C# Remove Duplicates in List
有好多个方法实现
1. 用一个Dictionary实现。
参考代码
static List<string> removeDuplicates(List<string> inputList) { Dictionary<string, int> uniqueStore = new Dictionary<string, int>(); List<string> finalList = new List<string>(); foreach (string currValue in inputList) { if (!uniqueStore.ContainsKey(currValue)) { uniqueStore.Add(currValue, 0); finalList.Add(currValue); } } return finalList; }
2. 用LINQ的Distinct方法。
简单的List 直接用就可以了 http://www.dotnetperls.com/remove-duplicates-list
如果是要Distinct一个类,要 Custom Comparer , 方法嘛。看这里:
http://msdn.microsoft.com/en-us/library/bb338049.aspx