Bagaimana cara mengubah satu-satunya kejadian kedua dari string di python?

Saat menggunakan metode phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 Python, Anda dapat mengganti setiap instance dari satu karakter tertentu dengan yang baru. Anda bahkan dapat mengganti seluruh rangkaian teks dengan baris teks baru yang Anda tentukan

Metode phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 mengembalikan salinan string. Ini berarti bahwa substring lama tetap sama, tetapi salinan baru dibuat – dengan semua teks lama telah diganti dengan teks baru

Bagaimana cara kerja metode Python phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0?

Sintaks untuk metode phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 terlihat seperti ini

string.replace(old_text, new_text, count) _

Mari kita hancurkan

• phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 6 adalah parameter wajib pertama yang diterima phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0. Itu adalah karakter atau teks lama yang ingin Anda ganti. Lampirkan ini dalam tanda kutip
• phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 8 adalah parameter wajib kedua yang diterima phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0. Ini adalah karakter atau teks baru yang ingin Anda ganti dengan karakter/teks lama. Parameter ini juga perlu dilampirkan dalam tanda kutip
• phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 0 adalah parameter ketiga opsional yang diterima phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0. Secara default, phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 akan menggantikan semua contoh substring. Namun, Anda dapat menggunakan phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go _0 untuk menentukan jumlah kemunculan yang ingin Anda ganti

Python phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 Contoh Kode Metode

Cara Mengganti Semua Contoh Karakter Tunggal

Untuk mengubah semua instance dari satu karakter, Anda akan melakukan hal berikut

phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga

Pada contoh di atas, setiap kata yang mengandung karakter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 5 diganti dengan karakter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 6

Dalam contoh itu ada empat contoh karakter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 5. Secara khusus, itu ditemukan dalam kata-kata phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go _8, phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 9, phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go 0, dan phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go 1

Bagaimana jika Anda hanya ingin mengubah dua kata, seperti phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 8 dan phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go _9, mengandung phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 6 bukan phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 5?

Cara Mengganti Hanya Sejumlah Instance dari Karakter Tunggal

Untuk mengubah hanya dua contoh dari satu karakter, Anda akan menggunakan parameter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 0 dan mengaturnya menjadi dua

phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go _

Jika Anda hanya ingin mengubah instance pertama dari satu karakter, Anda akan menyetel parameter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 0 menjadi satu

phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go

Cara Mengganti Semua Contoh String

Untuk mengubah lebih dari satu karakter, prosesnya terlihat serupa

phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind.

Pada contoh di atas, kata phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go _8 diganti dengan kata phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go 9

Cara Mengganti Hanya Sejumlah Instance tertentu dari sebuah String

Jika Anda hanya ingin mengubah instance pertama dari phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go 8 menjadi phrase = "I like to learn coding on the go" # replace only the first instance of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 1 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn coding on the go 9, Anda akan menggunakan parameter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go 0 dan menyetelnya ke satu

phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun.

Cara Melakukan Substitusi Substring Case-Insensitive dengan Python

Mari kita lihat contoh lain

phrase = "I am learning Ruby. I really enjoy the ruby programming language!" #replace the text "Ruby" with "Python" substituted_text = phrase.replace("Ruby", "Python") print(substituted_text) #output #I am learning Python. I really enjoy the ruby programming language!

Dalam hal ini, yang benar-benar ingin saya lakukan adalah mengganti semua contoh kata phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 3 dengan phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 4

Namun, ada kata phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. _5 dengan huruf kecil phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 6, yang juga ingin saya ubah

Karena huruf pertama menggunakan huruf kecil, bukan huruf besar seperti yang saya tentukan dengan phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 3, tetap sama dan tidak berubah menjadi phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 4

Metode phrase = "I like to learn coding on the go" # replace all instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a" ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading an the ga 0 peka terhadap huruf besar-kecil, dan karenanya melakukan substitusi substring peka huruf besar-kecil

Untuk melakukan substitusi substring case-insensitive Anda harus melakukan sesuatu yang berbeda

Anda perlu menggunakan fungsi phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. _0 dan menggunakan flag phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. 1

Untuk menggunakan phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. _0 Anda harus

• Gunakan modul phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. _3, melalui phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. 4
• Tentukan ekspresi reguler phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. 5
• Sebutkan dengan apa yang ingin Anda phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. 6 polanya
• Sebutkan phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. 7 tempat Anda ingin melakukan operasi ini
• Opsional, tentukan parameter phrase = "I like to learn coding on the go" # replace only the first two instances of 'o' with 'a' substituted_phrase = phrase.replace("o", "a", 2 ) print(phrase) print(substituted_phrase) #output #I like to learn coding on the go #I like ta learn cading on the go _0 untuk membuat penggantian lebih tepat dan tentukan jumlah maksimum penggantian yang ingin Anda lakukan
• Bendera phrase = "The sun is strong today. I don't really like sun." #replace only the first instance of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind", 1) print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like sun. _1 memberi tahu ekspresi reguler untuk melakukan pencocokan case-insensitive

Jadi, secara keseluruhan sintaksnya terlihat seperti ini

import re re.sub(pattern, replace, string, count, flags)

Mengambil contoh dari sebelumnya

phrase = "I am learning Ruby. I really enjoy the ruby programming language!"

Beginilah cara saya mengganti phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. _3 dan phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 5 dengan phrase = "The sun is strong today. I don't really like sun." #replace all instances of the word 'sun' with 'wind' substituted_phrase = phrase.replace("sun", "wind") print(phrase) print(substituted_phrase) #output #The sun is strong today. I don't really like sun. #The wind is strong today. I don't really like wind. 4

import re phrase = "I am learning Ruby. I really enjoy the ruby programming language!" phrase = re.sub("Ruby","Python", phrase, flags=re.IGNORECASE) print(phrase) #output #I am learning Python. I really enjoy the Python programming language!

Membungkus

Dan begitulah - Anda sekarang tahu dasar-dasar substitusi substring. Semoga panduan ini bermanfaat bagi Anda

Untuk mempelajari lebih lanjut tentang Python, lihat Komputasi Ilmiah freeCodeCamp dengan Sertifikasi Python

Anda akan mulai dari dasar dan belajar dengan cara yang interaktif dan ramah bagi pemula. Anda juga akan membangun lima proyek pada akhirnya untuk dipraktikkan dan membantu memperkuat apa yang Anda pelajari

Terima kasih telah membaca dan selamat membuat kode

IKLAN

IKLAN

IKLAN

IKLAN

Dionysia Lemonaki

Mempelajari sesuatu yang baru setiap hari dan menulis tentangnya

Jika artikel ini bermanfaat, tweetlah

Belajar kode secara gratis. Kurikulum open source freeCodeCamp telah membantu lebih dari 40.000 orang mendapatkan pekerjaan sebagai pengembang. Memulai

Bagaimana cara mengganti kemunculan karakter kedua dalam string Python?

Bagaimana Anda mengganti kejadian tertentu dengan Python?

Bagaimana Anda mengganti hanya satu kemunculan string dengan Python?

Bagaimana Anda mendapatkan kejadian kedua dengan Python?