li = ['alex','wusir','ritian','barry','wenzhou'] print(len(li)) # 长度 5 li.append("seven") print(li) # ['alex', 'wusir', 'ritian', 'barry', 'wenzhou', 'seven'] li.insert(1,'Tony') print(li) # ['alex', 'Tony', 'wusir', 'ritian', 'barry', 'wenzhou', 'seven'] li[2] = "Kelly" print(li) #['alex', 'Tony', 'Kelly', 'ritian', 'barry', 'wenzhou', 'seven'] l2 = [1,'a',3,4,'heart'] li.extend(l2) print(li) # ['alex', 'Tony', 'Kelly', 'ritian', 'barry', 'wenzhou', 'seven', 1, 'a', 3, 4, 'heart'] s = 'qwert' li.extend(s) print(li) # ['alex', 'Tony', 'Kelly', 'ritian', 'barry', 'wenzhou', 'seven', 1, 'a', 3, 4, 'heart', 'q', 'w', 'e', 'r', 't'] li.pop(li.index("ritian")) print(li) # ['alex', 'Tony', 'Kelly', 'barry', 'wenzhou', 'seven', 1, 'a', 3, 4, 'heart', 'q', 'w', 'e', 'r', 't'] li.pop(1) print(li) # 'Tony', ['alex', 'Kelly', 'barry', 'wenzhou', 'seven', 1, 'a', 3, 4, 'heart', 'q', 'w', 'e', 'r', 't'] del li[1:4] print(li) # ['alex', 'seven', 1, 'a', 3, 4, 'heart', 'q', 'w', 'e', 'r', 't']
