: Hao : : 2016-01-01

a_list = [1,2,3,4,5,6,7,8] d1 = {'apple':1, 'pear':2, 'orange':3} d2 = {1:'a', 2:'b', 3:'c'} d3 = {1:'a', 'b':2, 'c':3} print(d1['apple']) # 1 print(a_list[0]) # 1 del d1['pear'] print(d1) # {'orange': 3, 'apple': 1} d1['b'] = 20 print(d1) # {'orange': 3, 'b': 20, 'apple': 1}

def func(): return 0 d4 = {'apple':[1,2,3], 'pear':{1:3, 3:'a'}, 'orange':func} print(d4['pear'][3]) # a

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