C#练习4

//错误的程序
using System;
class Test
{
    unsafe static void WriteLocations(byte[]arr)
    {
        fixed(byte*p_arr=arr)
        {
            byte* p_elem = p_arr;
            for(int i=0;i<arr.Length;i++)
                byte value=*p_elem;
            string addr=int.Format((int)p_elem,"x");
            Console.WriteLine("arr[{0}]at0x{1}is{2}",i,addr,value);
            p_elem++;
        }
    }
}
static void Main()
{
byte[]Array=new byte[]{1,2,3,4,5};
WriteLocations(arr);
}

static void Main()
{
F();
G();
{
H();
I();
}
}

static void Main(String[]args)
{
if(args.Length==0)
goto done;
Console.WriteLine(args.Length);
done:
Console.WriteLine("Done");
}

static void Main()
{
const float pi=3.14;
const int r=123;
Console.WriteLine(pi*i*i);
}

static void Main()
{
int a;
int b=2,c=3;
a=1;
Console.WriteLine(a+b+c);
}

static int F