Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Lära Searching a String | Strings
Python Data Types
course content

Kursinnehåll

Python Data Types

Python Data Types

1. Numeric Types
Numeric TypesIntegersFloating Point NumbersComplex NumbersChallengeAddition SubtractionMultiplicationDivision
2. Boolean Type
What is a Boolean Data Type?Python bool() FunctionKeywords: and, or, notChallenge 1Challenge 2Challenge 3Challenge 4
3. Strings
What is a String?Challenge 1 Looking Inside the Strings ChallengeString Slicing 1/2 String Slicing 2/2Negative IndexingStrings Have Length Check String Searching a String

book
Searching a String

We also have the ability to search for substrings in strings using find() method. This method returns the index of the first occurrence of the substring. If there are no lines, then the function will return -1.


              
1234

            
string = 'Jackfruit, Coconut'
position_1 = string.find('C')
position_2 = string.find('c')
print(f'The position of "C" is {position_1}, and the position of "c" is {position_2}')
copy

Don't forget Python is case sensitive. So, the first occurrence of the C is 11, and the first occurrence of the c is 2. Since C it is not the same as c.

Uppgift

Swipe to start coding

You have such a string

string = "apple, banana, cherry, orange"

You have to find out the index of the first occurence of such substrings as:

a, h, y, Y.

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 10
toggle bottom row

book
Searching a String

We also have the ability to search for substrings in strings using find() method. This method returns the index of the first occurrence of the substring. If there are no lines, then the function will return -1.


              
1234

            
string = 'Jackfruit, Coconut'
position_1 = string.find('C')
position_2 = string.find('c')
print(f'The position of "C" is {position_1}, and the position of "c" is {position_2}')
copy

Don't forget Python is case sensitive. So, the first occurrence of the C is 11, and the first occurrence of the c is 2. Since C it is not the same as c.

Uppgift

Swipe to start coding

You have such a string

string = "apple, banana, cherry, orange"

You have to find out the index of the first occurence of such substrings as:

a, h, y, Y.

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 10
Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Vi beklagar att något gick fel. Vad hände?
some-alt