kode python

Bagaimana Anda mengekstrak bagian dari string dengan python?

Diberi string dan dua substring, tulis program Python untuk mengekstrak string di antara dua substring yang ditemukan.  

Contoh

Memasukkan. test_str = “Gfg terbaik untuk Geeks dan CS”, sub1 = “adalah”, sub2 = “dan”

Keluaran. terbaik untuk geek

Penjelasan. terbaik untuk Geeks adalah antara is dan 'and'

Memasukkan. test_str = “Gfg terbaik untuk Geeks dan CS”, sub1 = “untuk”, sub2 = “dan”

Keluaran. geek

Penjelasan. geeks adalah antara untuk dan 'dan'

Menggunakan index() + loop untuk mengekstrak string antara dua substring

Dalam hal ini, kita mendapatkan indeks dari kedua substring menggunakan index(), lalu sebuah loop digunakan untuk mengulang dalam indeks untuk menemukan string yang diperlukan di antara substring tersebut

Python3




# Python3 code to demonstrate working

# of Extract string between 2 substrings

# Using loop + index()

 

# initializing string

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 1

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _6

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _6

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 9 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 1The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 ________30______3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6________30______7

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 # Python3 code to demonstrate working3

 

# Python3 code to demonstrate working_4

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4# Python3 code to demonstrate working7 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 # Python3 code to demonstrate working9

Keluaran

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks

Menggunakan index() + string slicing untuk mengekstrak string antara dua substring

Mirip dengan metode di atas, hanya tugas pemotongan dilakukan menggunakan pemotongan string untuk memberikan solusi yang lebih ringkas.  

Python3




# Python3 code to demonstrate working

# of Extract string between 2 substrings

# of Extract string between 2 substrings_2

 

# initializing string

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 1

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _6

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

 

# initializing string_8

# initializing string_9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 test_str2The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6test_str8

 

# Python3 code to demonstrate working_4

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4# Python3 code to demonstrate working7 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 # Python3 code to demonstrate working9

Keluaran

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks

Menggunakan find()+ string slicing untuk mengekstraksi string di antara dua substring

metode find() mengembalikan posisi string yang diteruskan sebagai argumen atau mengembalikan -1. Akhirnya potong string dengan posisi

Python3




# Python3 code to demonstrate working

# of Extract string between 2 substrings

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _07

 

# initializing string

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 1

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _6

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 29

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 32

 

# initializing string_8

# initializing string_9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 test_str2The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6test_str8

 

# Python3 code to demonstrate working_4

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4# Python3 code to demonstrate working7 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 # Python3 code to demonstrate working9

Keluaran

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks

Menggunakan replace() dan split() untuk mengekstrak string antara dua substring

Di sini kita menggunakan penggantian dan pemisahan string asli sampai kita mendapatkan substring yang diinginkan di pojok dan kemudian mengekstraknya

Python3




# Python3 code to demonstrate working

# of Extract string between 2 substrings

 

# initializing string

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 1

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 7The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 8

 

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks _9

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 2

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 5

 

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 72The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 73The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 74

test_strThe original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 77The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 73The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 74

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 80The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 82The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 73The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 74

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 0The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 87The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 89

 

# Python3 code to demonstrate working_4

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 3The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 4# Python3 code to demonstrate working7 The original string is : Gfg is best for geeks and CS The extracted string : best for geeks 6 # Python3 code to demonstrate working9

Keluaran

The original string is : Gfg is best for geeks and CS The extracted string : best for geeks

Menggunakan regex untuk mengekstrak string antara dua substring

Di sini kita menggunakan pustaka bawaan i. e. kami menggunakan regex untuk mengekstrak string antara dua substring

Bagaimana Anda mengekstrak bagian tertentu dari sebuah string?

Metode substr() mengekstrak bagian dari string. Metode substr() dimulai pada posisi tertentu, dan mengembalikan sejumlah karakter tertentu. Metode substr() tidak mengubah string asli. Untuk mengekstrak karakter dari akhir string, gunakan posisi awal negatif.

Bagaimana cara mengekstrak kata tertentu dari string dengan Python?

Metode #1. Menggunakan split() .

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