Python练习-- dict and set

#!/usr/bin/env python3# -*- coding: utf-8 -*-d = {'Michael': 95,'Bob': 75,'Tracy': 85}print(d['Bob'])d['Adam'] = 67print(d)print('Thomas in d?? %s' % ('Thomas' in d))print('d.get(\'Thomas\'): %s' % d.get('Thomas'))print(d.pop('Bob'))print(d)# =========== set =====================print("=========== set =====================")s = set([1, 2, 3])print('s :',s)s.add(4)print(s)s1=set([1,2,3])s2=set([2,3,4])print('s1 :',s1)print('s2 :',s2)print('s1 & s2 :',s1 & s2)print('s1 | s2 :',s1 | s2)