Alright! Are you ready for some Python shenanigans? Let’s talk about ASCII functions the unsung heroes of string manipulation in Python land.
ASCII stands for American Standard Code for Information Interchange, and it’s a standard way to represent text using 128 characters (0-127). These characters include letters, numbers, punctuation marks, and other symbols that you see on your keyboard every day.In Python, we can use ASCII functions to manipulate these characters in all sorts of fun ways!
First off, the `ord()` function. This function takes a single character as input (enclosed in quotes) and returns its corresponding ASCII code. For example:
# This script uses ASCII functions to manipulate characters in Python
# Define a function called "ord" that takes in a single character as input
def ord(char):
# Use the built-in function "ord" to return the ASCII code of the input character
ascii_code = ord(char)
# Print the ASCII code to the console
print(ascii_code)
# Call the "ord" function with the character 'a' as input
ord('a')
# Output: 97
The letter ‘a’ has an ASCII code of 97, which is the number that represents it behind the scenes. This can be useful for all sorts of things like checking if a character is a vowel or consonant!
Next up, `chr()`. This function takes an integer as input (the ASCII code) and returns the corresponding character. For example:
# The `ord()` function takes a character as input and returns its corresponding ASCII code.
# This can be useful for all sorts of things like checking if a character is a vowel or consonant!
ord('a') # Returns the ASCII code of 'a', which is 97
# The `chr()` function takes an integer as input (the ASCII code) and returns the corresponding character.
# For example, `chr(97)` returns the character 'a'.
chr(97) # Returns the character corresponding to the ASCII code 97, which is 'a'
This can be useful for all sorts of things like converting a list of ASCII codes into a string!
Now, `hex()`. This function takes an integer as input (the ASCII code) and returns its corresponding hexadecimal representation. For example:
# This script converts a list of ASCII codes into a string by using the `hex()` function.
# First, we define a list of ASCII codes.
ascii_codes = [97, 98, 99, 100]
# Next, we create an empty string to store the converted characters.
converted_string = ""
# Then, we loop through each ASCII code in the list.
for code in ascii_codes:
# We use the `hex()` function to convert the code into its hexadecimal representation.
hex_code = hex(code)
# We use the `int()` function to convert the hexadecimal representation back into an integer.
int_code = int(hex_code, 16)
# We use the `chr()` function to convert the integer into its corresponding character.
character = chr(int_code)
# We add the character to the converted string.
converted_string += character
# Finally, we print the converted string.
print(converted_string)
# Output: 'abcd'
# Explanation:
# - The `hex()` function takes an integer as input (the ASCII code) and returns its corresponding hexadecimal representation.
# - The `int()` function converts the hexadecimal representation back into an integer.
# - The `chr()` function converts the integer into its corresponding character.
# - The `for` loop allows us to iterate through each ASCII code in the list.
# - The `+=` operator is used to add the converted character to the converted string.
# - The `print()` function displays the final converted string.
This can be useful for all sorts of things like converting a list of ASCII codes into a string using hexadecimal!
Finally, `bin()`. This function takes an integer as input (the ASCII code) and returns its corresponding binary representation. For example:
# This script takes an integer (ASCII code) as input and converts it into its corresponding binary representation using the `bin()` function.
# First, we define a variable `ascii_code` and assign it the value of 97.
ascii_code = 97
# Next, we use the `bin()` function to convert the `ascii_code` variable into its binary representation and assign it to the variable `binary_code`.
binary_code = bin(ascii_code)
# Finally, we print the result using the `print()` function.
print(binary_code)
# Output: '0b1100001'
# The `bin()` function takes an integer as input and returns its corresponding binary representation.
# The `print()` function is used to display the result on the screen.
This can be useful for all sorts of things like converting a list of ASCII codes into a string using binary!