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(Created page with "'''Line numbers''' or '''line labels''' are used to denote GOTO, RUN or GOSUB procedure lines or all code lines as in GW Basic. == Number Syntax == :: '''10''' GOTO {line number| line label} == Label Syntax == ::'''PictureData:''' :: DATA 0, 0, 12, 12, 14, 12, 12, 0, 0 * Line numbers are used to denote a specific line of code. No colon required. * Line labels are used to denote a specific line of code with a colon when separating it from a co...") |
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== Number Syntax == | == Number Syntax == | ||
:: '''10''' [[GOTO]] {line number| line label} | :: '''10''' [[GOTO]] {line number| line label} | ||
== Label Syntax == | == Label Syntax == | ||
| Line 12: | Line 13: | ||
* Line numbers are used to denote a specific line of code. No colon required. | * Line numbers are used to denote a specific line of code. No colon required. | ||
* Line labels are used to denote a specific line of code with a [[colon]] when separating it from a code line. | * Line labels are used to denote a specific line of code with a [[colon]] when separating it from a code line. | ||
* [[GOSUB]] or [[DATA]] block line labels can be numerical or text line names. [[RESTORE]] can use the label to reuse data. | * [[GOSUB]] or [[DATA]] block line labels can be numerical or text line names. [[RESTORE]] can use the label to reuse data. | ||
* [[GOSUB]] blocks require a [[RETURN]] to return to the original call or to a line label or number to return to. | * [[GOSUB]] blocks require a [[RETURN]] to return to the original call or to a line label or number to return to. | ||
* [[ON ERROR]] [[GOTO]] line label or number calls use [[RESUME]] [[NEXT]] or a line label or number to resume to. | * [[ON ERROR]] [[GOTO]] line label or number calls use [[RESUME]] [[NEXT]] or a line label or number to resume to. | ||
| Line 20: | Line 21: | ||
{{PageSeeAlso}} | |||
* [[GOTO]], [[RUN]] | * [[GOTO]], [[RUN]] | ||
* [[GOSUB]], [[RETURN]] | * [[GOSUB]], [[RETURN]] | ||
* [[DATA]], [[RESTORE]] | * [[DATA]], [[RESTORE]] | ||
* [[ON ERROR]], [[RESUME]], [[NEXT]] | * [[ON ERROR]], [[RESUME]], [[NEXT]] | ||
* [[ | * [[Line number|Line number removal procedures]] | ||
{{ | {{PageReferences}} | ||
Latest revision as of 13:22, 19 November 2024
Line numbers or line labels are used to denote GOTO, RUN or GOSUB procedure lines or all code lines as in GW Basic.
Number Syntax
- 10 GOTO {line number| line label}
Label Syntax
- PictureData:
- DATA 0, 0, 12, 12, 14, 12, 12, 0, 0
- Line numbers are used to denote a specific line of code. No colon required.
- Line labels are used to denote a specific line of code with a colon when separating it from a code line.
- GOSUB or DATA block line labels can be numerical or text line names. RESTORE can use the label to reuse data.
- GOSUB blocks require a RETURN to return to the original call or to a line label or number to return to.
- ON ERROR GOTO line label or number calls use RESUME NEXT or a line label or number to resume to.
- GOTO or RUN can refer to a specific numerical line number or text line label.
- Line numbers are no longer required in QB or QB64 except for GOSUB, RUN or GOTO situations.
- Line numbers and labels are not allowed after SUB/FUNCTION blocks. They are allowed inside SUB/FUNCTIONS though.
See also