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src/YhCore.Common/Utils/PageInfo.cs

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+namespace YhCore.Common.Utils
+{
+    /// <summary>
+    /// 分页元信息（对应 Java 版 model.tool.PageInfo）。
+    /// C# 属性为 PascalCase，ASP.NET Core 默认 camelCase 序列化后
+    /// JSON 字段与 Java 版一致（pageNum/pageSize/total/totalPages/hasNext/hasPrev）。
+    /// </summary>
+    public class PageInfo
+    {
+        /// <summary>当前页码（从 0 开始，与 Spring Pageable 一致）</summary>
+        public int PageNum { get; set; }
+
+        /// <summary>每页大小</summary>
+        public int PageSize { get; set; }
+
+        /// <summary>总记录数</summary>
+        public int Total { get; set; }
+
+        /// <summary>总页数</summary>
+        public int TotalPages { get; set; }
+
+        /// <summary>是否有下一页</summary>
+        public bool HasNext { get; set; }
+
+        /// <summary>是否有上一页</summary>
+        public bool HasPrev { get; set; }
+
+        public PageInfo()
+        {
+        }
+
+        public PageInfo(int pageNum, int pageSize, int total, int totalPages, bool hasNext, bool hasPrev)
+        {
+            PageNum = pageNum;
+            PageSize = pageSize;
+            Total = total;
+            TotalPages = totalPages;
+            HasNext = hasNext;
+            HasPrev = hasPrev;
+        }
+    }
+}