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					@ -309,7 +309,7 @@ namespace Apewer | 
				
			
			
		
	
		
			
				
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					        } | 
				
			
			
		
	
		
			
				
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					        /// <summary>对元素去重,且去除 NULL 值。</summary>
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					        public static T[] Distinct<T>(this IEnumerable<T> items) | 
				
			
			
		
	
		
			
				
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					        public static T[] Distinct<T>(IEnumerable<T> items) | 
				
			
			
		
	
		
			
				
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					        { | 
				
			
			
		
	
		
			
				
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					            if (items == null) throw new ArgumentNullException(nameof(items)); | 
				
			
			
		
	
		
			
				
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					            var count = Count(items); | 
				
			
			
		
	
	
		
			
				
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