这段代码怎么写，急啊，在线等

[huhan3]

vb.net的代码，改为C# 怎么写，主要是do,loop, 和exit do ,谢谢了
Do

foodpt = GetRandomPoint()

If Not (m_snake Is Nothing) Then
If Not m_snake.PointOnSnake(foodpt) Then Exit Do
Else
Exit Do
End If

Loop

[jjcccc]

while (true)
{
foodpt = GetRandomPoint();

if (m_snake == null)
if (!m_snake.PointOnSnake(foodpt))
break;
else
break;
}

[zlcoolzl]

while (true)
{
foodpt = GetRandomPoint();

if (m_snake == null)
if (!m_snake.PointOnSnake(foodpt))
break;
else
break;
}