Denso RC5 Dokumentacja Pobierz pdf (Strona 265)

100

101

Chapter 11 Flow Control Statements

11-15

REPEAT-UNTIL (Statement)

Function

Executes a tail decision iteration.

Format

REPEAT

UNTIL [<Conditional expression>]

Explanation

This statement repeats statements between a REPEAT statement and an

UNTIL statement until <Conditional expression> is satisfied.

If <Conditional expression> is ignored, it is regarded as true (except for 0) and

a loop is executed only once.

There is also a DO-LOOP UNTIL statement which serves the same function as

REPEAT-UNTIL, but only DO-LOOP UNTIL should be used.

Related Terms

DO-LOOP, WHILE-WEND

Example

DEFINT li1, li2, li3, li4, li5, li6, li7, li8, li9

DO WHILE li1 > li2 'Executes a head decision iteration.

IFli1=4THENEXITDO 'ExitsfromDO-LOOPifli1=4.

FORli3=0TO5 'RepeatsaprocessofFOR-NEXT5times.

FOR li4 = li5 TO li6 'Repeats the process of FOR-NEXT by adding 1 to the

value

'of li5 every time the repetition is done until li5

becomes

'the value of li6.

FORli7=1TOli8STEP2 'RepeatstheprocessofFOR-NEXTbyadding2tothe

'value every time the repetition is done from 1 until

'it becomes li8.

IFli2=2THENEXITFOR 'ExitsfromFOR-NEXTifli2<0.

WHILE li2 < li9 'Executes a head decision iteration.

GOSUB *samp2

li9=li9+1

WEND 'Calls a GOSUB *samp2 statement until li2 < li9.

NEXT li7 'Repeats.

NEXT 'Repeats.

li9=0

REPEAT 'Executes the tail decision iteration.

GOSUB *samp2

li9=li9+1

UNTIL li9 < 5 'Calls a GOSUB *samp2 statement until li9 < 5.

LOOP 'Repeats.

1 2 ... 260 261 262 263 264 265 266 267 268 269 270 ... 691 692

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