Python3 pickle模块教程-昊天SEO

# -*- coding: utf-8 -*-
__author__ = 'songhao'
import <span class='wp_keywordlink_affiliate'><a href="https://www.168seo.cn/tag/pickle" title="View all posts in pickle" target="_blank">pickle</a></span>

shoplistfile = 'shoplist.data'
# the name of the file where we will store the object

shoplist = ['apple', 'mango', 'carrot']

# Write to the file

f = open(shoplistfile, 'wb') #以二进制的方式进行写入


<span class='wp_keywordlink_affiliate'><a href="https://www.168seo.cn/tag/pickle" title="View all posts in pickle" target="_blank">pickle</a></span>.dump(shoplist, f)  # dump the object to a file 倒入一个文件,存入
f.close()

del shoplist  # remove the shoplist

# Read back from the storage
f = open(shoplistfile, 'rb')
storedlist = <span class='wp_keywordlink_affiliate'><a href="https://www.168seo.cn/tag/pickle" title="View all posts in pickle" target="_blank">pickle</a></span>.load(f) # 读入文件
print(storedlist)

dump: 写入
load: 读取

# -*- coding: utf-8 -*-

__author__ = 'songhao'

import pickle

shoplistfile = 'shoplist.data'

# the name of the file where we will store the object

shoplist = ['apple', 'mango', 'carrot']

# Write to the file

f = open(shoplistfile, 'wb') #以二进制的方式进行写入

pickle.dump(shoplist, f) # dump the object to a file 倒入一个文件,存入

f.close()

del shoplist # remove the shoplist

# Read back from the storage

f = open(shoplistfile, 'rb')

storedlist = pickle.load(f) # 读入文件

print(storedlist)

dump: 写入

load: 读取

对于序列化最普遍的做法就是使用 pickle 模块。为了将一个对象保存到一个文件中，可以这样做：

import pickle

data = ... # Some Python object
f = open('somefile', 'wb')
pickle.dump(data, f)
为了将一个对象转储为一个字符串，可以使用 pickle.dumps() ：

s = pickle.dumps(data)
为了从字节流中恢复一个对象，使用 picle.load() 或 pickle.loads() 函数。比如：

# Restore from a file
f = open('somefile', 'rb')
data = pickle.load(f)

# Restore from a string 将一个字符串恢复成对象
data = pickle.loads(s)