How to merge two lists into a list in Python without a for statement

1, add

2, using the Extend method of the list, L1.extend (L2), the method adds all the elements of the parameter L2 to the tail of the L1, for example:

3, with sectioning (Slice) operation, L1[len (L1): Len (L1)] = L2 and the above method equivalent,

But the slicing method is more flexible and can be inserted into the head, or any other part, and can be added to the middle.

How to merge two lists into a list in Python without a for statement