Python decorator拦截器代码实例解析

def get_text(name):
  return "hello, {0}".format(name)

def p_decorate(func):
  def func_wrapper(name):
    return "<p>{0}</p>".format(func(name))
  return func_wrapper

my_get_text = p_decorate(get_text)
print(my_get_text("zhangsan"))

def p_decorate(func):
  def func_wrapper(*args, **kwargs):
    return "<p>{0}</p>".format(func(*args, **kwargs))
  return func_wrapper

class Person(object):
  def __init__(self):
    self.name = "Neng"
    self.family = "Xiong"

  @p_decorate
  def get_fullname(self):
    return self.name+" "+self.family

my_person = Person()
print(my_person.get_fullname())

def tags(tag_name):
  def tags_decorator(func):
    def func_wrapper(*args, **kargs):
      return "<{0}>{1}</{0}>".format(tag_name, func(*args, **kargs))
    return func_wrapper
  return tags_decorator

@tags("div")
@tags("p")
@tags("strong")
def get_text(name):
  return "hello, "+name

print(get_text("zhangsan"))