Brightsign HD2000 BrightScript Reference Guide Manual do Utilizador descarregar pdf (Página 11)

Not including the built-in string functions, there is only one string operation - concatenation, represented by

the plus symbol +.

Example Programs:

A$="A ROSE"

B$=" IS A ROSE"

C$=A$+B$+B$+B$+".'

PRINT C$

RUN

A ROSE IS A ROSE IS A ROSE IS A ROSE.

Logical Operators

We described how AND, OR and NOT can be used with relational expressions. For example,

100 IF A=C AND NOT(B>40) THEN 60 ELSE 50

AND, OR and NOT can also be used for bit manipulation, bitwise comparisons, and Boolean operations.

AND, OR and NOT convert their arguments to 32-bit, signed two's-complement integers. They then perform

the specified logical operation on them and return a result within the same range

The operations are performed in bitwise fashion; this means that each bit of the result is obtained by

examining the bit in the same position for each argument.

63 AND 16 = 16

-1 OR -2 = -1

Hex and Octal

Hex and octal constants use the following prefixes:

&H (hex constants)

&O (octal constants)

Example:

PRINT &H0ABC

RUN

2748

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 29 30

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Brightsign HD2000 BrightScript Reference Guide Manual do Utilizador Página 11