|
 |
 |
 |
 |
 |
 |
 |
 |
 |
4.7.3 list operations
-
+ concatenation
-
delete deletes one element from list, returns new list
-
insert inserts or appends a new element to list, returns a new list
- list_expression
[int_expression] is a list entry; the index 1 gives the first element.
Example:
list l1 = 1,"hello",list(-1,1); list l2 = list(1,2,3); l1 + l2; // one new list → [1]: → 1 → [2]: → hello → [3]: → [1]: → -1 → [2]: → 1 → [4]: → 1 → [5]: → 2 → [6]: → 3 list l3 =_; l1,l2; // two lists → [1]: → 1 → [2]: → hello → [3]: → [1]: → -1 → [2]: → 1 → [1]: → 1 → [2]: → 2 → [3]: → 3 l2[2]; → 2 |