解决C#用随机数产生的坐标在对角线上

/// <summary>
/// 初始化坐标
/// </summary>
/// <returns></returns>
private Point InitPoint()
{
int x, y;
long tick = DateTime.Now.Ticks;
pointX = new Random(GetRandomSeed());
pointY = new Random(GetRandomSeed());
x = pointX.Next(0,this.panel1.Width-50);
y = pointY.Next(0,this.panel1.Height-50);
p = new Point(x, y);
return p;
}
/// <summary>
/// 随机生成种子数（摘抄）
/// </summary>
/// <returns></returns>
static int GetRandomSeed()
{
byte[] bytes = new byte[4];
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
rng.GetBytes(bytes);
return BitConverter.ToInt32(bytes, 0);
}