什么是pkl文件_桌面显示不出来怎么办是什么问题

# 1）串行化要存储的对象
import pprint
import cPickle as pickle

info = [.....一堆东西....] # info是一个list

data1 = pickle.dumps(info)
data2 = pickle.loads(data1)


# 2）使用pickle模块存储对象
import pickle

data1 = {.........一堆东西........} # data1是一个字典

selfref_list = [1, 2, 3]

output = open('data.pkl', 'wb')

# Pickle dictionary using protocol 0.
pickle.dump(data1, output)

# Pickle the list using the highest protocol available.
pickle.dump(selfref_list, output, -1)

output.close()

# 3）读取，并使用
import pprint, pickle

pkl_file = open('data.pkl', 'rb')

data1 = pickle.load(pke_file)
pprint.pprint(data1)

data2  = pickle.load(pkl_file)
pprint.pprint(data2)

pkl_file.close()