refactor(symbols): 优化K线历史数据加载逻辑

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1 days ago c4d7235172c0d4c451b3bd71d5520e15bf8fde66

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package com.xcong.excoin.common.system.base;
 
import com.baomidou.mybatisplus.extension.service.IService;
 
/**
 * @author wzy
 */
public interface IBaseService<T> extends IService<T> {
    T findById(Object id);
}