public string GetToken()
{
string result;
SqlParameter[] para = new SqlParameter[]
{
new SqlParameter("@len", SqlDbType.Int, 1),
new SqlParameter("@token", SqlDbType.VarChar, 6)
};
para[0].Value = 6;
para[1].Value = "";
para[1].Direction = ParameterDirection.Output;
operate.ExecuteStoredPro("Pro_Token", para, out result, 1);
return(result);
}