/// <summary>
/// 获取表结构信息
/// </summary>
/// <param name="db"></param>
/// <param name="tableName"></param>
/// <returns></returns>
public List <PubModel.DataTableMap> GetTableColumns(SqlSugarClient db, string tableName)
{
string sql = SqlSugarTool.GetTtableColumnsInfo(tableName);
return(db.SqlQuery <PubModel.DataTableMap>(sql));
}