1 f = lambda a,b,c : a+b+c 2 print('2+3+4的结果：',f(2,3,4)) 3 4 #匿名函数作为map()高阶函数的参数 5 L = map(lambda x: x*x,[1,2,3,4,5,6,7,8,9]) 6 print(list(L)) 8 #sorted中使用匿名函数 9 class Student: 10 def __init__(self,name,age): 11 self.name = name 12 self.age = age 13 stu1 = Student('aaa',11) 14 stu2 = Student('bbb',31) 15 stu3 = Student('ccc',21) 16 student_list = sorted([stu1,stu2,stu3],key=lambda x: x.age) 17 for stu in student_list: 18 print('name:',stu.name,'age:',stu.age) 19 20 #按照名字进行排序 21 student_list = sorted([stu1,stu2,stu3],key=lambda x: x.name) 22 for stu in student_list: 23 print('name:',stu.name,'age:',stu.age)
1 2+3+4的结果： 9 2 [1, 4, 9, 16, 25, 36, 49, 64, 81] 3 name: aaa age: 11 4 name: ccc age: 21 5 name: bbb age: 31 6 name: aaa age: 11 7 name: bbb age: 31 8 name: ccc age: 21