移形幻影大法 C++程序员快速学习C#之二 （4）

class Class1
{
static void Main(string[] args)
{
int a=1,b=2;
Console.WriteLine ("{0} {1}",a,b);
change(ref a,ref b) ;
Console.WriteLine ("{0} {1}",a,b);
}
static void change(ref int a,ref int b)
{   
int c;
c=a;
a=b;
b=c;
}
}

1         2

2         1

struct mytext
{
public int num;
public int text()
{
return num;
}
}
class Class1
{
static void Main(string[] args)
{
mytext frist;
int a;
frist.num =5;
a=frist.text ();
Console.WriteLine ("{0}",a);
}
}