python列表嵌套字典，根据键的值排序

列表[{‘name’:‘wang’,‘age’:30},{‘name’:‘zhang’,‘age’:20},{‘name’:‘li’,‘age’:25}]，以’age’排序，结果:[{‘name’: ‘zhang’, ‘age’: 20}, {‘name’: ‘li’, ‘age’: 25}, {‘name’: ‘wang’, ‘age’: 30}]

方法一：

import operator
lt = [{'name':'wang','age':30},{'name':'zhang','age':20},{'name':'li','age':25}]
sorted_lt = sorted(lt,key=operator.itemgetter('age'))
print(sorted_lt)

方法二：

lt = [{'name':'wang','age':30},{'name':'zhang','age':20},{'name':'li','age':25}]
#sorted_lt  = sorted(lt,key=lambda x:x['age'],reverse=False)
# print(sorted_lt )