查了好多资料，都是newid()。可是newid()太慢了，需要等好几分钟
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- C# code
private static int GetNewSeed() { byte[] rndBytes = new byte[4]; RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider(); rng.GetBytes(rndBytes); return BitConverter.ToInt32(rndBytes, 0); }