list끼리 + 는 되지만 - 는 안된다? / append , extend 차이
>>> a= [1,2,3] >>> a.append(4) >>> a [1, 2, 3, 4] >>> a.extend([5,6]) >>> a [1, 2, 3, 4, 5, 6] >>> a.remove() Traceback (most recent call last): File "", line 1, in a.remove() TypeError: remove() takes exactly one argument (0 given) >>> >>> a.remove(4) >>> a [1, 2, 3, 5, 6] >>> b =[7,8] >>> a + b [1, 2, 3, 5, 6, 7, 8] >>> a.insert(3,4) >>> a [1, 2, 3, 4, 5, 6] >>> a= a+ b >>> a [1, 2, 3, 4, 5, 6..
2020. 6. 17.