提取数据时，数据优先，覆盖公式

performance/Performance.Services/ExtractExcelService/ExtractHelper/ExcelHelper.cs

@@ -51,14 +51,17 @@ public static void SetCellValue<T>(this ICell cell, object value, T defaultValue
                     #region SetValue
 
                     case "System.String"://字符串类型
+                        cell.SetCellType(CellType.String);
                         cell.SetCellValue(ConvertHelper.To<string>(value));
                         break;
 
                     case "System.DateTime"://日期类型
+                        cell.SetCellType(CellType.String);
                         cell.SetCellValue(ConvertHelper.To<DateTime>(value).ToString("yyyy/M/d"));
                         break;
 
                     case "System.Boolean"://布尔型
+                        cell.SetCellType(CellType.String);
                         cell.SetCellValue(ConvertHelper.To<bool>(value));
                         break;
 
@@ -66,16 +69,19 @@ public static void SetCellValue<T>(this ICell cell, object value, T defaultValue
                     case "System.Int32":
                     case "System.Int64":
                     case "System.Byte":
+                        cell.SetCellType(CellType.Numeric);
                         cell.SetCellValue(ConvertHelper.To<int>(value));
                         break;
 
                     case "System.Decimal"://浮点型
                     case "System.Double":
+                        cell.SetCellType(CellType.Numeric);
                         cell.SetCellValue(ConvertHelper.To<double>(value));
                         break;
 
                     case "System.DBNull"://空值处理
                     default:
+                        cell.SetCellType(CellType.String);
                         cell.SetCellValue("");
                         break;
 
@@ -84,6 +90,7 @@ public static void SetCellValue<T>(this ICell cell, object value, T defaultValue
             }
             catch
             {
+                cell.SetCellType(CellType.String);
                 cell.SetCellValue("");
             }
         }