functools partical的作用

import functools
class api_export(object):
	def __init__(self,*arg,**kwags):
		self._api_name = kwags.get('api_name','hahaha')
		self._a = arg[0]
		self._b = arg[1]

	def add(self):
		return self._a + self._b

	def show(self):
		if self._api_name == 'hahaha':
			print("the origin is None")
		if self._api_name == 'hehehe':
			print("hehehehehehe")
		if self._api_name == 'pashan':
			print("Would you like to climb the mountain with me?~")


one = functools.partial(api_export,3)
two = functools.partial(api_export,api_name = 'hahaha')
three = functools.partial(api_export,3,api_name = 'pashan')