We introduced some basic statements and structures in the Python programming language. Let’s quickly review them!
print(expression) statement is used to print output on the terminal.
- It will evaluate
expressionto a value, then display it to the screen.
- By default, it will add a newline to the end of the output.
- We can change that using the
endparameter, such as
print(expression, end="")to remove the newline.
The assignment statement, like
a = expression is used to create variables and store values in the variables.
- The variable must be on the left side, and the right side must be an expression that evaluates to a single value.
- If the variable does not exist, it is created. Otherwise, the current value of the variable is replaced by the new value.
- Variable names must begin with a letter or underscore, and may only contain letters, numbers, and underscores.
- Variable names beginning with an underscore have a special meaning, so we won’t use them right now.