v3.22.2.2
Accumulated other comprehensive losses (Details) - Schedule of accumulated other comprehensive losses - CNY (¥)
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Schedule Of Accumulated Other Comprehensive Losses Abstract    
Foreign currency translation adjustment, Balance Beginning ¥ (25,393,515) ¥ (18,456,546)
Foreign currency translation adjustment, Other comprehensive loss, net 18,747,601 (1,618,941)
Foreign currency translation adjustment, Balance Ending ¥ (6,645,914) ¥ (20,075,487)