How to exit a program with an exit code: C#

How to exit a program with an开发者_如何学运维 exit code in C#? In java it would be System.exit(int code);

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Either:

• Declare your Main function as returning int, and return a value from it, or
• Call Environment.Exit(int)

Returning a value from Main is a little nicer than exiting the process in the middle of a method, but this is presumably the same advice that applies to Java, C or C++.