a = [1, 2, 3, 4] print(id(a)) #1772947465664 a[:2]=6,7,8,9,10,11 print(id(a)) #1772947465664 print(a) #[6, 7, 8, 9, 10, 11, 3, 4]
a = [1, 2, 3, 4] print(id(a)) #1772947465664 a[:2]=6,7,8,9,10,11 print(id(a)) #1772947465664 print(a) #[6, 7, 8, 9, 10, 11, 3, 4]