20220313 3张表格 导出excel功能

20220313_Excel/TempTask.WebEntry/Tools/EnumHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace TempTask.WebEntry.Tools
+{
+    public class EnumHelper
+    {
+        /// <summary>
+        /// 得到枚举的DescriptionAttribute值。
+        /// </summary>
+        /// <typeparam name="TEnum"></typeparam>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        static public string GetEnumDescription<TEnum>(object value)
+        {
+            Type enumType = typeof(TEnum);
+            if (!enumType.IsEnum)
+                throw new ArgumentException("不是枚举类型");
+            var name = Enum.GetName(enumType, value);
+            if (name == null)
+                return string.Empty;
+            object[] objs = enumType.GetField(name).GetCustomAttributes(typeof(DescriptionAttribute), false);
+            if (objs == null || objs.Length == 0)
+                return string.Empty;
+            DescriptionAttribute attr = objs[0] as DescriptionAttribute;
+            return attr.Description;
+        }
+    }
+}