Denso Power Net Terminal BHT-7500 Specifikace stáhnout pdf (Strana 277)

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101

Chapter 14. Statement Reference

268

Syntax:

ON ERROR GOTO label

Description:

ON ERROR GOTO enables error trapping so as to pass control to the first line of an

error-handling routine specified by

label if an error occurs during program execu-

tion.

• To return control from an error-handling routine to a specified program location,

you use a

RESUME statement in the error-handling routine.

• Specification of zero (

0) to label disables error trapping.

ON ERROR GOTO 0 is executed outside the error-handling routine, the occur-

rence of any subsequent error displays a regular run-time error code and termi-

nates the program.

ON ERROR GOTO 0 is executed inside the error-handling routine, the Interpreter

immediately displays the regular run-time error code and terminates the program.

• You cannot trap errors which may occur during execution of the error-handling

routine. The occurrence of such an error displays a run-time error code and ter-

minates the program.

• You can use

ON ERROR GO TO instead of ON ERROR GOTO.

Syntax errors:

Reference:

Error control statement

ON ERROR GOTO

Enables error trapping.

Error code and message Meaning

error 71: Syntax error • label has not been defined.

•

label is missing.

Statements:

RESUME

Functions:

ERL and ERR

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