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Warrants (Tables)
 12 Months Ended
Dec. 31, 2023
Warrants  
Schedule of black-scholes model
                               
    December 31,
2021		     December 31,
2022		     December 31,
2023		     December 31,
2023		  
    USD     USD     USD     RMB  
Input                                
Share price     9.96       2.27       3.55       25.14  
Risk-free interest rate     1.26 %     4.02 %     3.95 %     3.95 %
Volatility     59.8 %     65.2 %     60.60 %     60.60 %
Exercise price     11.50       11.50       11.50       81.45  
Warrant life (yr)     5 years       4.71 years       3.71 years       3.71 years  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
                    
Description  Warrant
Liabiity		    Quoted Prices In
Active Markets
(Level 1)		    Significant Other
Observable Inputs
(Level 2)		    Significant Other
Unobservable Inputs
(Level 3)		  
December 31, 2022:  RMB 425,619    RMB -    RMB -    RMB 425,619 
December 31, 2023  RMB 62,200    RMB -    RMB -    RMB 62,200 
Schedule of Warrants activities
            
Private Warrants  Warrants  

Weighted Average
Exercise Price
Per Share

   Average Remaining
Period (Years)		 
Outstanding as of December 31, 2021   270,500   $11.50    5 
Issued   -    -    - 
Forfeited   -    -    - 
Exercised   -    -    - 
Expired   -    -    - 
Outstanding as of December 31, 2022   270,500   $11.50    5 
Issued   -    -    - 
Forfeited   -    -    - 
Exercised   -    -    - 
Expired   -    -    - 
Outstanding as of December 31, 2023   270,500   $11.50    4