光脚丫学LINQ(011)：对源元素执行操作

// Data source.   
double[] Radii = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };   
  
// Results.   
IEnumerable<string> Results =   
    from Rad in Radii   
    select String.Format("Area = {0}", (Rad * Rad) * 3.14);   
  
// Results execution.    
foreach (string Result in Results)   
    Console.WriteLine(Result);   
  
// Keep the console open in debug mode.   
Console.WriteLine("Press any key to exit.");   
Console.ReadKey()  
// Data source.
double[] Radii = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

// Results.
IEnumerable<string> Results =
    from Rad in Radii
    select String.Format("Area = {0}", (Rad * Rad) * 3.14);

// Results execution. 
foreach (string Result in Results)
    Console.WriteLine(Result);

// Keep the console open in debug mode.
Console.WriteLine("Press any key to exit.");
Console.ReadKey() 

Area = 3.14   
Area = 12.56   
Area = 28.26   
Area = 50.24   
Area = 78.5   
Area = 113.04   
Area = 153.86   
Area = 200.96   
Area = 254.34