import pickle
pickle.dump(obj,f)
pickle.dumps(obj,f)
pickle.load(f)
pickle.loads(f)

# -*- coding:utf-8 -*-
import pickle
obj = 123, "abcdef", ["ac", 123], {"key": "value", "key1": "value1"}
print(obj)
# 序列化到文件
with open(r"F:\pycodes\ML\a.txt", "wb") as f:
 pickle.dump(obj, f)
with open(r"F:\\pycodes\\ML\\a.txt", "rb") as f:
 print(pickle.load(f))# 输出：(123, 'abcdef', ['ac', 123], {'key': 'value', 'key1': 'value1'})
# 序列化到内存（字符串格式保存），然后对象可以以任何方式处理如通过网络传输
obj1 = pickle.dumps(obj)
print(type(obj1))# 输出<class 'bytes'>
print(obj1)# 输出：python专用的存储格式 b'\x80\x03(K{X\x06\x00\x00\x00abcdefq\x00]q\x01(X\x02\x00\x00\x00acq\x02K{e}q\x03(X\x03\x00\x00\x00keyq\x04X\x05\x00\x00\x00valueq\x05X\x04\x00\x00\x00key1q\x06X\x06\x00\x00\x00value1q\x07utq\x08.'
obj2 = pickle.loads(obj1)
print(type(obj2))# 输出：<class 'tuple'>
print(obj2) # 输出：(123, 'abcdef', ['ac', 123], {'key': 'value', 'key1': 'value1'})