Use theDistinctoperator to eliminate duplicate elements from a sequence. Example The following example usesDistinctto select a sequence of the unique cities that have customers. VB DimcityQuery = _ (FromcustIndb.Customers _Selectcust.City).Distinct()ForEachcityStringIncityQuery Console.WriteLine(c...
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使用Distinct 运算符可从序列中消除重复元素。 示例 下面的示例使用 Distinct 来选择有客户的唯一城市序列。 C# 复制 IQueryable<String> cityQuery = (from cust in db.Customers select cust.City).Distinct(); foreach (String cityString in cityQuery) { Console.WriteLine(cityString); } 请参阅 查询...
使用Distinct 運算子去除序列中重複的項目。範例下列範例使用 Distinct 來選取一連串具有客戶的唯一城市。C# 複製 IQueryable<String> cityQuery = (from cust in db.Customers select cust.City).Distinct(); foreach (String cityString in cityQuery) { Console.WriteLine(cityString); } ...