在帶有參數(shù)的的函數(shù)進(jìn)行裝飾時

            
              def pri(func):
    def one(*a,**b):   # 這里要帶參
         func(*a,**b)  # 這里也要帶參   
    return one     
@pri          
def test(*a,**b):      # 不定長參數(shù)
    print(a,b)
test(1,2,a=2)

            
          

對有返回值的函數(shù)進(jìn)行裝飾時

            
              def pri(func):
    def one():
        return func()   # 要將func()返回 
    return one     
@pri          
def test(): 
    return True
print(test())

            
          

帶有參數(shù)的裝飾器需要再增加一層封裝

            
              def outer(args):
    def pri(func):
        def one():
            return func(args)   
        return one  
    return pri
@outer('hello')  # test=outer('hello')(test)     
def test(args): 
    return args
print(test())