def add(x,y):     return x+y add = lambda x,y:x+y print(add(1,2)) dic={'k1':10,'k2':100,'k3':30} def func(key):     return dic[key] print(max(dic,key=func))   #根据返回值判断最大值，返回值最大的那个参数是结果 print(max(dic,key=lambda key:dic[key])) max([1,2,3,4,5,-6,-7],key=abs) ret = map(abs,[-1,2,-3,4]) for i in ret:     print(i) def func(x):     return x**2 ret = map(func,[-1,2,-3,4]) for i in ret:     print(i) ret = map(lambda x:x**2,[-1,2,-3,4]) def func(x):     return x>10 res = filter(func,[5,8,11,9,15]) for i in res:     print(i) min max filter map sorted —— lambda d = lambda p:p*2 t = lambda p:p*3 x = 2 x = d(x) #x = 4 x = t(x) #x = 12 x = d(x) #x = 24 print(x) ret = zip((('a'),('b')),(('c'),('d'))) ret = map(lambda t:{t[0]:t[1]},ret) print(list(ret)) 现有两元组(('a'),('b')),(('c'),('d')), 请使用python中匿名函数生成列表[{'a':'c'},{'b':'d'}] max min sorted filter map 匿名函数 == 内置函数 zip ret = zip((('a'),('b')),(('c'),('d'))) res = map(lambda tup:{tup[0]:tup[1]},ret) print(list(res)) def multipliers():     return [lambda x:i*x for i in range(4)] print([m(2) for m in multipliers()])