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Chapter 4
Basic Program Elements
CONTENTS
CONTENTSCONTENTS
CONTENTS
4.1 Structure of a Program Line .................................................................................. 53
4.1.1 Format of a Program Line ...........................................................................53
[ 1 ] Labels.................................................................................................53
[ 2 ] Statements..........................................................................................54
[ 3 ] Comments .......................................................................................... 54
4.1.2 Program Line Length................................................................................... 55
4.2 Usable Characters ................................................................................................56
4.2.1 Usable Characters.......................................................................................56
4.2.2 Special Symbols and Control Codes ........................................................... 57
4.3 Labels......................................................................................................................59
4.4 Identifiers.................................................................................................................60
4.5 Reserved Words...................................................................................................... 61
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