Repeat方法返回一个ArrayList，其元素是指定值的副本。
这意味着在此方法中，我们可以给出指定的值，然后将该值复制到ArrayList。

C# ArrayList中的Repeat方法示例

namespace ConsoleApplication3
{

  class Program
  {
      static void Main(string[] args)
      {

          //创建一个新的ArrayList  
          //并初始化为null
          ArrayList myArray = ArrayList.Repeat(null, 10);
          //查看ArrayList的   count, capacity 属性以及值

          Console.WriteLine("ArrayList with five elements with a null value");
          Console.WriteLine("   Count    : {0}", myArray.Count);
          Console.WriteLine("   Capacity : {0}", myArray.Capacity);
          Console.Write("   Values:");

          foreach (Object obj in myArray)
              Console.Write("   {0}", obj);
          Console.WriteLine();
          //创建一个新的ArrayList
          //每个元素都使用字符串Repeat进行初始化
          myArray = ArrayList.Repeat("Repeat", 5);
           //查看ArrayList的   count, capacity 属性以及值
          Console.WriteLine("ArrayList with seven elements with a string value");

          Console.WriteLine("   Count    : {0}", myArray.Count);
          Console.WriteLine("   Capacity : {0}", myArray.Capacity);
          Console.Write("   Values:");
          foreach (Object obj in myArray)

              Console.Write("   {0}", obj);
          Console.WriteLine();
      }
  }

}