列表、元组、字典、集合的定义、操作与综合练习
l = ['Mary','Bob','Tracy'] l.append('Bob') l.pop() print(1) t = ('Mary','Bob','Tracy') scores = [45,65,55] d = {'Mary':45,'Bob':65,'Tracy':55} d['Bob'] = 82 d['Rose'] = 88 d.pop('Bob') print(d) sl = {'Mary','Bob','Tracy'} s2 = {'Michael',2,3} sl.add(12) s2.remove(3) print(sl,s2) dl = dict(zip(l,scores)) print(1) print(scores) print(dl)