SqlSugar.ResolveExpress.AddParas C# (CSharp) Method

        private string AddParas(ref string left, object right)
        {
            string oldLeft = left;
            left = left + SameIndex;
            SameIndex++;
            if (Type != ResolveExpressType.OneT)
            {
                left = left.Replace(".", "_");
            }
            if (right == null)
            {
                this.Paras.Add(new SqlParameter(SqlSugarTool.ParSymbol + left, DBNull.Value));
            }
            else
            {
                this.Paras.Add(new SqlParameter(SqlSugarTool.ParSymbol + left, right));
            }
            return oldLeft;
        }