86 lines
3.3 KiB
HTML
86 lines
3.3 KiB
HTML
<html>
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<head>
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<object type="application/x-oleobject" classid="clsid:1e2a7bd0-dab9-11d0-b93a-00c04fc99f9e">
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<param name="Keyword" value="program">
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<param name="Keyword" value="uses">
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</object>
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
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<title></title>
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<link rel="StyleSheet" href="../../default.css">
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<style type="text/css">
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.auto-style1 {
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font-family: monospace;
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font-size: 10pt;
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color: #000080;
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}
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</style>
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</head>
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<body>
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<H1>Ñòðóêòóðà ïðîãðàììû: îáçîð</H1>
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<p class="pabcmain">Ïðîãðàììà ñîäåðæèò <a href="identifiers.html">êëþ÷åâûå ñëîâà</a>,
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<a href="identifiers.html">èäåíòèôèêàòîðû</a>, <a href="comments.html">êîììåíòàðèè</a>.
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Êëþ÷åâûå ñëîâà èñïîëüçóþòñÿ äëÿ âûäåëåíèÿ ñèíòàêñè÷åñêèõ êîíñòðóêöèé è
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ïîäñâå÷èâàþòñÿ æèðíûì øðèôòîì â ðåäàêòîðå. Èäåíòèôèêàòîðû ÿâëÿþòñÿ èìåíàìè
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îáúåêòîâ ïðîãðàììû è íå ìîãóò ñîâïàäàòü ñ êëþ÷åâûìè ñëîâàìè. </p>
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<p class="pabcmain"> Ïðîãðàììà íà ÿçûêå <b>PascalABC.NET</b> èìååò ñëåäóþùèé âèä:</p>
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<blockquote>
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<p><code><b>program</b>
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<code class="codeit">èìÿ ïðîãðàììû</code>;<br><code class="codeit">ðàçäåë </code></code>
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<b><code>uses</code></b><code><br>
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<code class="codeit">ðàçäåë îïèñàíèé</code><br><b>begin</b><br>
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<code class="codeit">îïåðàòîðû</code><br><b>end</b>.</code> </p>
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</blockquote>
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<p>Ïåðâàÿ ñòðîêà íàçûâàåòñÿ <i><b><font color="#FF0000">çàãîëîâêîì ïðîãðàììû</font></b></i> è íå ÿâëÿåòñÿ
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îáÿçàòåëüíîé.</p>
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<p><a href="../Modules/uses.html">Ðàçäåë
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<code>
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<b>uses</b></code></a>
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ñîñòîèò èç íåñêîëüêèõ ïîäðÿä èäóùèõ ñåêöèé <span class="auto-style1"> <strong>
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uses</strong></span>, êàæäàÿ èç êîòîðûõ
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íà÷èíàåòñÿ ñ êëþ÷åâîãî ñëîâà
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<b><code>uses</code></b>,
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çà êîòîðûì ñëåäóåò ñïèñîê èìåí ìîäóëåé è ïðîñòðàíñòâ èìåí .NET, ïåðå÷èñëÿåìûõ ÷åðåç çàïÿòóþ.</p>
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<p>Ðàçäåë îïèñàíèé ìîæåò âêëþ÷àòü ñëåäóþùèå ïîäðàçäåëû:</p>
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<ul>
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<li><a href="vardef.html">ðàçäåë îïèñàíèÿ ïåðåìåííûõ</a> </li>
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<li><a href="constdef.html">ðàçäåë îïèñàíèÿ êîíñòàíò</a></li>
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<li><a href="typesdef.html">ðàçäåë îïèñàíèÿ òèïîâ</a></li>
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<li><a href="labeldef.html">ðàçäåë îïèñàíèÿ ìåòîê</a></li>
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<li><a href="../ProcFunc/procdef.html">ðàçäåë
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îïèñàíèÿ ïðîöåäóð è ôóíêöèé</a></li>
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</ul>
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<p>Äàííûå ïîäðàçäåëû ñëåäóþò äðóã
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çà äðóãîì â ïðîèçâîëüíîì ïîðÿäêå.</p>
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<p>Äàëåå ñëåäóåò <a href="../Operators/beginend.html">áëîê</a> <b><code>begin</code></b>/<b><code>end</code></b>,
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âíóòðè êîòîðîãî íàõîäÿòñÿ <a href="../Operators/index_statements.html">îïåðàòîðû</a>, îòäåëÿåìûå îäèí îò äðóãîãî ñèìâîëîì "òî÷êà
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ñ çàïÿòîé". Ñðåäè îïåðàòîðîâ ìîæåò ïðèñóòñòâîâàòü
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<a href="../Operators/var_statement.html">îïåðàòîð îïèñàíèÿ
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ïåðåìåííîé</a>, êîòîðûé ïîçâîëÿåò îïèñûâàòü ïåðåìåííûå âíóòðè áëîêà.</p>
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<p>Ðàçäåë
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<b><code>uses</code></b><code><code class="codeit"><span style="font-style: normal">
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</span></code></code>è ðàçäåë îïèñàíèé
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ìîãóò îòñóòñòâîâàòü.</p>
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<p>Íàïðèìåð:</p>
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<blockquote>
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<code><b>program</b> MyProgram;<br>
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<b>var</b> <br>
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a,b: integer;<br>
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x: real;<br>
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<b>begin<br>
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</b> readln(a,b);<br>
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x := a/b;<br>
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writeln(x);<br>
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<b>end</b>.</code></blockquote>
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<p>èëè</p>
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<blockquote>
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<code><b>uses</b> GraphABC;<br>
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<b>begin<br>
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</b> <strong>var</strong> x := 100;<br> <strong>var</strong> y :=
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100;<br> <strong>var</strong> r := 50;<br> Circle(x,y,r);<br>
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<b>end</b>.</code></blockquote>
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</body>
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</html>
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