一、字典格式数据源写入数据库文件

1 #！/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 import pickle 4 accounts ={1000:'alex', 5            'name':'xxx', 6            'email':'xxxxsss@163.com', 7            'password':'abc123', 8            'balance':100000, 9         'phone':13643424246,10            'bank_acc':{
   'icbc':132435,'abc':557868687,'bac':787977564}}11 12 print(pickle.dumps(accounts))13 f=open('account.db','wb')14 f.write(pickle.dumps(accounts))15 f.close()

二、打开文件，修改文件，关闭文件

1 import pickle 2 accFile = open('account.db','rb') 3 accDict = pickle.loads(accFile.read()) 4 accFile.close() 5 accDict['balance']-=500 6  7  8 f=open('account.db','wb') 9 f.write(pickle.dumps(accDict))10 f.close()11 print(accDict)

三、打开文件最后核查

1 import pickle2 f = open('account.db','rb')3 account_db = pickle.loads(f.read())4 f.close()5 print(account_db)