List<Type> 随机

public List<T> GetRandomList<T>(List<T> inputList)
{
//Copy to a array
T[] copyArray = new T[inputList.Count];
inputList.CopyTo(copyArray);

//Add range
List<T> copyList = new List<T>();
copyList.AddRange(copyArray);

//Set outputList and random
List<T> outputList = new List<T>();
Random rd = new Random(DateTime.Now.Millisecond);

while (copyList.Count > 0)
{
//Select an index and item
int rdIndex = rd.Next(0, copyList.Count - 1);
T remove = copyList[rdIndex];

//remove it from copyList and add it to output
copyList.Remove(remove);
outputList.Add(remove);
}
return outputList;
}