{"id":906,"date":"2021-08-26T02:48:04","date_gmt":"2021-08-26T02:48:04","guid":{"rendered":"https:\/\/topviecit.vn\/blog\/?p=906"},"modified":"2021-08-26T02:50:27","modified_gmt":"2021-08-26T02:50:27","slug":"oop-la-gi","status":"publish","type":"post","link":"https:\/\/topviecit.vn\/blog\/oop-la-gi\/","title":{"rendered":"OOP l\u00e0 g\u00ec? 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a OOP"},"content":{"rendered":"\n<p>OOP l\u00e0 kh\u00e1i ni\u1ec7m quen thu\u1ed9c v\u1edbi nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean hi\u1ec7n nay. \u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh c\u01a1 b\u1ea3n, quen thu\u1ed9c v\u00e0 \u0111\u01b0\u1ee3c xem nh\u01b0 l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh ti\u00eau chu\u1ea9n hi\u1ec7n nay. V\u1eady c\u1ee5 th\u1ec3 <a href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">OOP l\u00e0 g\u00ec?<\/a> 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a OOP c\u1ee5 th\u1ec3 nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y t\u1eeb <a href=\"https:\/\/topviecit.vn\/\" target=\"_blank\" rel=\"noreferrer noopener\">topviecit.vn<\/a> s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u h\u01a1n v\u1ec1 k\u1ef9 thu\u1eadt code n\u00e0y.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#OOP_la_gi\" title=\"OOP l\u00e0 g\u00ec?\">OOP l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Doi_tuong_va_Lop_trong_OOP_la_gi\" title=\"\u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 L\u1edbp trong OOP l\u00e0 g\u00ec?\">\u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 L\u1edbp trong OOP l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Doi_tuong_Object_trong_OOP\" title=\"\u0110\u1ed1i t\u01b0\u1ee3ng (Object) trong OOP\">\u0110\u1ed1i t\u01b0\u1ee3ng (Object) trong OOP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Lop_Class_trong_OOP\" title=\"L\u1edbp (Class) trong OOP\">L\u1edbp (Class) trong OOP<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Cac_tinh_chat_cua_OOP\" title=\"C\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a OOP\">C\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a OOP<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Tinh_dong_goi\" title=\"T\u00ednh \u0111\u00f3ng g\u00f3i&nbsp;\">T\u00ednh \u0111\u00f3ng g\u00f3i&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Tinh_ke_thua\" title=\"T\u00ednh k\u1ebf th\u1eeba\">T\u00ednh k\u1ebf th\u1eeba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Tinh_truu_tuong\" title=\"T\u00ednh tr\u1eebu t\u01b0\u1ee3ng\">T\u00ednh tr\u1eebu t\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/topviecit.vn\/blog\/oop-la-gi\/#Tinh_da_hinh\" title=\"T\u00ednh \u0111a h\u00ecnh\">T\u00ednh \u0111a h\u00ecnh<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"OOP_la_gi\"><\/span><strong>OOP l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>OOP l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb Object Oriented Programming &#8211; L\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110\u00e2y l\u00e0 k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh d\u1ef1a tr\u00ean 2 kh\u00e1i ni\u1ec7m l\u1edbp v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. C\u1ee5 th\u1ec3, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c x\u00e1c \u0111\u1ecbnh d\u1ea1ng d\u1eef li\u1ec7u, c\u00e1c h\u00e0m c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng cho m\u1ed9t c\u1ea5u tr\u00fac d\u1eef li\u1ec7u. Nh\u01b0 v\u1eady, c\u1ea5u tr\u00fac d\u1eef li\u1ec7u s\u1ebd kh\u00f4ng c\u00f2n tr\u1eebu t\u01b0\u1ee3ng m\u00e0 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee5 th\u1ec3, c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng.<\/p>\n\n\n\n<p>M\u1ee5c ti\u00eau c\u1ee7a OOP s\u1ebd l\u00e0 t\u1ed1i \u01b0u vi\u1ec7c qu\u1ea3n l\u00fd m\u00e3 ngu\u1ed3n, t\u0103ng t\u1ec9 l\u1ec7 t\u00e1i s\u1eed d\u1ee5ng v\u00e0 t\u1ed1i \u01b0u c\u00e1c b\u01b0\u1edbc l\u1eadp tr\u00ecnh th\u00f4ng qua vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed1i li\u00ean k\u1ebft gi\u1eefa c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. K\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh OOP t\u1eadp trung v\u00e0o c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng thay v\u00ec logic l\u1eadp tr\u00ecnh. Ch\u00ednh v\u00ec v\u1eady n\u00f3 s\u1ebd ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng ch\u01b0\u01a1ng tr\u00ecnh, h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p c\u1ea7n \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt v\u00e0 t\u1ed1i \u01b0u th\u01b0\u1eddng xuy\u00ean.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/TKIz7QINBW86qDpRxZj03KU7DiMWcMW08H25.jpeg\" alt=\"M\u1ee5c ti\u00eau c\u1ee7a OOP s\u1ebd l\u00e0 t\u1ed1i \u01b0u vi\u1ec7c qu\u1ea3n l\u00fd m\u00e3 ngu\u1ed3n, t\u0103ng t\u1ec9 l\u1ec7 t\u00e1i s\u1eed d\u1ee5ng v\u00e0 t\u1ed1i \u01b0u c\u00e1c b\u01b0\u1edbc l\u1eadp tr\u00ecnh\" class=\"wp-image-908\" height=\"500\" srcset=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/TKIz7QINBW86qDpRxZj03KU7DiMWcMW08H25.jpeg 800w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/TKIz7QINBW86qDpRxZj03KU7DiMWcMW08H25-600x400.jpeg 600w, https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/TKIz7QINBW86qDpRxZj03KU7DiMWcMW08H25-768x512.jpeg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><em>M\u1ee5c ti\u00eau c\u1ee7a OOP s\u1ebd l\u00e0 t\u1ed1i \u01b0u vi\u1ec7c qu\u1ea3n l\u00fd m\u00e3 ngu\u1ed3n, t\u0103ng t\u1ec9 l\u1ec7 t\u00e1i s\u1eed d\u1ee5ng v\u00e0 t\u1ed1i \u01b0u c\u00e1c b\u01b0\u1edbc l\u1eadp tr\u00ecnh<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p><strong><em>>>> Xem th\u00eam:<a href=\"https:\/\/topviecit.vn\/blog\/it-support-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\"> IT Support L\u00e0 G\u00ec? C\u00f4ng Vi\u1ec7c IT Support L\u00e0 L\u00e0m G\u00ec?<\/a><\/em><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Doi_tuong_va_Lop_trong_OOP_la_gi\"><\/span><strong>\u0110\u1ed1i t\u01b0\u1ee3ng v\u00e0 L\u1edbp trong OOP l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u0110\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 l\u1eadp tr\u00ecnh OOP l\u00e0 g\u00ec, ch\u00fang ta s\u1ebd ti\u1ebfp t\u1ee5c t\u00ecm hi\u1ec3u v\u1ec1 hai y\u1ebfu t\u1ed1 n\u1ec1n t\u1ea3ng c\u1ee7a k\u1ef9 thu\u1eadt n\u00e0y l\u00e0 \u0110\u1ed1i t\u01b0\u1ee3ng (Object) v\u00e0 L\u1edbp (Class).&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Doi_tuong_Object_trong_OOP\"><\/span><strong>\u0110\u1ed1i t\u01b0\u1ee3ng (Object) trong OOP<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Trong k\u1ef9 thu\u1eadt OOP, \u0111\u1ed1i t\u01b0\u1ee3ng bao g\u1ed3m 2 th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Thu\u1ed9c t\u00ednh: bao g\u1ed3m th\u00f4ng tin, \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng<\/li><li>Ph\u01b0\u01a1ng th\u1ee9c: bao g\u1ed3m nh\u1eefng thao t\u00e1c, h\u00e0nh \u0111\u1ed9ng m\u00e0 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Lop_Class_trong_OOP\"><\/span><strong>L\u1edbp (Class) trong OOP<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>L\u1edbp l\u00e0 s\u1ef1 tr\u1eebu t\u01b0\u1ee3ng h\u00f3a c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. L\u1edbp c\u0169ng s\u1ebd bao g\u1ed3m 2 y\u1ebfu t\u1ed1 ch\u00ednh c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c. V\u00e0 nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 hai \u0111\u1eb7c t\u00ednh n\u00e0y t\u01b0\u01a1ng t\u1ef1 nhau s\u1ebd t\u1eadp h\u1ee3p th\u00e0nh m\u1ed9t l\u1edbp.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cac_tinh_chat_cua_OOP\"><\/span><strong>C\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a OOP<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Kh\u00e1i ni\u1ec7m v\u1ec1 OOP l\u00e0 g\u00ec c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n c\u00f2n c\u1ea3m th\u1ea5y kh\u00e1 m\u01a1 h\u1ed3. \u0110\u1ec3 t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 k\u1ef9 thu\u1eadt n\u00e0y, h\u00e3y c\u00f9ng ch\u00fang t\u00f4i ti\u1ebfp t\u1ee5c t\u00ecm hi\u1ec3u v\u1ec1 4 t\u00ednh ch\u1ea5t c\u0103n b\u1ea3n, tr\u1ee5 c\u1ed9t c\u1ee7a OOP l\u00e0: t\u00ednh \u0111\u00f3ng g\u00f3i, t\u00ednh tr\u1eebu t\u01b0\u1ee3ng, t\u00ednh k\u1ebf th\u1eeba v\u00e0 t\u00ednh \u0111a h\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_dong_goi\"><\/span><strong>T\u00ednh \u0111\u00f3ng g\u00f3i&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng t\u1ef1 do s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau. V\u00e0 \u0111\u1ec3 tr\u00e1nh s\u1ef1 t\u01b0\u01a1ng t\u00e1c l\u00e0m thay \u0111\u1ed5i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd ph\u1ea3i th\u1ef1c hi\u1ec7n k\u1ef9 thu\u1eadt OOP \u0111\u00f3ng g\u00f3i c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0o t\u1eebng Class ri\u00eang bi\u1ec7t. Nh\u01b0 v\u1eady c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd \u0111\u01b0\u1ee3c che gi\u1ea5u th\u00f4ng tin v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t ri\u00eang bi\u1ec7t b\u00ean trong \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3.&nbsp;<\/p>\n\n\n\n<p>C\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00e1c b\u00ean ngo\u00e0i L\u1edbp ch\u1ec9 c\u00f3 th\u1ec3 t\u00e1c \u0111\u1ed9ng v\u00e0o th\u00f4ng qua ph\u01b0\u01a1ng th\u1ee9c c\u00f4ng khai m\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng b\u00ean trong L\u1edbp cung c\u1ea5p. T\u00ednh \u0111\u00f3ng g\u00f3i trong OOP gi\u00fap gia t\u0103ng t\u00ednh b\u1ea3o m\u1eadt th\u00f4ng tin c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 h\u1ea1n ch\u1ebf s\u1ef1 c\u1ed1 h\u01b0 h\u1ecfng d\u1eef li\u1ec7u.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/coder-2-e1615979521816-870x490-1.jpeg\" alt=\"T\u00ednh OOP gi\u00fap c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng che gi\u1ea5u th\u00f4ng tin v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t ri\u00eang bi\u1ec7t b\u00ean trong \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3\" class=\"wp-image-909\" width=\"800\" height=\"500\"\/><figcaption><em>T\u00ednh OOP gi\u00fap c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng che gi\u1ea5u th\u00f4ng tin v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t ri\u00eang bi\u1ec7t b\u00ean trong \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u00f3<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_ke_thua\"><\/span><strong>T\u00ednh k\u1ebf th\u1eeba<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>T\u00ednh k\u1ebf th\u1eeba trong OOP l\u00e0 g\u00ec? T\u00ednh k\u1ebf th\u1eeba cho ph\u00e9p c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean x\u00e2y d\u1ef1ng m\u1ed9t l\u1edbp Con m\u1edbi d\u1ef1a tr\u00ean nh\u1eefng thu\u1ed9c t\u00ednh, ph\u01b0\u01a1ng th\u1ee9c k\u1ebf th\u1eeba t\u1eeb l\u1edbp Cha c\u0169 \u0111\u00e3 t\u1ed3n t\u1ea1i t\u1eeb tr\u01b0\u1edbc.<\/p>\n\n\n\n<p>Nh\u01b0 v\u1eady L\u1edbp con s\u1ebd kh\u00f4ng ph\u1ea3i \u0111\u1ecbnh ngh\u0129a l\u1ea1i, \u0111\u1ed3ng th\u1eddi c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 b\u1ed5 sung th\u00eam c\u00e1c th\u00e0nh ph\u1ea7n m\u1edbi.<\/p>\n\n\n\n<p>T\u00ednh k\u1ebf th\u1eeba c\u1ee7a k\u1ef9 thu\u1eadt OOP gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean t\u1ed1i \u01b0u v\u00e0 t\u00e1i s\u1eed d\u1ee5ng c\u00e1c m\u00e3 ngu\u1ed3n. Hi\u1ec7n nay m\u1ed9t s\u1ed1 c\u00e1ch k\u1ebf th\u1eeba ph\u1ed5 bi\u1ebfn l\u00e0: \u0111\u01a1n k\u1ebf th\u1eeba, \u0111a k\u1ebf th\u1eeba, k\u1ebf th\u1eeba \u0111a c\u1ea5p, k\u1ebf th\u1eeba th\u1ee9 b\u1eadc. L\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn lo\u1ea1i k\u1ebf th\u1eeba ph\u00f9 h\u1ee3p \u0111\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian code ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_truu_tuong\"><\/span><strong>T\u00ednh tr\u1eebu t\u01b0\u1ee3ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Tr\u1eebu t\u01b0\u1ee3ng ngh\u0129a l\u00e0 t\u1ed5ng qu\u00e1t, kh\u00e1i qu\u00e1t h\u00f3a m\u1ed9t v\u1ea5n \u0111\u1ec1 n\u00e0o \u0111\u00f3 l\u00ean v\u00e0 kh\u00f4ng t\u1eadp trung v\u00e0o nh\u1eefng chi ti\u1ebft nh\u1ecf nh\u1eb7t b\u00ean trong. V\u1edbi \u0111\u1eb7c t\u00ednh n\u00e0y, ng\u01b0\u1eddi ta v\u1eabn hi\u1ec3u v\u1ec1 v\u1ec1 m\u1ed9t v\u1ea5n \u0111\u1ec1 nh\u01b0ng kh\u00f4ng r\u00f5 b\u00ean trong c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3 bao g\u1ed3m nh\u1eefng g\u00ec.<\/p>\n\n\n\n<p>V\u1eady t\u00ednh tr\u1eebu t\u01b0\u1ee3ng trong OOP l\u00e0 g\u00ec? Trong k\u1ef9 thu\u1eadt n\u00e0y, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd ch\u1ecdn l\u00e0 c\u00e1c thu\u1ed9c t\u00ednh, ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1t l\u00f5i, quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng ch\u01b0\u01a1ng tr\u00ecnh. C\u00f2n c\u00e1c thu\u1ed9c t\u00ednh hay ph\u01b0\u01a1ng th\u1ee9c kh\u00f4ng c\u1ea7n thi\u1ebft kh\u00e1c s\u1ebd b\u1ecb b\u1ecf qua.&nbsp;<\/p>\n\n\n\n<p>T\u00ednh tr\u1eebu t\u01b0\u1ee3ng c\u0169ng \u0111\u01b0\u1ee3c xem nh\u01b0 t\u00ednh \u0111\u00f3ng g\u00f3i \u1edf m\u1ee9c \u0111\u1ed9 l\u1edbn h\u01a1n khi n\u00f3 c\u0169ng \u1ea9n gi\u1ea5u c\u00e1c thu\u1ed9c t\u00ednh v\u00e0 ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. V\u00e0 t\u00ednh ch\u1ea5t n\u00e0y gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean c\u00f4 l\u1eadp \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 gi\u1ea3m thi\u1ec3u nh\u1eefng s\u1ef1 thay \u0111\u1ed5i c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng t\u1edbi m\u00e3 code.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/topviecit.vn\/blog\/wp-content\/uploads\/2021\/08\/5-Ways-to-become-a-better-coder.jpeg\" alt=\"D\u1ef1a tr\u00ean t\u00ednh tr\u1eebu t\u01b0\u1ee3ng, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd ch\u1ecdn l\u00e0 c\u00e1c thu\u1ed9c t\u00ednh, ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1t l\u00f5i, quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng ch\u01b0\u01a1ng tr\u00ecnh\" class=\"wp-image-910\" width=\"800\" height=\"500\"\/><figcaption><em>D\u1ef1a tr\u00ean t\u00ednh tr\u1eebu t\u01b0\u1ee3ng, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd ch\u1ecdn l\u00e0 c\u00e1c thu\u1ed9c t\u00ednh, ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1t l\u00f5i, quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng ch\u01b0\u01a1ng tr\u00ecnh<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p><strong><em>>>> Xem th\u00eam: <a href=\"https:\/\/topviecit.vn\/blog\/lap-trinh-vien-full-stack-la-gi\/\" target=\"_blank\" rel=\"noreferrer noopener\">L\u1eadp Tr\u00ecnh Vi\u00ean Full Stack L\u00e0 G\u00ec? M\u00f4 T\u1ea3 C\u00f4ng Vi\u1ec7c<\/a><\/em><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tinh_da_hinh\"><\/span><strong>T\u00ednh \u0111a h\u00ecnh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>T\u00ednh \u0111a h\u00ecnh trong OOP cho ph\u00e9p c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u1ef1c hi\u1ec7n m\u1ed9t h\u00e0nh \u0111\u1ed9ng theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y c\u0169ng c\u00f3 ngh\u0129a l\u00e0 c\u00e1c h\u00e0m hay ph\u01b0\u01a1ng th\u1ee9c c\u00f3 th\u1ec3 c\u00f3 c\u00f9ng m\u1ed9t t\u00ean nh\u01b0ng ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a ch\u00fang s\u1ebd kh\u00e1c nhau.<\/p>\n\n\n\n<p>T\u00ednh \u0111a h\u00ecnh th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh vi\u00ean s\u1eed d\u1ee5ng trong 2 tr\u01b0\u1eddng h\u1ee3p ch\u00ednh. Tr\u01b0\u1eddng h\u1ee3p th\u1ee9 nh\u1ea5t t\u1eadn d\u1ee5ng ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a l\u1edbp cha \u0111\u1ec3 b\u1ed5 sung th\u00eam cho ph\u01b0\u01a1ng th\u1ee9c c\u1ee7a l\u1edbp con. Tr\u01b0\u1eddng h\u1ee3p th\u1ee9 hai, l\u1eadp tr\u00ecnh vi\u00ean s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t t\u00ean duy nh\u1ea5t \u0111\u1ec3 l\u01b0u tr\u1eef c\u00e1c bi\u1ebfn v\u1edbi \u0111a d\u1ea1ng c\u00e1c ki\u1ec3u d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p>Nh\u1eefng h\u00e0nh \u0111\u1ed9ng n\u00e0y gi\u00fap l\u1eadp tr\u00ecnh vi\u00ean ti\u1ebft ki\u1ec7m th\u1eddi gian code ch\u01b0\u01a1ng tr\u00ecnh khi kh\u00f4ng ph\u1ea3i vi\u1ebft l\u1ea1i c\u00e1c m\u00e3 ho\u1eb7c l\u1edbp \u0111\u00e3 c\u00f3 s\u1eb5n. \u0110i\u1ec1u n\u00e0y s\u1ebd khi\u1ebfn qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng v\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m di\u1ec5n ra nhanh ch\u00f3ng nh\u1ea5t.&nbsp;<\/p>\n\n\n\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin m\u00e0 ch\u00fang t\u00f4i mu\u1ed1n chia s\u1ebb t\u1edbi b\u1ea1n v\u1ec1 kh\u00e1i ni\u1ec7m OOP l\u00e0 g\u00ec c\u0169ng nh\u01b0 4 t\u00ednh ch\u1ea5t c\u0103n b\u1ea3n, c\u1ed1t l\u00f5i c\u1ee7a k\u1ef9 thu\u1eadt n\u00e0y. \u0110\u00e2y l\u00e0 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c v\u1eadn d\u1ee5ng nhi\u1ec1u trong qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng v\u00e0 ph\u00e1t tri\u1ec3n nhi\u1ec1u ch\u01b0\u01a1ng tr\u00ecnh hi\u1ec7n nay. V\u00ec v\u1eady b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u v\u00e0 luy\u1ec7n t\u1eadp s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt n\u00e0y ngay t\u1eeb b\u00e2y gi\u1edd \u0111\u1ec3 c\u00f3 c\u01a1 h\u1ed9i ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c v\u1edbi nhi\u1ec1u v\u1ecb tr\u00ed vi\u1ec7c l\u00e0m h\u1ea5p d\u1eabn nh\u1ea5t.\u00a0\u00a0<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-right\">Ngu\u1ed3n \u1ea3nh: S\u01b0u t\u1ea7m <\/p>\n","protected":false},"excerpt":{"rendered":"<p>OOP l\u00e0 kh\u00e1i ni\u1ec7m quen thu\u1ed9c v\u1edbi nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean hi\u1ec7n nay. \u0110\u00e2y l\u00e0 m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh c\u01a1 b\u1ea3n, quen thu\u1ed9c v\u00e0 \u0111\u01b0\u1ee3c xem nh\u01b0 l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh ti\u00eau chu\u1ea9n hi\u1ec7n nay. V\u1eady c\u1ee5 th\u1ec3 OOP l\u00e0 g\u00ec? 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a OOP c\u1ee5 th\u1ec3 nh\u01b0 th\u1ebf n\u00e0o? [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":907,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[86],"tags":[136,137,135,134,138],"class_list":["post-906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chia-se-kinh-nghiem","tag-4-tinh-chat-oop","tag-cac-tinh-chat-cua-oop","tag-lap-trinh-oop-la-gi","tag-oop-la-gi","tag-tinh-dong-goi-trong-oop"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OOP l\u00e0 g\u00ec? 4 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a OOP<\/title>\n<meta name=\"description\" content=\"OOP l\u00e0 kh\u00e1i ni\u1ec7m quen thu\u1ed9c v\u1edbi nh\u1eefng l\u1eadp tr\u00ecnh vi\u00ean hi\u1ec7n nay. 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