using System; class Hello { static void Main() { Console.WriteLine("hello, world"); } }The source code for a C# program is typically stored in one or more text files with a file extension of .cs, as in hello.cs. Using a command-line compiler, such a program can be compiled with a command line like
csc hello.cswhich produces an application named hello.exe. The output produced by this application when it is run is:
hello, worldClose examination of this program is illuminating:
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