feat&bug：文档问题修改及优化

刘帅

2026-09-17 b3221701c387ab536adf66cf315c75d3b429fe04

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package com.dsh.course.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.dsh.course.entity.AppGuideBanner;
public interface AppGuideBannerMapper extends BaseMapper<AppGuideBanner> {}