from IPython.core.interactiveshell import InteractiveShell InteractiveShell.ast_node_interactivity = “all”
phonebook1 = {‘ann’:6575, ‘bob’:8982, ‘joe’:2598, ‘zoe’:1225, ‘ann’:6585} phonebook2 = {‘john’:9876, ‘mike’:5603, ‘stan’:6898, ‘eric’:7898} phonebook1.update(phonebook2)
len(phonebook1) max(phonebook1) min(phonebook1) list(phonebook1) tuple(phonebook1) set(phonebook1) sorted(phonebook1) sorted(phonebook1, reverse=True)
max()函数运行后为什么得到是’zoe’?按照值的大小不应该是’john’吗？
