/// <summary>
/// 获取SQL语句执行的第一行第一列的值
/// </summary>
/// <param name="strSql">SQL语句</param>
/// <returns>SQL语句执行的第一行第一列的值</returns>
public static object ExecuteScalar(string strSql)
{
DbCore dbCore = null;
object obj = null;
try
{
dbCore = new DbCore(GetDatabaseType(), GetConnectionString());
dbCore.Open();
obj = dbCore.ExecuteScalar(strSql);
dbCore.Close();
return(obj);
}
catch (Exception ex)
{
if (dbCore != null)
{
dbCore.Close();
}
throw ex;
}
}