C # Basic Grammar review-using decision statements

If statement:

An expression in an If statement must be placed in a pair of parentheses, and the expression must be a Boolean expression.

Compare Time Type variables:

Using the Compare method in a DateTime class

Switch statement:

You can use switch statements only for basic data types, such as int and string

The case label must be a constant expression, such as 23, "23"

There is no statement between case labels that can omit break to reach passthrough, but if there is a statement then use the break statement, or it will be an error.

C # Basic Grammar review-using decision statements