2015-10-19 49 views

回答

1

這會告訴你,如果有存在重複

Dim dups As Boolean = Not aNumbers.Distinct.Count.Equals(aNumbers.Length) 
    If dups Then 
     'there are duplicates 
    Else 
     'no duplicates 
    End If 
0

也許這樣的事情

使用LINQ

Dim aNumbers_filtered = From number In aNumbers _ 
        Group number By Key = number Into Group _ 
        Where Group.Count() > 1 
        Select Number = Key, NumberCount = Group.Count() 
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