参照型のパラメータの渡し方の違い

gistfile1.cs

	class Program{
		
		static void Main(string[] args){
			//参照型の値渡し
			TestClass t1 = new TestClass();
			TestClass t2 = ValMethod(t1);
			Console.WriteLine(t1 == t2);//false

			//参照型の参照渡し
			TestClass t3 = new TestClass();
			TestClass t4 = RefMethod(ref t3);
			Console.WriteLine(t3 == t4);//true

			Console.ReadLine();
		}

		static TestClass ValMethod(TestClass obj){
			obj = new TestClass();
			return obj;
		}

		static TestClass RefMethod(ref TestClass obj){
			obj = new TestClass();
			return obj;
		}

		class TestClass{
		}
	}