What Is a Variable?
Variables in programming are abstract local storages for values. In the previous section, you calculated a 5-year revenue. What if we need this exact same number in the future? Recalculating seems a bit irrational.
To refer to a specific value in the future, we need to use a particular name for the variable. Use the equality sign = for assigning value to a variable. For example, you can assign the value 2022 to the variable year, and then output it or perform any arithmetic operation using its name.
9
1
2
3
4
5
6
# Create a variable
year = 2020
# Output its value
print(year)
# Perform an addition
print(year + 10)
123456# Create a variable year = 2020 # Output its value print(year) # Perform an addition print(year + 10)
This is the ninth chapter of the course. Create a variable chapter with a value of 9.
To pick up a draggable item, press the space bar.
While dragging, use the arrow keys to move the item.
Press space again to drop the item in its new position, or press escape to cancel.
Var allt tydligt?
Tack för dina kommentarer!
Avsnitt 2. Kapitel 1
Fråga AI
Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal
