风光大葬

Ramitta/Excel.cs

@@ -7,7 +7,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace Ramitta
+namespace Ramitta.Excellib
 {
     public static class Excel
     {
@@ -165,5 +165,27 @@ namespace Ramitta
             }
             return true;
         }
+
+        public static ICell? getRowCell(ISheet sheet, int rowIndex, int cellIndex)
+        {
+            IRow row = sheet.GetRow(rowIndex);
+            if (row == null) return null;
+
+            ICell cell = row.GetCell(cellIndex);
+            if (cell == null) return null;
+
+            return cell;
+        }
+        public static String? getRowCellStr(ISheet sheet, int rowIndex, int cellIndex)
+        {
+            var cellValue = getRowCell(sheet, rowIndex, cellIndex)?.ToString();
+            return string.IsNullOrWhiteSpace(cellValue) ? null : cellValue;
+        }
+
+        // 简短版本
+        public static int ColToIndex(string col)
+        {
+            return col.ToUpper().Aggregate(0, (cur, ch) => cur * 26 + (ch - 'A'));
+        }
     }
 }