(ContextType.ListContext & ContextType.ListParam & ContextType.ListWarning).HasFlag(it4.ContextType)
1.添加[Flags]特性
2.用枚举的HasFlag方法
(ContextType.ListContext & ContextType.ListParam & ContextType.ListWarning).HasFlag(it4.ContextType)
1.添加[Flags]特性
2.用枚举的HasFlag方法