python3 序列化对象和反序列化对象

def store(data, filename):
# 序列化，写到本地磁盘文件
import pickle
with open(filename,'wb') as f:
pickle.dump(data, f)

def grab(filename):
# 反序列化，从本地文件读出原有的对象
import pickle
with open(filename,'rb') as f:
return pickle.load(f)

# 试一下普通数据的序列化效果
data = {'key':'value'}
print('data before store: ',data)

store(data,'data.txt')
data2 = grab('data.txt')
print('data after grab: ',data2)

# 定义一个类试一试序列化效果
class A:
def func(self):
print('func of a')

# 存之前
a = A()
a.func()

# 取出来之后
store(a,'a.txt')
a2 = grab('a.txt')
a2.func()