function Add(AIndex: Integer; const AValue: WideString): TXLSXChartCachePoint; procedure Assign(Source: TXLSXChartDataCache); procedure Clear; property Kind: TXLSXChartCacheKind; property FormatCode: WideString; property Count: Integer; property Points[Index: Integer]: TXLSXChartCachePoint;
| xlsxChartCacheNone | 不写入任何缓存 |
| xlsxChartCacheString | 写入字符串缓存或字面量点序列 |
| xlsxChartCacheNumber | 写入数值缓存或带数字格式的字面量点序列 |