Builder.Len(); // The number of bytes [...] Size : UDINT; xOk : BOOL [...] of the string in

String); // Current number of [...] 8.RUNE; xOk : BOOL [...] 量（→ RuneCount ) 例 6

内存的处理（例如类型 ARRAY OF BYTE [...] ..32] OF BYTE [...] ); // Capacity of the string