If a Boolean variable is used in the expression, the integer value of 1 or 0 will be given according to the true value of the variable. Converts an integer variable into a Boolean variable. If the integer value is 0, its Boolean value is false. Conversely, if the integer value is non-zero, its Boolean value is true.
Boolean variables are usually used as flags at runtime, such as logic tests changing program flow.
Excellent speech of youth forum 1
Leaders and teachers:
(used when meeting in the afternoon) Good afternoon.
As a young head teacher