| package com.xcong.excoin.modules.platform.dao;  | 
|   | 
| import com.baomidou.mybatisplus.core.mapper.BaseMapper;  | 
| import com.xcong.excoin.modules.platform.entity.PlatformCnyUsdtExchangeEntity;  | 
|   | 
| import java.math.BigDecimal;  | 
|   | 
| public interface PlatformCnyUsdtExchangeDao extends BaseMapper<PlatformCnyUsdtExchangeEntity> {  | 
|   | 
|     PlatformCnyUsdtExchangeEntity getCNYAndUSDTOne();  | 
|       | 
|     void updateUsdt(BigDecimal value);  | 
|   | 
| }  |