program structure

program structure

1. Common structure

   • high code
     • declaration
       • compulsory
     • body
       • non compulsory
   • explain
     • natural language
       • use < >

2. elements

   • declaration
     • name
       • non compulsory
       • program <name>;
       • rule the regulation
     • library
       • provide available prog
       • uses crt;
     • constant
       • declarate for
         • many times appear value
       • const <name> = <value>;
     • variable
       • establish relations
         • memomry address
       • use once
       • var <list of variable> : <data type>;
     • child program
   • body
     • start with
       • begin
     • end with
       • end.
     • {<CODES>}

3. simple program

   • program vi_du;
   • begin
   • wriiteln ('Hello world!');
   • end.