bug优化

ruoyi-modules/ruoyi-server/src/main/java/org/dromara/server/domain/vo/OrderTrainChangeVo.java

 package org.dromara.server.domain.vo;
 
-import java.math.BigDecimal;
-import org.dromara.server.domain.OrderTrainChange;
 import com.alibaba.excel.annotation.ExcelIgnoreUnannotated;
 import com.alibaba.excel.annotation.ExcelProperty;
-import org.dromara.common.excel.annotation.ExcelDictFormat;
-import org.dromara.common.excel.convert.ExcelDictConvert;
 import io.github.linpeilie.annotations.AutoMapper;
 import lombok.Data;
+import org.dromara.common.excel.annotation.ExcelDictFormat;
+import org.dromara.common.excel.convert.ExcelDictConvert;
+import org.dromara.server.domain.OrderTrainChange;
 
 import java.io.Serial;
 import java.io.Serializable;
-import java.util.Date;
+import java.math.BigDecimal;