public void DoTestRef()
{
TestRef testRef = new TestRef();
testRef.Name = "1";
Console.WriteLine(testRef.Name);
ChangeName(testRef);
Console.WriteLine(testRef.Name);
string sint = "";
ChangeName(sint);
Console.WriteLine(sint);
}
public void ChangeName(TestRef testRef)
{
testRef.Name = "testRef";
}