匿名函数和内置函数的使用
1 potfofolio=[ 2 {'name':'IBM','shares':100,'price':91.1}, 3 {'name':'APPLE','shares':50,'price':543.22}, 4 {'name':'FB','shares':300,'price':21.09}, 5 {'name':'HPQ','shares':35,'price':31.75}, 6 {'name':'YHOO','shares':45,'price':16.35}, 7 {'name':'INTEL','shares':75,'price':115.65}, 8 ]
显示输出总价格：shares*price
实现代码：
m1=map(lambda x:{x['name']:x['shares']*x['price']},potfofolio) #返回值是一个生成器 for i in m1: print(i)
显示价格大于100的记录：
实现代码：
1 f1=filter(lambda x:int(x['price'])>100,potfofolio) #返回满足条件的记录 还是原来的字典样式 2 for i in f1: 3 print(list(i.values()))
