first commit

src/main/java/com/peanut/modules/book/service/CityService.java

@@ -0,0 +1,20 @@
+package com.peanut.modules.book.service;
+
+import com.baomidou.mybatisplus.extension.service.IService;
+import com.peanut.common.utils.PageUtils;
+import com.peanut.modules.book.entity.CityEntity;
+
+import java.util.Map;
+
+/**
+ * 市
+ *
+ * @author yl
+ * @email yl328572838@163.com
+ * @date 2022-10-27 16:07:59
+ */
+public interface CityService extends IService<CityEntity> {
+
+    PageUtils queryPage(Map<String, Object> params);
+}
+