《深入理解C#》代码片段-List<T>.ConvertAll(TOutput)方法实战

 1         static void Main(string[] args)
 2         {
 3             List<int> integers = new List<int>();
 4             for (int i = 1; i < 5; i++)
 5             {
 6                 integers.Add(i);
 7             }
 8             Converter<int, double> converters = TakeSquareRoot;//创建委托实例
 9             List<double> doubles;
10             doubles = integers.ConvertAll<double>(converters);//调用泛型方法转换列表
11             foreach (var item in doubles)
12             {
13                 Console.WriteLine(item);
14             }
15
16             Console.ReadKey();
17         }
18
19         public static double TakeSquareRoot(int x)
20         {
21             return Math.Sqrt(x);
22         }