[Command] lrange key start end: Get the value from start to end in the linked list, start starts from 0, like the following STATION1, the position of D is 0, the position of C is 1, and start and end can also be negative numbers. The position of the first-to-last element is -1, the second-to-last element is -2, and so on
so
[Key points] lrange key 0 -1 is to get from the first element to the last element, that is, to get all the elements, this command is often used.
[Example] If there are the following two lists
key value
STATION1 [D,C,B,A]
STATION2 [a,b,c,d]
Want to get all elements of STATION1
lrange STATION1 0 3
lrange STATION1 0 -1
Want to get the 2nd to 3rd elements of STATION2, ie "b", "c"
lrange STATION2 1 2