ª–∞ –ø–µ—Ä–≤–æ–≥–æ —ç–∫–∑–µ–º–ø–ª—è—Ä–∞. –≠—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ Python –Ω–µ –Ω–∞–π–¥–µ—Ç —ç–∫–∑–µ–º–ø–ª—è—Ä, –∫–æ—Ç–æ—Ä—ã–π –≤—ã —É–∂–µ –Ω–∞—à–ª–∏ —Å–Ω–æ–≤–∞.