函数装饰器与类装饰器

import time

# 函数装饰器
def runtime(fun1):
    def inner(*args, **kwargs):
        """inner doc """
        start_time = time.time()
        f = fun1(*args, **kwargs)
        time.sleep(1)
        end_time = time.time()
        interval = end_time - start_time
        print("function %s 运行时间：%s " % (fun1.__name__, interval))
　　　　 return f
    return inner

@runtime
def fun_a(a):
    """fun_a : hello + a"""
    print("hello"+a)
    # print(fun_a.__name__)
    # print(fun_a.__doc__)


fun_a('a')


#类装饰器
class Runtime(object):
    def __init__(self, delay=1):
        self.delay = delay
        
    def __call__(self, fun):
        """Runtime doc"""
        def inner(*args, **kwargs):
            """inner doc"""
            start_time = time.time()
            f = fun(*args,**kwargs)
            time.sleep(self.delay-1)
            end_time = time.time()
            interval = end_time - start_time
            print("function %s 运行时间：%.4f " % (fun.__name__, interval))
            return f
        return inner


@Runtime(2)
def fun_a(a):
    """fun_a : hello + a"""
    print("hello"+a)
    print(fun_a.__name__)
    print(fun_a.__doc__)


fun_a('a')