Returns the element at index
index in the list stored at
The index is zero-based, so
0 means the first element,
1 the second element
and so on.
Negative indices can be used to designate elements starting at the tail of the
-1 means the last element,
-2 means the penultimate and so forth.
When the value at
key is not a list, an error is returned.
多行字符串: the requested element, or
index is out of range.
(integer) 1redis> LPUSH mylist "Hello"
(integer) 2redis> LINDEX mylist 0
"Hello"redis> LINDEX mylist -1
"World"redis> LINDEX mylist 3