Ruby range class

The ruby language contains a type called the range class, which is a set of a range of some classes. Generally ".. "or "... "To define the range ,".. "indicates the value that contains the defined range ,"... "does not include the value at the end of the defined range.

To convert data in the range class to an array, you can use its member function to_a to implement

Include (x). If X is a data value in a range member variable, true is returned; otherwise, false is returned.

Min, returns the minimum value

Max, returns the maximum value

Reject, such as its name, removes some data from a range-class instance.

Each: traverses the member variables in each range class instance to facilitate various actions.