Size : UDINT; xOk : BOOL [...] string in bytes STR.RuneCount [...] Length : UDINT; xOk : BOOL

8.RUNE; xOk : BOOL [...] 量（→ RuneCount ) 例 6 [...] Size, udiRuneCount

Ok : BOOL; END_VAR x [...] String.Len() = 133 AND STR.RuneCount