南京大学：《计算机程序的构造和解释 Structure and Interpretation of Computer Programs》课程教学资源（PPT课件讲稿）08-Containers

CS 61A Lecture 10

CS 61A Lecture 10

Announcements

Announcements

Lists ['Demo']

Lists ['Demo']

Working with Lists

Working with Lists 4

Working with Lists >>digits=[1,8,2,8] n

Working with Lists >>> digits = [1, 8, 2, 8] 4

Working with Lists >>digits=[1,8,2,8] >>dig1ts=[2//2,2+2+2+2,2,2*2*2] n

Working with Lists >>> digits = [1, 8, 2, 8] 4 >>> digits = [2//2, 2+2+2+2, 2, 2*2*2]

Working with Lists >digits=[1,8,2,8] >>dig1ts=[2//2,2+2+2+2,2,2*2*2] The number of elements

Working with Lists >>> digits = [1, 8, 2, 8] 4 The number of elements >>> digits = [2//2, 2+2+2+2, 2, 2*2*2]

Working with Lists >>digits=[1,8,2,8] >>dig1ts=[2//2,2+2+2+2,2,2*2*2] The number of elements >>>len(digits)

Working with Lists >>> digits = [1, 8, 2, 8] 4 The number of elements >>> len(digits) 4 >>> digits = [2//2, 2+2+2+2, 2, 2*2*2]

Working with Lists >digits=[1,8,2,8] >>dig1ts=[2//2,2+2+2+2,2,2*2*2] The number of elements >>>len(digits) 4 An element selected by its index

Working with Lists >>> digits = [1, 8, 2, 8] 4 The number of elements >>> len(digits) 4 An element selected by its index >>> digits = [2//2, 2+2+2+2, 2, 2*2*2]

Working with Lists >>digits=[1,8,2,8] >>dig1ts=[2//2,2+2+2+2,2,2*2*2] The number of elements >>>len(digits) An element selected by its index >>digits[3] 8

Working with Lists >>> digits = [1, 8, 2, 8] 4 The number of elements >>> len(digits) 4 An element selected by its index >>> digits[3] 8 >>> digits = [2//2, 2+2+2+2, 2, 2*2*2]