BOOL Boolean type

1.BOOL data type, is a data type that represents a non-true or FALSE, a variable of type Boolean only
Yes and no two values. Yes table The expression result is true and no indicates that the result of the expression is false.

2. In the C language, it is believed that 0 is true.

3. In the branch statement, the bool value is often used to judge whether an if statement or an else statement is executed
(You will learn below).

4. In the loop structure, the bool value is often used to judge whether the loop should be executed (the next lesson
Will learn).

Precautions
#define YES 1
#define NO 0
When the computer is recognized, yes is replaced by 1,no instead of 0.

BOOL Boolean type