Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual de usuario descargar pdf (Pagina 114)

Operating Functions

Chapter 5

5–77

Example program 1:

uLIST

10 REM STRING ALLOCATION COMPUTATION KNOWING:

20 REM 1)# CHARACTERS IN LONGEST STRING 2)# OF STRING VARIABLES

30 PRINT : PRINT

40 INPUT “HOW MANY CHARACTERS IN YOUR LONGEST STRING”C

50 INPUT “HOW MANY STRING VARIABLES WILL YOU NEED”V

60 PRINT

70 N=(((C+1)*V)+1) : REM COMPUTE THE # OF BYTES OF MEMORY NEEDED

80 PRINT: PRINT

90 PRINT “YOU NEED TO ALLOCATE”,N,“BYTES OF MEMORY FOR”,V,“VARIABLES

100 PRINT ”CONTAINING”,C,“CHARACTERS EACH”

110 PRINT : PRINT

120 PRINT“ STRING”,N“,”,C

130 END

uRUN

HOW MANY CHARACTERS IN YOUR LONGEST STRING

?21

HOW MANY VARIABLES WILL YOU NEED

?15

YOU NEED TO ALLOCATE 331 BYTES OF MEMORY FOR 15 VARIABLES CONTAINING

21 CHARACTERS EACH

STRING 331, 21

READY

5.10.3

String Support Calls

(continued)

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 166 167

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Rockwell-automation 1771-DB Basic Module User Manual - Series A Manual de usuario Pagina 114