python字典如何按value值排序

d = {'lilee':25, 'wangyan':21, 'liqun':32, 'age':19}

sorted(d.items(), key=lambda item:item[1])

[('age',19),('wangyan',21),('lilee',25),('liqun',32)]

sorted(d.items(), key=lambda item:item[1], reverse=True)

[('liqun',32),('lilee',25),('wangyan',21),('age',19)]

import operator

sorted(d.items(), key=operator.itemgetter(1))

[('age',19),('wangyan',21),('lilee',25),('liqun',32)]

f = zip(d.keys(), d.values())

c = sorted(f)

[('age',19),('wangyan',21),('lilee',25),('liqun',32)]