保存并打开字典

Question

我使用此代码将字典保存到 txt 文件

dic = {1:'a', 2:'b', 3:'c'}
f = open("dict.txt","w")
f.write( str(dic) )
f.close()

现在我想知道如何将它再次导入字典？

Answer 1

如果你想再读一遍，我建议你pickledict。

import pickle

dic = {1:'a', 2:'b', 3:'c'}

with open('filename.pickle', 'wb') as handle:
    pickle.dump(dic, handle)

从泡菜中读取

import pickle

with open('filename.pickle', 'rb') as handle:
    read_dict = pickle.load(handle)
print(read_dict)

否则在这种情况下你可以这样做：

>>> import ast
>>> f = open("dict.txt","r")
>>> ast.literal_eval(f.read())