Python的条件表达式和lambda表达式实例

def put(): print('this is put()') def get(): print('this is get()') def post(): return 0 method = put if post() else getmethod() 

lambda [arguments] : expression用来创建匿名函数 method = lambda x : x**2ret = method(2)print(ret)

 #if语句中f(1)==1时，前面的两个lambda表达式结果为1时，就返回，然后存于list中f = [f for f in (lambda x: x, lambda x: x ** 2) if f(1) == 1]print(f)#[<function <lambda> at 0x035B2930>, <function <lambda> at 0x035B2858>]print(f[0](2))#返回：2print(f[1](2))#返回：4

def action(x):  return lambda y:x+yf = action(2)f(22) #24#也可以直接：action(2)(22)#返回：24