class1.cs

C#开发教程 由浅入深 配有实例 是初学者的好帮手

using System;

namespace UnaryOps
{
	class UnaryOpsApp
	{
		[STAThread]
		static void Main(string[] args)
		{
			int a;
			a = -42;
			Console.WriteLine("{0}", a);

			int b = 2;
			int c = 42;

//			a = b * -c;
			// With parentheses, it's obvious that you're  
			// multiplying b by the negative of c.
			a = b * (-c); 
			Console.WriteLine("{0}", a);

			c = -42;
			a = b * (+c);
			Console.WriteLine("{0}", a);

			a = b * (+-42);
			Console.WriteLine("{0}", a);

			a = b * (0+-42);
			Console.WriteLine("{0}", a);
		}
	}
}