//去重数组 int[] a = new int[] { 1, 2, 3, 4, 5, 1, 2, 3 };
//去重方法 int[] RmRepeatingData(int[] a) { //1.linq去重 //var abc = (from num in a group num by num into g select new { g.Key }).ToArray(); //return abc; //2.lambda去重 return a.GroupBy(p => p).Select(p => p.Key).ToArray(); }
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