单次特性和多次特性 using System; using System.Reflection; [AttributeUsage(AttributeTargets.All,AllowMultiple=true)] //不指定AllowMultiple=true编译汇报错,C#特性默认是单次 public class SingleUseAttribute:Attribute { public SingleUseAttribute(string str) { } } [SingleUse("aaa")] [SingleUse("bbb")] public class ServerClass { } public class ClientClass { public static void Main() { } }

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