如何在python中的tinydb查询中包含变量？

Question

from tinydb import TinyDB, Query 
db = TinyDB('db.json') 
ddd = Query() 
kl = free 
output = db.search(ddd.state == 'free') 

如何在tinydb db.search中使用变量k1？

Answer 1

只是用它在db.search

from tinydb import TinyDB, Query 
db = TinyDB('db.json') 
ddd = Query() 
db.insert({'state': 'free', 'field': 1}) 
db.insert({'state': 'n', 'field': 2}) 
db.insert({'state': 'free', 'field': 3}) 
kl = 'free' 
output = db.search(ddd.state == kl) 
print(output) 

输出

[{'state': 'free', 'field': 1}, {'state': 'free', 'field': 3}]