diff --git a/全自动水压检测仪/DATA/ConductividyClass.cs b/全自动水压检测仪/DATA/ConductividyClass.cs
index cb46a11..de3d94e 100644
--- a/全自动水压检测仪/DATA/ConductividyClass.cs
+++ b/全自动水压检测仪/DATA/ConductividyClass.cs
@@ -268,6 +268,18 @@ standarderror)
             }
         }
 
+
+        public void DeleteTestAllItems(int id)
+        {
+            using (var connection = new MySqlConnection(_connectionString))
+            {
+                connection.Open();
+                var sql = @"delete from normaltemperature where id=@id
+                   ";
+                connection.Execute(sql, new { id });
+            }
+        }
+
         public List<ScanData> GetScanDataBylldh_jh(string jh)
         {
             using (var connection = new MySqlConnection(_connectionString))
diff --git a/全自动水压检测仪/Report.cs b/全自动水压检测仪/Report.cs
index 0794c0d..9c3e78f 100644
--- a/全自动水压检测仪/Report.cs
+++ b/全自动水压检测仪/Report.cs
@@ -121,7 +121,16 @@ namespace 全自动水压检测仪
             dataGridView.Columns.Clear();
             dataGridView.ScrollBars = ScrollBars.Both;
 
-
+            // 添加复选框列（放在最前面）
+            DataGridViewCheckBoxColumn selectColumn = new DataGridViewCheckBoxColumn
+            {
+                Name = "SelectColumn",
+                HeaderText = "选择",
+                Width = 50,
+                SortMode = DataGridViewColumnSortMode.NotSortable,
+                DefaultCellStyle = { Alignment = DataGridViewContentAlignment.MiddleCenter }
+            };
+            dataGridView.Columns.Add(selectColumn);
             var config = ConfigurationManager.AppSettings;
             if (config["AllowModified"]?.ToString() == "1")
             {
@@ -373,7 +382,7 @@ namespace 全自动水压检测仪
             // 导出报表按钮
             btnExport = new Button
             {
-                Text = "导出报表",
+                Text = "导出选中报表",
                 Width = 100,
                 Height = 35,
                 Font = new Font(this.Font, FontStyle.Regular),
@@ -408,7 +417,7 @@ namespace 全自动水压检测仪
             // 导出报表按钮
             btnDelete = new Button
             {
-                Text = "一键清除",
+                Text = "清除选中",
                 Width = 100,
                 Height = 35,
                 Font = new Font(this.Font, FontStyle.Regular),
@@ -574,6 +583,13 @@ namespace 全自动水压检测仪
                 });
                 dataGridView.DataSource = CurrentReport;
 
+
+                foreach (DataGridViewRow row in dataGridView.Rows)
+                {
+                    if (row.Cells["SelectColumn"].Value == null)
+                        row.Cells["SelectColumn"].Value = false;
+                }
+
                 // 刷新显示
                 dataGridView.Refresh();
 
@@ -684,14 +700,47 @@ namespace 全自动水压检测仪
                 }
             }
         }
-        /// <summary>
-        /// 导出报表按钮点击事件
-        /// </summary>
+        ///// <summary>
+        ///// 导出报表按钮点击事件
+        ///// </summary>
+        //private void BtnExport_Click(object sender, EventArgs e)
+        //{
+        //    ExportReport();
+        //}
         private void BtnExport_Click(object sender, EventArgs e)
         {
-            ExportReport();
-        }
+            // 获取选中的行
+            var selectedItems = dataGridView.Rows.Cast<DataGridViewRow>()
+                .Where(row => row.Cells["SelectColumn"].Value != null && (bool)row.Cells["SelectColumn"].Value)
+                .Select(row => row.DataBoundItem as ConductivityTestData)
+                .Where(item => item != null)
+                .ToList();
 
+            if (selectedItems.Count == 0)
+            {
+                MessageBox.Show("请至少选择一行数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            try
+            {
+                SaveFileDialog saveFileDialog = new SaveFileDialog();
+                saveFileDialog.Filter = "Excel文件|*.xlsx";
+                saveFileDialog.Title = "导出报表";
+                saveFileDialog.FileName = $"测试报表_{DateTime.Now:yyyyMMdd_HHmmss}";
+
+                if (saveFileDialog.ShowDialog() == DialogResult.OK)
+                {
+                    ExportToExcel(saveFileDialog.FileName, selectedItems);
+                    MessageBox.Show($"报表已成功导出到：\n{saveFileDialog.FileName}", "导出成功",
+                        MessageBoxButtons.OK, MessageBoxIcon.Information);
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"导出报表失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
         /// <summary>
         /// 返回按钮点击事件
         /// </summary>
@@ -700,205 +749,141 @@ namespace 全自动水压检测仪
             ReturnToMain();
         }
 
-        /// <summary>
-        /// 返回按钮点击事件
-        /// </summary>
-        private void BtnDelete_Click(object sender, EventArgs e)
-        {
-            DialogResult ask = MessageBox.Show("此操作会清空所有历史数据,请先导出？",
-                "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
-            if (ask == DialogResult.Yes)
-            {
-                CurrentReport.Clear();
-                dataGridView.DataSource = new List<ConductivityTestData>();
-                _repository.DeleteTestAllItems();
-
-
-                // 刷新显示
-                dataGridView.Refresh();
-            }
-        }
-
-
-
-
-        /// <summary>
-        /// 导出报表功能
-        /// </summary>
-        private void ExportReport()
-        {
-            //if (CurrentReport == null || CurrentReport.Count == 0)
-            //{
-            //    MessageBox.Show("没有数据可以导出", "提示",
-            //        MessageBoxButtons.OK, MessageBoxIcon.Information);
-            //    return;
-            //}
-
-            try
-            {
-                SaveFileDialog saveFileDialog = new SaveFileDialog();
-                saveFileDialog.Filter = "CSV文件|*.csv|Excel文件|*.xlsx|文本文件|*.txt";
-                saveFileDialog.Title = "导出报表";
-                saveFileDialog.FileName = $"测试报表_{DateTime.Now:yyyyMMdd_HHmmss}";
-
-                if (saveFileDialog.ShowDialog() == DialogResult.OK)
-                {
-                    string filePath = saveFileDialog.FileName;
-
-
-                    //switch (Path.GetExtension(filePath).ToLower())
-                    //{
-                    //case ".csv":
-                    //    ExportToCsv(filePath);
-                    //    break;
-                    //case ".txt":
-                    //    ExportToTxt(filePath);
-                    //    break;
-                    //case ".xlsx":
-                    ExportToExcel(filePath);
-                    //        break;
-                    //    default:
-                    //        ExportToCsv(filePath);
-                    //        break;
-                    //}
-
-                    MessageBox.Show($"报表已成功导出到：\n{filePath}", "导出成功",
-                        MessageBoxButtons.OK, MessageBoxIcon.Information);
-                }
-            }
-            catch (Exception ex)
-            {
-                MessageBox.Show($"导出报表失败：{ex.Message}", "错误",
-                    MessageBoxButtons.OK, MessageBoxIcon.Error);
-            }
-        }
-        /// <summary>
-        /// 导出为Excel文件（简单实现）
-        /// </summary>
-        //private void ExportToExcel(string filePath)
+        ///// <summary>
+        ///// 返回按钮点击事件
+        ///// </summary>
+        //private void BtnDelete_Click(object sender, EventArgs e)
         //{
-        //    using (var package = new ExcelPackage())
+        //    DialogResult ask = MessageBox.Show("此操作会清空所有历史数据,请先导出？",
+        //        "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+        //    if (ask == DialogResult.Yes)
         //    {
-        //        var worksheet = package.Workbook.Worksheets.Add("测试数据报表");
-
-        //        // 设置默认样式
-        //        worksheet.Cells.Style.Font.Name = "微软雅黑";
-        //        worksheet.Cells.Style.Font.Size = 11;
-
-        //        int currentRow = 1;
-
-        //        // 主标题
-        //        worksheet.Cells[currentRow, 1, currentRow, 9].Merge = true;
-        //        var titleCell = worksheet.Cells[currentRow, 1];
-        //        titleCell.Value = "测试数据报表";
-        //        titleCell.Style.Font.Size = 16;
-        //        titleCell.Style.Font.Bold = true;
-        //        titleCell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
-        //        titleCell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
-
-        //        currentRow++;
-
-        //        // 副标题
-        //        worksheet.Cells[currentRow, 1, currentRow, 9].Merge = true;
-        //        var subTitleCell = worksheet.Cells[currentRow, 1];
-        //        subTitleCell.Value = $"生成时间：{DateTime.Now:yyyy-MM-dd HH:mm:ss} | 记录数量：{CurrentReport.Count}条";
-        //        subTitleCell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
-        //        subTitleCell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
-
-        //        currentRow += 2;
-
-        //        // 表头
-        //        string[] headers = { "编号", "联络单号", "件号", "刻字号", "数量", "初始压力(PSI)", "开始时间", "结束时间", "结束压力(PSI)", "保压时间(h)", "压差(PSI)", "温度模式", "温度", "标准差值(PSI)", "测试结果", "时间日期" };
-
-        //        for (int i = 0; i < headers.Length; i++)
-        //        {
-        //            var cell = worksheet.Cells[currentRow, i + 1];
-        //            cell.Value = headers[i];
-        //            cell.Style.Font.Bold = true;
-        //            cell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
-        //            cell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
-        //            cell.Style.Fill.PatternType = ExcelFillStyle.Solid;
-        //            cell.Style.Fill.BackgroundColor.SetColor(Color.LightSkyBlue);
-        //            cell.Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.Black);
-
-        //            // 设置列宽
-        //            worksheet.Column(i + 1).Width = 15;
-        //        }
-
-        //        // 设置表头行高
-        //        worksheet.Row(currentRow).Height = 35;
-
-        //        currentRow++;
-
-        //        // 数据行
-        //        foreach (var data in CurrentReport)
-        //        {
-        //            string tempMode = GetTemperatureModeDisplay(data.Type);
-
-        //            worksheet.Cells[currentRow, 1].Value = data.Id;
-        //            worksheet.Cells[currentRow, 2].Value = data.lldh ?? "";
-        //            worksheet.Cells[currentRow, 3].Value = data.jh ?? "";
-
-        //            worksheet.Cells[currentRow, 4].Value = data.kzh ?? "";
-        //            worksheet.Cells[currentRow, 5].Value = data.quantity;
-        //            worksheet.Cells[currentRow, 6].Value = data.startpressure;
+        //        CurrentReport.Clear();
+        //        dataGridView.DataSource = new List<ConductivityTestData>();
+        //        _repository.DeleteTestAllItems();
 
 
-
-
-        //            worksheet.Cells[currentRow, 7].Value = data.starttime;
-        //            worksheet.Cells[currentRow, 8].Value = data.endtime;
-
-        //            worksheet.Cells[currentRow, 9].Value = data.endpressure;
-        //            worksheet.Cells[currentRow, 10].Value = data.dwelltime;
-
-        //            worksheet.Cells[currentRow, 11].Value = data.diffpressure;
-        //            worksheet.Cells[currentRow, 12].Value = tempMode;
-        //            worksheet.Cells[currentRow, 13].Value = data.temperature;
-        //            worksheet.Cells[currentRow, 14].Value = data.standarderror;
-        //            worksheet.Cells[currentRow, 15].Value = data.testresult;
-
-        //            worksheet.Cells[currentRow, 16].Value = data.CreateTime;
-
-
-        //            // 设置数据行样式
-        //            for (int col = 1; col <= 9; col++)
-        //            {
-        //                var cell = worksheet.Cells[currentRow, col];
-        //                cell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
-        //                cell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
-        //                cell.Style.Border.BorderAround(ExcelBorderStyle.Thin, Color.LightGray);
-
-        //                // 隔行变色
-        //                if (currentRow % 2 == 0)
-        //                {
-        //                    cell.Style.Fill.PatternType = ExcelFillStyle.Solid;
-        //                    cell.Style.Fill.BackgroundColor.SetColor(Color.AliceBlue);
-        //                }
-        //            }
-
-        //            // 设置格式
-        //            worksheet.Cells[currentRow, 4].Style.Numberformat.Format = "yyyy-mm-dd hh:mm:ss";
-        //            worksheet.Cells[currentRow, 5].Style.Numberformat.Format = "0.00";
-        //            worksheet.Cells[currentRow, 6].Style.Numberformat.Format = "0.00";
-        //            worksheet.Cells[currentRow, 7].Style.Numberformat.Format = "0.00";
-        //            worksheet.Cells[currentRow, 8].Style.Numberformat.Format = "0.0";
-
-        //            // 设置行高
-        //            worksheet.Row(currentRow).Height = 25;
-
-        //            currentRow++;
-        //        }
-
-        //        // 自动调整列宽
-        //        worksheet.Cells[worksheet.Dimension.Address].AutoFitColumns();
-
-        //        // 保存
-        //        package.SaveAs(new FileInfo(filePath));
+        //        // 刷新显示
+        //        dataGridView.Refresh();
         //    }
         //}
 
-        private void ExportToExcel(string filePath)
+        private void BtnDelete_Click(object sender, EventArgs e)
+        {
+            // 获取选中的行
+            var selectedRows = dataGridView.Rows.Cast<DataGridViewRow>()
+                .Where(row => row.Cells["SelectColumn"].Value != null && (bool)row.Cells["SelectColumn"].Value)
+                .ToList();
+
+            if (selectedRows.Count == 0)
+            {
+                MessageBox.Show("请至少选择一行数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+
+            DialogResult ask = MessageBox.Show($"确定要删除选中的 {selectedRows.Count} 条数据吗？",
+                "确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
+            if (ask == DialogResult.Yes)
+            {
+                try
+                {
+                    // 收集要删除的ID
+                    List<int> idsToDelete = new List<int>();
+                    foreach (var row in selectedRows)
+                    {
+                        var data = row.DataBoundItem as ConductivityTestData;
+                        if (data != null && data.Id > 0)
+                        {
+                            idsToDelete.Add(data.Id);
+                        }
+                    }
+
+                    // 调用仓储删除方法（假设有一个批量删除的方法）
+                    // 如果只有单个删除，则循环调用
+                    foreach (int id in idsToDelete)
+                    {
+                        _repository.DeleteTestAllItems(id); // 需要在 Repository 中实现此方法
+                    }
+
+                    // 从内存数据源中移除被删除的对象
+                    CurrentReport.RemoveAll(d => idsToDelete.Contains(d.Id));
+
+                    // 重新绑定数据源（或直接刷新显示）
+                    dataGridView.DataSource = null;
+                    dataGridView.DataSource = CurrentReport;
+
+                    // 刷新序号（Id 列显示行号）
+                    for (int i = 0; i < CurrentReport.Count; i++)
+                    {
+                        CurrentReport[i].row = i + 1;
+                    }
+
+                    dataGridView.Refresh();
+
+                    MessageBox.Show($"已删除 {selectedRows.Count} 条数据。", "操作完成",
+                        MessageBoxButtons.OK, MessageBoxIcon.Information);
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show($"删除失败：{ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+
+        ///// <summary>
+        ///// 导出报表功能
+        ///// </summary>
+        //private void ExportReport()
+        //{
+        //    //if (CurrentReport == null || CurrentReport.Count == 0)
+        //    //{
+        //    //    MessageBox.Show("没有数据可以导出", "提示",
+        //    //        MessageBoxButtons.OK, MessageBoxIcon.Information);
+        //    //    return;
+        //    //}
+
+        //    try
+        //    {
+        //        SaveFileDialog saveFileDialog = new SaveFileDialog();
+        //        saveFileDialog.Filter = "CSV文件|*.csv|Excel文件|*.xlsx|文本文件|*.txt";
+        //        saveFileDialog.Title = "导出报表";
+        //        saveFileDialog.FileName = $"测试报表_{DateTime.Now:yyyyMMdd_HHmmss}";
+
+        //        if (saveFileDialog.ShowDialog() == DialogResult.OK)
+        //        {
+        //            string filePath = saveFileDialog.FileName;
+
+
+        //            //switch (Path.GetExtension(filePath).ToLower())
+        //            //{
+        //            //case ".csv":
+        //            //    ExportToCsv(filePath);
+        //            //    break;
+        //            //case ".txt":
+        //            //    ExportToTxt(filePath);
+        //            //    break;
+        //            //case ".xlsx":
+        //            ExportToExcel(filePath);
+        //            //        break;
+        //            //    default:
+        //            //        ExportToCsv(filePath);
+        //            //        break;
+        //            //}
+
+        //            MessageBox.Show($"报表已成功导出到：\n{filePath}", "导出成功",
+        //                MessageBoxButtons.OK, MessageBoxIcon.Information);
+        //        }
+        //    }
+        //    catch (Exception ex)
+        //    {
+        //        MessageBox.Show($"导出报表失败：{ex.Message}", "错误",
+        //            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        //    }
+        //}
+
+
+        private void ExportToExcel(string filePath, List<ConductivityTestData> dataList)
         {
             using (var package = new ExcelPackage())
             {
@@ -927,7 +912,7 @@ namespace 全自动水压检测仪
                 // 副标题
                 worksheet.Cells[currentRow, 1, currentRow, 16].Merge = true;
                 var subTitleCell = worksheet.Cells[currentRow, 1];
-                subTitleCell.Value = $"生成时间：{DateTime.Now:yyyy-MM-dd HH:mm:ss} | 记录数量：{CurrentReport.Count}条";
+                subTitleCell.Value = $"生成时间：{DateTime.Now:yyyy-MM-dd HH:mm:ss} | 记录数量：{dataList.Count}条";
                 subTitleCell.Style.Font.Size = 11;
                 subTitleCell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
                 subTitleCell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
@@ -981,7 +966,7 @@ namespace 全自动水压检测仪
                 currentRow++;
 
                 // 数据行
-                foreach (var data in CurrentReport)
+                foreach (var data in dataList)
                 {
                     string tempMode = GetTemperatureModeDisplay(data.Type);