json可以序列化多次但是反序列化只能反序列化一次，shelve可以多次写入，存取也比较方便

1. shelve模块是一个简单的k,v将内存数据通过文件持久化的模块，可以持久化任何pickle可支持的python数据格式

import shelved = shelve.open("mydbase")name = ["zhangsan","lisi","wangmz"] d["test"] = name #持久化列表d["age"] = 20 d.close()

import shelvedbase = shelve.open("mydbase")print(dbase.keys())print(dbase['test'])for i in dbase:    print(i)d.close()

2. json模块

#json序列化import jsona = {
   "tony":22, 'james':34}with open('text.txt','w') as f:    f.write(json.dumps(a))#json反序列化import jsonwith open('text.txt', 'r') as f:    x = json.load(f)    print(x["james"])

 3. pickele