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string strCon = "Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\grade.mdf;Integrated Security=True;User Instance=True";
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string strCon = "server=.\\SQLEXPRESS;database=sample;uid=sa;pwd=123456";
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2 using System.Collections.Generic;
3 using System.Collections.Specialized;
4 using System.Linq;
5 using System.Web;
6 using System.Text;
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