[Python知识库]Python---匿名函数

Python#1.12.2

# # 匿名函数:简化函数定义
# # 格式：lambda  参数1，参数2...：运算
#
# def func():
#     print('aaa')
#
#
# def add(a, b):
#     s = a + b
#     return s


# s = lambda a, b: a + b
# print(s)  # s就是函数function
# 
# result = s(1, 2)
# print(result)

# s1 = lambda x, y: x * y
# result = s1(2, 5)
# print(result)
#
#
# # 匿名函数作为参数
# def func(x, y, func):
#     print(x, y)
#     print(func)
#     s = func(x, y)
#     print(s)
#
#
# # 调用func
# func(1, 2, lambda a, b: a + b)

list1 = [3, 5, 8, 9, 0]
m = max(list1)
print('列表的最大值:', m)
list2 = [{'a': 10, 'b': 20}, {'a': 13, 'b': 20}, {'a': 9, 'b': 20}, {'a': 29, 'b': 20}]
m = max(list2, key=lambda x: x['a'])