🔠Strings

Python Strings for Beginners 🐍🔤

Creation:

• Example: my_string = 'Hello, World!' or my_string = "Hello, World!"

Accessing Characters:

• You can access individual characters within a string using indexing, starting from 0.

  • Example: print(my_string[0]) would output 'H'.

String Concatenation:

• You can concatenate (join) two or more strings using the + operator.

  • Example: greeting = 'Hello' + ' ' + 'World!' would result in 'Hello World!'.

String Length:

• The len() function can be used to determine the length (number of characters) of a string.

  • Example: print(len(my_string)) would output the length of the string.

String Slicing:

• You can extract a substring from a string using slicing, specifying the start and end indices.

  • Example: substring = my_string[7:12] would extract the substring 'World'.

String Methods:

• Python provides various built-in methods to manipulate and transform strings.

  • Examples include upper(), lower(), strip(), split(), replace(), find(), count(), and more.

  • Example: print(my_string.upper()) would output 'HELLO, WORLD!'.

String Formatting:

• String formatting allows you to embed values within a string. This can be done using the % operator or the format() method.

  • Example

• name = 'Alice'
  age = 30
  print("My name is %s and I'm %d years old." % (name, age))
  # Output: My name is Alice, and I'm 30 years old.

Escape Characters:

• Strings can include special characters using escape sequences. Common escape characters include (newline), (tab), \\ (backslash), etc.

escaped_string = "This is a multi-line string.\nIt spans multiple lines using the escape character."