保存字典并坚持我

Question

我正在努力编一本单词词典。我想将添加的单词保存到字典word，这样当我再次运行它时，我可以查找添加的单词。你知道吗

#A DICTIONARY THAT CONTAINS ALL THE TRANSLATED WORDS
word = {"ikkje": "ikke"}

#TAKES INPUT FROM USER; THE WORD IN THE FIRST "LANGUAGE"
nynorsk = input("WRITE THE 'NYNORSKE' WORD NOW:") 

bokmål = input("WRITE THE SAME WORD IN 'BOKMÅL' NOW:")

#A FUNCTION THAT ADDS A NEW WORD WITH TRANSLATION TO THE DICTIONARY "word"
def add_word(self,var):
    word[nynorsk] = bokmål

add_word(nynorsk, bokmål)
print(word)

Answer 1

你必须把字典保存到一个文件中。我建议对此使用JSON。你知道吗

import json

#A FUNCTION THAT ADDS A NEW WORD WITH TRANSLATION TO THE DICTIONARY "word"
def add_word(nynorsk_word, bokmål_word):
    word[nynorsk_word] = bokmål_word

#A DICTIONARY THAT CONTAINS ALL THE TRANSLATED WORDS
try:
    # Try to load the word JSON file.
    word = json.load(open("word.json"))
except FileNotFoundError:
    # Initialize it, if the file does not exist.
    word = {"ikkje": "ikke"}

#TAKES INPUT FROM USER; THE WORD IN THE FIRST "LANGUAGE"
nynorsk = input("WRITE THE 'NYNORSKE' WORD NOW:")
bokmål = input("WRITE THE SAME WORD IN 'BOKMÅL' NOW:")

add_word(nynorsk, bokmål)

# Write the word JSON file.
with open("word.json", "w") as wordfile:
    json.dump(word, wordfile)

print(word)

Answer 2

可以使用pickle在本地服务器上存储文件磁盘。它用于序列化和反序列化

temp = get_list_from_pickle('alerted_dict.pickle')
word = {"ikkje": "ikke"}
#TAKES INPUT FROM USER; THE WORD IN THE FIRST "LANGUAGE"
nynorsk = input("WRITE THE 'NYNORSKE' WORD NOW:") 
bokmål = input("WRITE THE SAME WORD IN 'BOKMÅL' NOW:")

#A FUNCTION THAT ADDS A NEW WORD WITH TRANSLATION TO THE DICTIONARY "word"
def add_word(self,var):
    word[nynorsk] = bokmål
add_word(nynorsk, bokmål)
with open('alerted_dict.pickle', 'wb') as fp:
     pickle.dump(temp, fp)
print(word)

def get_list_from_pickle(filename):
    try:
      with open(filename, 'rb') as fp:
           return pickle.load(fp)
    except FileNotFoundError:
      with open(filename, 'wb') as fp:
           pickle.dump([], fp)

Answer 3

如果你想让你的字典在你关闭和打开你的程序后仍然存在，我可以推荐两种方法。你知道吗

1-您可以使用shelve模块。此模块帮助您将变量（甚至文件对象）存储到文件中，然后您可以读取文件。你知道吗

import shelve

shelf = shelve.open('store')
shelf['ikkje'] = 'ikke'

再次关闭并打开文件

import shelve

shelf = shelve.open('store')
print(shelf['ikkje'])
# ikke

---

2-您可以使用pprint.pformat将变量排列成有意义的格式，并将其保存到.py文件中。之后，只需导入此文件即可。请注意，只能对特定对象使用此方法，而不能对文件等复杂对象使用此方法。你知道吗

import pprint

words = {'ikkje': 'ikke'}

with open('store.py', 'w') as store:
    store.write('words = ' + pprint.pformat)

再次关闭并打开文件

import store
print(store.words)

# {'ikkje': 'ikke'}