{"id":44,"date":"2014-12-29T14:41:18","date_gmt":"2014-12-29T13:41:18","guid":{"rendered":"http:\/\/www.valcon.it\/pascal\/?p=44"},"modified":"2015-07-02T22:14:10","modified_gmt":"2015-07-02T20:14:10","slug":"scambiare-due-variabili","status":"publish","type":"post","link":"https:\/\/www.valcon.it\/pascal\/scambiare-due-variabili\/","title":{"rendered":"Scambiare due variabili"},"content":{"rendered":"<p>Due variabili contengono dei valori e abbiamo la necessit\u00e0 di scambiarli tra loro.<\/p>\n<p style=\"padding-left: 30px;\"><img loading=\"lazy\" decoding=\"async\" width=\"189\" height=\"116\" class=\"size-full wp-image-971 alignnone\" src=\"http:\/\/www.valcon.it\/pp\/wp-content\/uploads\/scambia1.png\" alt=\"scambia1\" srcset=\"https:\/\/www.valcon.it\/pascal\/wp-content\/uploads\/scambia1.png 189w, https:\/\/www.valcon.it\/pascal\/wp-content\/uploads\/scambia1-150x92.png 150w\" sizes=\"(max-width: 189px) 100vw, 189px\" \/><\/p>\n<h3 id=\"hn_59ca4f8bbb\">Prima versione<\/h3>\n<p>Difettosa?<\/p>\n<p style=\"padding-left: 30px;\"><img decoding=\"async\" class=\"alignnone wp-image-5374 size-full\" src=\"http:\/\/www.valcon.it\/pp\/wp-content\/uploads\/scambia11.png\" alt=\"scambia11\" \/><\/p>\n<p id=\"hn_59ca4f8bbb\">Prima versione (difettosa?)<\/p>\n<pre class=\"\">Program Scambia_Difettosa;\r\nUses\r\n\u00a0 \u00a0 \u00a0Crt;\r\nVar\r\n\u00a0 \u00a0 \u00a0var1, \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* dichiarazione delle variabili \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0var2: Integer;\r\nBegin\r\n\u00a0 \u00a0 \u00a0var1:=5; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (* inizializzazione delle variabili *)\r\n\u00a0 \u00a0 \u00a0var2:=100;\r\n\u00a0 \u00a0 \u00a0Clrscr; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* Pulisce lo schermo \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 *)\r\n\u00a0 \u00a0 \u00a0Writeln('1: ', var1); \u00a0 \u00a0 \u00a0(* visualizzazione delle variabili \u00a0*)\r\n\u00a0 \u00a0 \u00a0Writeln('2: ', var2);\r\n\u00a0 \u00a0 \u00a0var1:=var2; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* ELABORAZIONE DEI DATI \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0var2:=var1;\r\n\u00a0 \u00a0 \u00a0Writeln('1: ', var1); \u00a0 \u00a0 \u00a0(* visualizzazione del risultato \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0Writeln('2: ', var2);\r\n\u00a0 \u00a0 \u00a0Readln;\r\nEnd.<\/pre>\n<h3>Seconda versione<\/h3>\n<p>Corretta!<\/p>\n<p style=\"padding-left: 30px;\"><img decoding=\"async\" class=\"alignnone wp-image-5394 size-full\" src=\"http:\/\/www.valcon.it\/pp\/wp-content\/uploads\/scambia2.png\" alt=\"scambia2\" \/><\/p>\n<p>Utilizza una variabile <em>temporanea<\/em>, di appoggio.<\/p>\n<pre class=\"\">Program Scambia_Corretta;\r\nUses \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* Utilizzo delle librerie \u00a0 \u00a0 \u00a0 \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0Crt; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (* Libreria per schermo e tastiera \u00a0*)\r\nVar\r\n\u00a0 \u00a0 \u00a0var1, \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* dichiarazione delle variabili \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0var2: Integer;\r\n\u00a0 \u00a0 \u00a0temp: Integer; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (* variabile di lavoro \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0*)\r\nBegin\r\n\u00a0 \u00a0 \u00a0var1:=5; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (* inizializzazione delle variabili *)\r\n\u00a0 \u00a0 \u00a0var2:=100;\r\n\u00a0 \u00a0 \u00a0Clrscr; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* Pulisce lo schermo \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 *)\r\n\u00a0 \u00a0 \u00a0Writeln('1: ', var1); \u00a0 \u00a0 \u00a0(* visualizzazione delle variabili \u00a0*)\r\n\u00a0 \u00a0 \u00a0Writeln('2: ', var2);\r\n\u00a0 \u00a0 \u00a0temp:=var1; \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* ELABORAZIONE DEI DATI \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0var1:=var2;\r\n\u00a0 \u00a0 \u00a0var2:=temp;\r\n\u00a0 \u00a0 \u00a0Writeln('1: ', var1); \u00a0 \u00a0 \u00a0(* visualizzazione del risultato \u00a0 \u00a0*)\r\n\u00a0 \u00a0 \u00a0Writeln('2: ', var2);\r\n\u00a0 \u00a0 \u00a0Readln;\r\nEnd.<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Due variabili contengono dei valori e abbiamo la necessit\u00e0 di scambiarli tra loro. Prima versione Difettosa? Prima versione (difettosa?) Program Scambia_Difettosa; Uses \u00a0 \u00a0 \u00a0Crt; Var \u00a0 \u00a0 \u00a0var1, \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0(* dichiarazione delle variabili \u00a0 \u00a0*) \u00a0 \u00a0 \u00a0var2: Integer; Begin \u00a0 \u00a0 \u00a0var1:=5; \u00a0 \u00a0 &#8230; <a title=\"Scambiare due variabili\" class=\"read-more\" href=\"https:\/\/www.valcon.it\/pascal\/scambiare-due-variabili\/\" aria-label=\"Leggi di pi\u00f9 su Scambiare due variabili\">Leggi tutto<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"_links":{"self":[{"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/posts\/44"}],"collection":[{"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/comments?post=44"}],"version-history":[{"count":7,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/posts\/44\/revisions"}],"predecessor-version":[{"id":5556,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/posts\/44\/revisions\/5556"}],"wp:attachment":[{"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/media?parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/categories?post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.valcon.it\/pascal\/wp-json\/wp\/v2\/tags?post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}