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装饰器工作python

代码示例

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0

python装饰器 

# decorators are user to decorate functions like what to do before/after calling the function
import time

def delay_decorator(function):
    def wrapper_function():
        print("-----------------------I am gonna greet you--------------------------")
        time.sleep(2)# waits for 2 seconds
        function()   # calls the function
        time.sleep(1)# waits for 1 sec
        print("------------------How do you feel about that greet?-------------------")
    return wrapper_function

@delay_decorator
def greet():
    print("Helllllloooooooooo")

greet()
12
0

装饰器python 

def our_decorator(func):
    def function_wrapper(x):
        print("Before calling " + func.__name__)
        func(x)
        print("After calling " + func.__name__)
    return function_wrapper

@our_decorator
def foo(x):
    print("Hi, foo has been called with " + str(x))

foo("Hi")

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