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Lära Looking Inside the Strings | Strings
Python Data Types
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Python Data Types

Python Data Types

1. Numeric Types
2. Boolean Type
3. Strings

book
Looking Inside the Strings

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.

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# Accessing string characters string = 'Hello, World' print('string = ', string) # Accessing the first character print(f'The first character is "{string[0]}"') # Accessing the last character print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Uppgift

Swipe to start coding

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

Lösning

Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 3. Kapitel 3
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book
Looking Inside the Strings

We can use indexing to get a specific character from a string or if we need to get a range of characters, then we use slices. It is important to note that the value of the index must be an integer. In Python, indexing starts from 0. If we try to access the string item outside the range then we will get an error Index Error. In Python there is also the possibility of negative indexing, in this case -1 is the index of the last element, -2 is the penultimate one, and so on.

12345678910
# Accessing string characters string = 'Hello, World' print('string = ', string) # Accessing the first character print(f'The first character is "{string[0]}"') # Accessing the last character print(f'The last character is "{string[-1]}"')
copy

Ending index is up to but not including.

Indexing starts from 0.

Uppgift

Swipe to start coding

You have such string watermelon. You have to get such characters: n, m, l, a. Use only positive indexing.

Lösning

Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 3. Kapitel 3
Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Vi beklagar att något gick fel. Vad hände?
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