test.py

#encoding=utf-8

#缓存

# class Mycache:
#     def __init__(self):
#         self.cache = {}
#         self.max_cache_size = 10
#
#
#
#
# a = 15.1111
# print(round(a,1))

# a = 10
# b = 9.0



a = None

b = ''

if a:
    print(1)

if b:
    print(2)