string p = TextBox14.Text;
string q = TextBox15.Text;
string r = TextBox16.Text;
string t = TextBox17.Text;
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|db1.mdb";
OleDbCommand comm = new OleDbCommand();
conn.Open();
comm.Connection = conn;
comm.CommandText = "UPDATE [userdetail] SET [username]='" + z + "',[sex]='" + b + "',[age]='" + c + "',[nativeplace]='" + d + "',[tel]='" + s + "',[email]='" + k + "',[xueli]='" + g + "',[school]='" + f + "',[position]='" + i + "',[english]='" + y + "',[jybj]='" + m + "',[gzjl]='" + n + "',[zytc]='" + o + "',[zycg]='" + p + "',[jtqk]='" + q + "',[xqah]='" + r + "',[qzyx]='" + t + "' WHERE [tel] ='" + x + "'";
string p = TextBox14.Text;
string q = TextBox15.Text;
string r = TextBox16.Text;
string t = TextBox17.Text;
OleDbConnection conn = new OleDbConnection();
conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|db1.mdb";
OleDbCommand comm = new OleDbCommand();
conn.Open();
comm.Connection = conn;
comm.CommandText ="update userdetail set username='a',sex='b',age='c',nativeplace='d',tel='s',email='k',xueli='g',school='f',position='i',english='y',jybj='m',gzjl='n',zytc='o',zycg='p',jtqk='q',xqah='r',qzyx='t' where tel ='x'";