新增城市模块

ruoyi-system/src/main/java/com/ruoyi/system/domain_yada/CityFocusVO.java

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+package com.ruoyi.system.domain_yada;/**
+ * @Author: JinSheng Song
+ * @Date: 2022/7/1 10:15
+ */public class CityFocusVO {
+}

ruoyi-system/src/main/java/com/ruoyi/system/mapper_yada/CityExpandMapper.java

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+package com.ruoyi.system.mapper_yada;/**
+ * @Author: JinSheng Song
+ * @Date: 2022/7/1 10:12
+ */public class CityExpandMapper {
+}

ruoyi-system/src/main/java/com/ruoyi/system/service_yada/ICityExpandService.java

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+package com.ruoyi.system.service_yada;/**
+ * @Author: JinSheng Song
+ * @Date: 2022/7/1 10:11
+ */public interface ICityExpandService {
+}

ruoyi-system/src/main/java/com/ruoyi/system/service_yada/impl/CityExpandServiceimpl.java

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+package com.ruoyi.system.service_yada.impl;/**
+ * @Author: JinSheng Song
+ * @Date: 2022/7/1 10:12
+ */public class CityExpandServiceimpl {
+}