using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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namespace Pcb.Common.Extension
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{
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public static class EnumExtension
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{
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public static string GetNote(this System.Enum value)
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{
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var field = value.GetType().GetField(value.ToString());
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var attributes = (NoteAttribute[])field.GetCustomAttributes(typeof(NoteAttribute), false);
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if (attributes.Length == 0)
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{
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return string.Empty;
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}
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else
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{
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return attributes[0].Note;
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}
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}
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#region 戴雁冰扩展
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/// <summary>
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/// 变量名转成枚举值
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/// </summary>
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/// <typeparam name="TEnum">枚举类型</typeparam>
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/// <param name="Name">名称(数值开头时会在前面加上下划线"_")</param>
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/// <param name="DefValue">默认值</param>
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/// <param name="IgnoreCase">忽略大小写</param>
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/// <returns>值</returns>
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public static TEnum _ToEnumValue<TEnum>(this string Name, TEnum DefValue, bool IgnoreCase = true) where TEnum : struct
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{
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TEnum enm;
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return System.Enum.TryParse<TEnum>(_HasHeaderNumber.IsMatch(Name) ? "_" + Name : Name, IgnoreCase, out enm) ? enm : DefValue;
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}
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static Regex _HasHeaderNumber = new Regex(@"^\d");
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#endregion
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}
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}
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