Introduction - If you have any usage issues, please Google them yourself
(1) the definition of multi-dimensional array of type integer, the dimension subscript is any integer beginning in integers (2) subscript variable assignment, the implementation of subscript range checks (3) the same type of array assignment (4) sub-array assignment, for example, a [1 .. n] = a [2 .. n+1] a [2 .. 4] [3 .. 5] = b [1 .. 3] [2 .. 4] (5) determine the size of the array.