1 装饰器无参数
class tracer:
def __init__(self,func):
self.calls = 0
self.func = func
def __call__(self,*args):
self.calls += 1
print('call %s to %s' %(self.calls, self.func.__name__))
self.func(*args)
@tracer
def spam(a, b, c):
print(a + b + c)
spam(1,2,3)
2 装饰器带参数
class tracer:
def __init__(self, *args):
self.calls = 0
self.args = args
def __call__(self, func):
self.func = func
def realfunc(*args):
self.calls += 1
print('call %s to %s' %(self.calls, self.func.__name__))
self.func(*args)
return realfunc
@tracer("xxxx")
def spam(a, b, c):
print(a + b + c)
spam(1,2,3)
spam(1,2,3)
class tracer: def __init__(self,func): self.calls = 0 self.func = func def __call__(self,*args): self.calls += 1 print('call %s to %s' %(self.calls, self.func.__name__)) self.func(*args) @tracerdef spam(a, b, c): print(a + b + c)
spam(1,2,3)spam(1,2,3)
