當(dāng)前位置：首頁(yè) > 编程语言 > python >内容正文

python

python用字典存储学生信息网_用Python存储字典的四种方法

發(fā)布時(shí)間：2024/10/5 python 29 豆豆

生活随笔收集整理的這篇文章主要介紹了 python用字典存储学生信息网_用Python存储字典的四种方法小編覺得挺不錯(cuò)的,現(xiàn)在分享給大家,幫大家做個(gè)參考.

0.直接字典和被字符串包裹的字典

d = {'技術(shù)': {'后端開發(fā)': ['Java', 'C++', 'PHP'], '移動(dòng)開發(fā)': ['HTML5', 'JavaScrpit']},'產(chǎn)品':{'產(chǎn)品經(jīng)理':['產(chǎn)品經(jīng)理', '網(wǎng)頁(yè)產(chǎn)品經(jīng)理', '移動(dòng)產(chǎn)品經(jīng)理', '產(chǎn)品助理', '數(shù)據(jù)產(chǎn)品經(jīng)理', '電商產(chǎn)品經(jīng)理', '游戲策劃', '產(chǎn)品實(shí)習(xí)生'],'產(chǎn)品設(shè)計(jì)師':['網(wǎng)頁(yè)產(chǎn)品設(shè)計(jì)師', '無(wú)線產(chǎn)品設(shè)計(jì)師']}}

s = "{'技術(shù)': {'后端開發(fā)': ['Java', 'C++', 'PHP'], '移動(dòng)開發(fā)': ['HTML5', 'JavaScrpit']},'產(chǎn)品':{'產(chǎn)品經(jīng)理':['產(chǎn)品經(jīng)理', '網(wǎng)頁(yè)產(chǎn)品經(jīng)理', '移動(dòng)產(chǎn)品經(jīng)理', '產(chǎn)品助理', '數(shù)據(jù)產(chǎn)品經(jīng)理', '電商產(chǎn)品經(jīng)理', '游戲策劃', '產(chǎn)品實(shí)習(xí)生'],'產(chǎn)品設(shè)計(jì)師':['網(wǎng)頁(yè)產(chǎn)品設(shè)計(jì)師', '無(wú)線產(chǎn)品設(shè)計(jì)師']}}"

1.eval + str

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

def save(dict):

if isinstance(dict, str):

dict = eval(dict)

with open('a.txt', 'w', encoding='utf-8') as f:

f.write(str(dict)) # dict to str

def load():

with open('a.txt', 'r', encoding='utf-8') as f:

dict = eval(f.read()) # eval

print(dict['技術(shù)']['后端開發(fā)'])

if __name__ == '__main__':

save(d)

load()

save(s)

load()

['Java', 'C++', 'PHP']

2.json

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

import json

def save(dict):

if isinstance(dict, str):

dict = eval(dict)

with open('a.txt', 'w', encoding='utf-8') as f:

# f.write(str(dict)) # 直接這樣存儲(chǔ)的時(shí)候，讀取時(shí)會(huì)報(bào)錯(cuò)JSONDecodeError，因?yàn)閖son讀取需要雙引號(hào){"aa":"BB"},python使用的是單引號(hào){'aa':'bb'}

str_ = json.dumps(dict, ensure_ascii=False) # TODO：dumps 使用單引號(hào)''的dict ——> 單引號(hào)''變雙引號(hào)"" + dict變str

print(type(str_), str_)

f.write(str_)

def load():

with open('a.txt', 'r', encoding='utf-8') as f:

data = f.readline().strip()

print(type(data), data)

dict = json.loads(data)

print(type(dict),dict)

if __name__ == '__main__':

save(d)

load()

save(s)

load()

{"技術(shù)": {"后端開發(fā)": ["Java", "C++", "PHP"], "移動(dòng)開發(fā)": ["HTML5", "JavaScrpit"]}, "產(chǎn)品": {"產(chǎn)品經(jīng)理": ["產(chǎn)品經(jīng)理", "網(wǎng)頁(yè)產(chǎn)品經(jīng)理", "移動(dòng)產(chǎn)品經(jīng)理", "產(chǎn)品助理", "數(shù)據(jù)產(chǎn)品經(jīng)理", "電商產(chǎn)品經(jīng)理", "游戲策劃", "產(chǎn)品實(shí)習(xí)生"], "產(chǎn)品設(shè)計(jì)師": ["網(wǎng)頁(yè)產(chǎn)品設(shè)計(jì)師", "無(wú)線產(chǎn)品設(shè)計(jì)師"]}}

{'技術(shù)': {'后端開發(fā)': ['Java', 'C++', 'PHP'], '移動(dòng)開發(fā)': ['HTML5', 'JavaScrpit']}, '產(chǎn)品': {'產(chǎn)品經(jīng)理': ['產(chǎn)品經(jīng)理', '網(wǎng)頁(yè)產(chǎn)品經(jīng)理', '移動(dòng)產(chǎn)品經(jīng)理', '產(chǎn)品助理', '數(shù)據(jù)產(chǎn)品經(jīng)理', '電商產(chǎn)品經(jīng)理', '游戲策劃', '產(chǎn)品實(shí)習(xí)生'], '產(chǎn)品設(shè)計(jì)師': ['網(wǎng)頁(yè)產(chǎn)品設(shè)計(jì)師', '無(wú)線產(chǎn)品設(shè)計(jì)師']}}

3.pickle

參考：https://blog.csdn.net/yangtf07/article/details/81571371

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

import pickle

def save_dict(obj, name):

with open(name + '.pkl', 'wb') as f:

pickle.dump(obj, f, pickle.HIGHEST_PROTOCOL)

def load_dict(name ):

with open(name + '.pkl', 'rb') as f:

return pickle.load(f)

if __name__ == '__main__':

save_dict(d, "a")

print(load_dict("a"))

4.numpy

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

import pickle

import numpy as np

# Save

np.save('my_file.npy', d)

# Load

read_dictionary = np.load('my_file.npy', allow_pickle=True).item()

print(read_dictionary['技術(shù)']['移動(dòng)開發(fā)'])

['HTML5', 'JavaScrpit']

擴(kuò)展：Python 三種方法字符串轉(zhuǎn)字典

總結(jié)

以上是生活随笔為你收集整理的python用字典存储学生信息网_用Python存储字典的四种方法的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。

上一篇：修改用户名_新华美育查找用户名及修改密码
下一篇： http发送16进制报文_阿里云物联网平

3atv精品不卡视频,97人人超碰国产精品最新,中文字幕av一区二区三区人妻少妇,久久久精品波多野结衣,日韩一区二区三区精品

python

python用字典存储学生信息网_用Python存储字典的四种方法

總結(jié)