List<string> Data = http://www.mamicode.com/new List();"功夫撒黑胡椒hcbvf蜂窝qwertyuiopasdfghjklzxcvbnm法国的恢复到飞范德萨QWERTYUIOPASDFGHJKLZXCVBNM出现过热423贴①46546也有一头热刚恢复到贴3天赋如头3广泛的我让他";        Random rd = new Random(GetRandomSeed());        static int GetRandomSeed()        {            byte[] bytes = new byte[4];            System.Security.Cryptography.RNGCryptoServiceProvider rng = new System.Security.Cryptography.RNGCryptoServiceProvider();            rng.GetBytes(bytes);            return BitConverter.ToInt32(bytes, 0);        }        public Form1()        {            InitializeComponent();            for (int i = 0; i < 20000000; i++)            {                Data.Add(Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString()                    + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString()                    + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString()                    + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString()                    + Randomstr.ToCharArray()[rd.Next(Randomstr.Length)].ToString());            }            this.textBox1.AutoCompleteCustomSource.Clear();            this.textBox1.AutoCompleteCustomSource.AddRange(Data.ToArray());            this.textBox1.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.SuggestAppend;            this.textBox1.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.CustomSource;        }