/// <summary>
/// 根据条件批量删除数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="condition">删除条件</param>
/// <returns>返回受影响的行数</returns>
public static int deleteBatch <T>(String condition) where T : IEntity
{
return(ObjectDB.DeleteBatch(typeof(T), condition));
}