Python缓存技术实现过程详解

def console1(a, b):
  print("进入函数")
  return (a, b)

print(console1(3, 'a'))
print(console1(2, 'b'))
print(console1(3.0, 'a'))

进入函数
(3, 'a')
进入函数
(2, 'b')
进入函数
(3.0, 'a')

from functools import lru_cache
@lru_cache()
def console2(a, b):
  print("进入函数")
  return (a, b)
print(console2(3, 'a'))
print(console2(2, 'b'))
print(console2(3.0, 'a'))

进入函数
(3, 'a')
进入函数
(2, 'b')
(3, 'a')

from functools import lru_cache

def console1(a, b):
  print("进入函数")
  return (a, b)


@lru_cache()
def console2(a, b):
  print("进入函数")
  return (a, b)


@lru_cache(maxsize=256, typed=True)
def console3(a, b):
  '''

  :param a:
  :param b:
  :return:
  '''
  print("进入函数")
  return (a, b)


print(console1(3, 'a'))
print(console1(2, 'b'))
print(console1(3.0, 'a'))
print("*" * 40)
print(console2(3, 'a'))
print(console2(2, 'b'))
print(console2(3.0, 'a'))
print("*" * 40)
print(console3(3, 'a'))
print(console3(2, 'b'))
print(console3(3.0, 'a'))

from functools import lru_cache
from requests_html import HTMLSession
session=HTMLSession()
@lru_cache()
def get_html(url):
  req=session.get(url)
  print(url)
  return req

urllist=["https://www.baidu.com","https://pypi.org/project/pylru/1.0.9/","https://www.baidu.com"]

if __name__ == '__main__':
  for i in urllist:
    print(get_html(i))

https://www.baidu.com
<Response [200]>
https://pypi.org/project/pylru/1.0.9/
<Response [200]>
<Response [200]>