{"id":1,"date":"2025-11-26T07:18:21","date_gmt":"2025-11-26T07:18:21","guid":{"rendered":"https:\/\/ams.dynaminds.vn\/vi\/tin-tuc\/?p=1"},"modified":"2025-12-12T00:18:45","modified_gmt":"2025-12-11T17:18:45","slug":"hello-world","status":"publish","type":"post","link":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/hello-world\/","title":{"rendered":"Hello world!"},"content":{"rendered":"<p>\n        C\u1ee5m t\u1eeb <strong>&#8220;Hello, World!&#8221;<\/strong> \u0111\u01b0\u1ee3c cho l\u00e0 thu\u1eadt ng\u1eef c\u01a1 b\u1ea3n v\u00e0 n\u1ed5i ti\u1ebfng nh\u1ea5t trong l\u1eadp tr\u00ecnh m\u00e1y t\u00ednh. N\u00f3 \u0111\u1ea1i di\u1ec7n cho v\u1ea1ch xu\u1ea5t ph\u00e1t c\u1ee7a h\u00e0ng tri\u1ec7u l\u1eadp tr\u00ecnh vi\u00ean v\u00e0 \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u00e0i t\u1eadp gi\u1edbi thi\u1ec7u m\u1eabu m\u1ef1c \u0111\u1ec3 h\u1ecdc h\u1ea7u h\u1ebft m\u1ecdi ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh. Kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t chu\u1ed7i v\u0103n b\u1ea3n \u0111\u01a1n gi\u1ea3n, &#8220;Hello, World!&#8221; c\u00f2n l\u00e0 m\u1ed9t nghi th\u1ee9c nh\u1eadp m\u00f4n, m\u1ed9t b\u00e0i ki\u1ec3m tra t\u00ednh \u0111\u00fang \u0111\u1eafn, v\u00e0 m\u1ed9t x\u00e1c nh\u1eadn h\u1eefu h\u00ecnh r\u1eb1ng m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp ch\u00ednh x\u00e1c v\u00e0 ho\u1ea1t \u0111\u1ed9ng. S\u1ef1 \u0111\u01a1n gi\u1ea3n c\u1ee7a n\u00f3 che gi\u1ea5u t\u1ea7m quan tr\u1ecdng s\u00e2u s\u1eafc v\u1ec1 v\u0103n h\u00f3a v\u00e0 k\u1ef9 thu\u1eadt trong th\u1ebf gi\u1edbi m\u00e1y t\u00ednh.\n    <\/p>\n<h2>C\u00e2u chuy\u1ec7n kh\u1edfi ngu\u1ed3n: Ng\u00f4n ng\u1eef C v\u00e0 Brian Kernighan<\/h2>\n<p>\n        Vi\u1ec7c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0 chu\u1ea9n h\u00f3a c\u1ee5m t\u1eeb &#8220;Hello, World!&#8221; c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy nguy\u00ean t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1970, c\u1ee5 th\u1ec3 l\u00e0 c\u00f4ng tr\u00ecnh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i Bell Labs, n\u01a1i khai sinh ra <strong>ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh C<\/strong>.\n    <\/p>\n<p>\n        T\u00e0i li\u1ec7u d\u1ee9t kho\u00e1t l\u00e0m ph\u1ed5 bi\u1ebfn thu\u1eadt ng\u1eef n\u00e0y l\u00e0 cu\u1ed1n s\u00e1ch n\u0103m 1978, <em>The C Programming Language<\/em> (Ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh C), \u0111\u1ed3ng t\u00e1c gi\u1ea3 b\u1edfi <strong>Brian Kernighan<\/strong> v\u00e0 <strong>Dennis Ritchie<\/strong>. Trong v\u0103n b\u1ea3n n\u1ec1n t\u1ea3ng n\u00e0y, v\u00ed d\u1ee5 gi\u1edbi thi\u1ec7u \u0111\u1ea7u ti\u00ean cho l\u1eadp tr\u00ecnh C l\u00e0 m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 in ra c\u1ee5m t\u1eeb mang t\u00ednh bi\u1ec3u t\u01b0\u1ee3ng n\u00e0y.\n    <\/p>\n<p>\n        Ngu\u1ed3n g\u1ed1c l\u1ecbch s\u1eed c\u00f2n xa h\u01a1n th\u1ebf. M\u1ed9t b\u1ea3n ghi nh\u1edb n\u1ed9i b\u1ed9 tr\u01b0\u1edbc \u0111\u00f3 c\u1ee7a Bell Labs do Kernighan vi\u1ebft, <em>A Tutorial Introduction to the Language B<\/em> (H\u01b0\u1edbng d\u1eabn nh\u1eadp m\u00f4n ng\u00f4n ng\u1eef B, ti\u1ec1n th\u00e2n c\u1ee7a C), \u0111\u00e3 bao g\u1ed3m m\u1ed9t v\u00ed d\u1ee5 in c\u1ee5m t\u1eeb &#8220;hello, world&#8221;. Tuy nhi\u00ean, ch\u00ednh cu\u1ed1n s\u00e1ch C \u0111\u00e3 c\u1ee7ng c\u1ed1 s\u1ef1 ch\u1ea5p nh\u1eadn to\u00e0n c\u1ea7u c\u1ee7a n\u00f3.\n    <\/p>\n<p>\n        Kernighan sau n\u00e0y gi\u1ea3i th\u00edch r\u1eb1ng c\u1ee5m t\u1eeb n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ea5y c\u1ea3m h\u1ee9ng t\u1eeb m\u1ed9t b\u1ed9 phim ho\u1ea1t h\u00ecnh m\u00e0 \u00f4ng t\u1eebng xem, m\u00f4 t\u1ea3 m\u1ed9t ch\u00fa g\u00e0 con n\u1edf ra v\u00e0 n\u00f3i &#8220;Hello, world.&#8221; B\u1ea5t k\u1ec3 ngu\u1ed3n c\u1ea3m h\u1ee9ng ch\u00ednh x\u00e1c l\u00e0 g\u00ec, s\u1ef1 \u0111\u01a1n gi\u1ea3n v\u00e0 s\u1ef1 c\u00f4ng nh\u1eadn ph\u1ed5 qu\u00e1t ngay l\u1eadp t\u1ee9c c\u1ee7a l\u1eddi ch\u00e0o n\u00e0y \u0111\u00e3 khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o cho ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ea7u ti\u00ean.\n    <\/p>\n<h2>T\u1ea1i sao &#8220;Hello, World!&#8221; l\u1ea1i l\u00e0 Ch\u01b0\u01a1ng tr\u00ecnh \u0110\u1ea7u ti\u00ean?<\/h2>\n<p>\n        Vi\u1ec7c l\u1ef1a ch\u1ecdn &#8220;Hello, World!&#8221; l\u00e0m ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ea7u ti\u00ean trong v\u00f4 s\u1ed1 h\u01b0\u1edbng d\u1eabn c\u00f3 ngu\u1ed3n g\u1ed1c s\u00e2u xa t\u1eeb nh\u1eefng l\u00fd do s\u01b0 ph\u1ea1m v\u00e0 th\u1ef1c ti\u1ec5n.\n    <\/p>\n<h3>1. Ki\u1ec3m tra T\u00ednh \u0110\u00fang \u0111\u1eafn (Sanity Check)<\/h3>\n<p>\n        Tr\u01b0\u1edbc khi m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c thu\u1eadt to\u00e1n ph\u1ee9c t\u1ea1p, h\u1ecd ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 c\u01a1 b\u1ea3n \u0111ang ho\u1ea1t \u0111\u1ed9ng. M\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh &#8220;Hello, World!&#8221; ki\u1ec3m tra to\u00e0n b\u1ed9 chu\u1ed7i c\u00f4ng c\u1ee5:<\/p>\n<ul>\n<li><strong>Editor\/IDE:<\/strong> M\u00e3 c\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft ch\u00ednh x\u00e1c kh\u00f4ng?<\/li>\n<li><strong>Compiler\/Interpreter:<\/strong> M\u00e3 ngu\u1ed3n c\u00f3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd m\u00e0 kh\u00f4ng c\u00f3 l\u1ed7i kh\u00f4ng?<\/li>\n<li><strong>Operating System:<\/strong> Ch\u01b0\u01a1ng tr\u00ecnh c\u00f3 th\u1ec3 t\u01b0\u01a1ng t\u00e1c th\u00e0nh c\u00f4ng v\u1edbi lu\u1ed3ng \u0111\u1ea7u ra c\u1ee7a h\u1ec7 th\u1ed1ng (th\u01b0\u1eddng l\u00e0 terminal ho\u1eb7c console) kh\u00f4ng?<\/li>\n<\/ul>\n<p>        N\u1ebfu l\u1eadp tr\u00ecnh vi\u00ean bi\u00ean d\u1ecbch v\u00e0 ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh th\u00e0nh c\u00f4ng, v\u00e0 v\u0103n b\u1ea3n <strong>&#8220;Hello, World!&#8221;<\/strong> xu\u1ea5t hi\u1ec7n tr\u00ean m\u00e0n h\u00ecnh, \u0111\u00f3 l\u00e0 m\u1ed9t x\u00e1c nh\u1eadn kh\u00f4ng th\u1ec3 ch\u1ed1i c\u00e3i ngay l\u1eadp t\u1ee9c: <strong>&#8220;\u0110\u00fang v\u1eady, h\u1ec7 th\u1ed1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng. B\u1ea1n \u0111\u00e3 c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u l\u1eadp tr\u00ecnh.&#8221;<\/strong>\n    <\/p>\n<h3>2. Minh h\u1ecda T\u1ed1i gi\u1ea3n<\/h3>\n<p>\n        M\u1ee5c ti\u00eau c\u1ed1t l\u00f5i c\u1ee7a b\u00e0i h\u1ecdc \u0111\u1ea7u ti\u00ean l\u00e0 ch\u1ee9ng minh c\u00fa ph\u00e1p t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i c\u1ea7n thi\u1ebft \u0111\u1ec3 th\u1ef1c thi m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh. V\u00ed d\u1ee5 &#8220;Hello, World!&#8221; ch\u1ec9 y\u00eau c\u1ea7u c\u1ea5u tr\u00fac c\u01a1 b\u1ea3n nh\u1ea5t c\u1ee7a m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh trong b\u1ea5t k\u1ef3 ng\u00f4n ng\u1eef n\u00e0o.\n    <\/p>\n<ul>\n<li>Trong C, n\u00f3 y\u00eau c\u1ea7u bao g\u1ed3m m\u1ed9t th\u01b0 vi\u1ec7n chu\u1ea9n (<code>stdio.h<\/code>) v\u00e0 \u0111\u1ecbnh ngh\u0129a h\u00e0m main.<\/li>\n<li>Trong Python, n\u00f3 l\u00e0 m\u1ed9t d\u00f2ng duy nh\u1ea5t, ng\u1eafn g\u1ecdn: <code>print(\"Hello, World!\")<\/code>.<\/li>\n<\/ul>\n<p>        C\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1i gi\u1ea3n n\u00e0y c\u00f4 l\u1eadp ch\u1ee9c n\u0103ng \u0111\u1ea7u ra ch\u00ednh, \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u kh\u00f4ng b\u1ecb cho\u00e1ng ng\u1ee3p b\u1edfi c\u00e1c kh\u00e1i ni\u1ec7m ph\u1ee9c t\u1ea1p nh\u01b0 bi\u1ebfn, v\u00f2ng l\u1eb7p ho\u1eb7c nh\u1eadp li\u1ec7u t\u1eeb ng\u01b0\u1eddi d\u00f9ng ngay l\u1eadp t\u1ee9c.\n    <\/p>\n<h3>3. H\u00e0i l\u00f2ng Ngay l\u1eadp t\u1ee9c<\/h3>\n<p>\n        H\u1ecdc l\u1eadp tr\u00ecnh c\u00f3 th\u1ec3 \u0111\u1ea7y th\u1eed th\u00e1ch, v\u00e0 th\u00e0nh c\u00f4ng s\u1edbm l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 t\u1ea1o \u0111\u1ed9ng l\u1ef1c. Vi\u1ec7c nh\u00ecn th\u1ea5y m\u1ed9t k\u1ebft qu\u1ea3 h\u1eefu h\u00ecnh, r\u00f5 r\u00e0ng\u2014v\u0103n b\u1ea3n &#8220;Hello, World!&#8221;\u2014ch\u1ec9 trong v\u00e0i ph\u00fat sau khi b\u1eaft \u0111\u1ea7u l\u00e0 v\u00f4 c\u00f9ng \u0111\u00e1ng kh\u00edch l\u1ec7. N\u00f3 cung c\u1ea5p m\u1ed9t v\u00f2ng ph\u1ea3n h\u1ed3i t\u00edch c\u1ef1c, nhanh ch\u00f3ng, x\u00e2y d\u1ef1ng s\u1ef1 t\u1ef1 tin v\u00e0 x\u00e1c nh\u1eadn n\u1ed7 l\u1ef1c b\u1ecf ra \u0111\u1ec3 thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng.\n    <\/p>\n<h2>S\u1ef1 Ph\u00e1t tri\u1ec3n qua c\u00e1c Ng\u00f4n ng\u1eef L\u1eadp tr\u00ecnh<\/h2>\n<p>\n        C\u1ea5u tr\u00fac c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh &#8220;Hello, World!&#8221; ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t h\u00ecnh \u1ea3nh thu nh\u1ecf c\u1ee7a c\u00fa ph\u00e1p v\u00e0 tri\u1ebft l\u00fd c\u1ee7a ng\u00f4n ng\u1eef m\u00e0 n\u00f3 \u0111\u01b0\u1ee3c vi\u1ebft. Vi\u1ec7c so s\u00e1nh c\u00e1c v\u00ed d\u1ee5 &#8220;Hello, World!&#8221; gi\u1eefa c\u00e1c ng\u00f4n ng\u1eef kh\u00e1c nhau ngay l\u1eadp t\u1ee9c l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n c\u1ee7a ch\u00fang.\n    <\/p>\n<h3>C (Kinh \u0111i\u1ec3n)<\/h3>\n<pre><code>#include &lt;stdio.h&gt;\r\n\r\nint main() {\r\n    printf(\"Hello, World!\\n\");\r\n    return 0;\r\n}<\/code><\/pre>\n<p>\n        V\u00ed d\u1ee5 n\u00e0y y\u00eau c\u1ea7u m\u1ed9t h\u00e0m (<code>main<\/code>), m\u1ed9t c\u00e2u l\u1ec7nh include (<code>stdio.h<\/code>), v\u00e0 m\u1ed9t h\u00e0m in c\u1ee5 th\u1ec3 (<code>printf<\/code>). N\u00f3 th\u1ec3 hi\u1ec7n b\u1ea3n ch\u1ea5t c\u00f3 c\u1ea5u tr\u00fac, \u0111\u01b0\u1ee3c bi\u00ean d\u1ecbch c\u1ee7a ng\u00f4n ng\u1eef.\n    <\/p>\n<h3>Python (T\u1ed1i gi\u1ea3n)<\/h3>\n<pre><code>print(\"Hello, World!\")<\/code><\/pre>\n<p>\n        C\u00e1ch ti\u1ebfp c\u1eadn c\u1ee7a Python n\u1ed5i ti\u1ebfng v\u1edbi s\u1ef1 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 \u0111\u1ecdc. Ch\u01b0\u01a1ng tr\u00ecnh &#8220;Hello, World!&#8221; l\u00e0 m\u1ed9t d\u00f2ng duy nh\u1ea5t, tr\u1ef1c quan, ph\u1ea3n \u00e1nh s\u1ef1 t\u1eadp trung c\u1ee7a n\u00f3 v\u00e0o ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng v\u00e0 m\u00e3 s\u1ea1ch.\n    <\/p>\n<h3>Java (H\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng)<\/h3>\n<pre><code>class HelloWorld {\r\n    public static void main(String[] args) {\r\n        System.out.println(\"Hello, World!\");\r\n    }\r\n}<\/code><\/pre>\n<p>\n        Java y\u00eau c\u1ea7u c\u1ee5m t\u1eeb ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i trong m\u1ed9t l\u1edbp (<code>HelloWorld<\/code>) v\u00e0 m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c (<code>main<\/code>), ngay l\u1eadp t\u1ee9c gi\u1edbi thi\u1ec7u c\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 <strong>l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng (OOP)<\/strong> cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.\n    <\/p>\n<h3>JavaScript (\u0110\u1ea1i s\u1ee9 Web)<\/h3>\n<pre><code>console.log(\"Hello, World!\");<\/code><\/pre>\n<p>\n        Trong JavaScript, m\u00f4i tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn l\u00e0 console c\u1ee7a tr\u00ecnh duy\u1ec7t, v\u00e0 h\u00e0m li\u00ean quan l\u00e0 <code>console.log()<\/code>. V\u00ed d\u1ee5 n\u00e0y ngay l\u1eadp t\u1ee9c \u0111\u1eb7t ng\u01b0\u1eddi h\u1ecdc v\u00e0o b\u1ed1i c\u1ea3nh ph\u00e1t tri\u1ec3n web.\n    <\/p>\n<p>\n        S\u1ef1 \u0111a d\u1ea1ng n\u00e0y ch\u1ee9ng minh c\u00e1ch nhi\u1ec7m v\u1ee5 c\u01a1 b\u1ea3n l\u00e0 in v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u00e1c c\u1ea5u tr\u00fac ng\u00f4n ng\u1eef ho\u00e0n to\u00e0n kh\u00e1c nhau, th\u1ec3 hi\u1ec7n s\u1ef1 \u0111a d\u1ea1ng trong h\u1ec7 sinh th\u00e1i l\u1eadp tr\u00ecnh.\n    <\/p>\n<h2>T\u00e1c \u0111\u1ed9ng V\u0103n h\u00f3a v\u00e0 Ph\u00e9p \u1ea9n d\u1ee5<\/h2>\n<p>\n        C\u1ee5m t\u1eeb n\u00e0y \u0111\u00e3 v\u01b0\u1ee3t qua vai tr\u00f2 k\u1ef9 thu\u1eadt c\u1ee7a n\u00f3 \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t c\u1ed9t m\u1ed1c v\u0103n h\u00f3a.\n    <\/p>\n<h3>Ph\u00e9p \u1ea9n d\u1ee5 &#8220;B\u01b0\u1edbc \u0111i \u0110\u1ea7u ti\u00ean&#8221;<\/h3>\n<p>\n        Trong ng\u00f4n ng\u1eef th\u00f4ng th\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong gi\u1edbi c\u00f4ng ngh\u1ec7, vi\u1ec7c n\u00f3i r\u1eb1ng m\u1ed9t d\u1ef1 \u00e1n ho\u1eb7c c\u00f4ng ngh\u1ec7 m\u1edbi &#8220;\u0111\u00e3 s\u1eb5n s\u00e0ng cho &#8216;Hello, World!'&#8221; l\u00e0 m\u1ed9t ph\u00e9p \u1ea9n d\u1ee5 cho vi\u1ec7c \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i kh\u1ea3 d\u1ee5ng t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i\u2014\u0111i\u1ec3m m\u00e0 n\u00f3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n nh\u1ea5t v\u00e0 ch\u1ee9ng minh s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a n\u00f3. Khi m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c \u1ee9ng d\u1ee5ng m\u1edbi \u0111ang \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n, m\u1ee5c ti\u00eau khi\u1ebfn &#8220;Hello, World!&#8221; ch\u1ea1y th\u00e0nh c\u00f4ng th\u01b0\u1eddng l\u00e0 chi\u1ebfn th\u1eafng nh\u1ecf \u0111\u1ea7u ti\u00ean.\n    <\/p>\n<h3>Ng\u00f4n ng\u1eef chung (Lingua Franca)<\/h3>\n<p>\n        B\u1edfi v\u00ec m\u1ecdi l\u1eadp tr\u00ecnh vi\u00ean, b\u1ea5t k\u1ec3 chuy\u00ean m\u00f4n c\u1ee7a h\u1ecd l\u00e0 g\u00ec, \u0111\u1ec1u \u0111\u00e3 vi\u1ebft m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh &#8220;Hello, World!&#8221;, c\u1ee5m t\u1eeb n\u00e0y \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t lo\u1ea1i <strong>ng\u00f4n ng\u1eef chung (lingua franca)<\/strong>\u2014m\u1ed9t ng\u00f4n ng\u1eef chung v\u00e0 tr\u1ea3i nghi\u1ec7m \u0111\u01b0\u1ee3c chia s\u1ebb. N\u00f3 k\u1ebft n\u1ed1i c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n qua nhi\u1ec1u th\u1ebf h\u1ec7, ng\u00f4n ng\u1eef v\u00e0 n\u1ec1n t\u1ea3ng.\n    <\/p>\n<h2>&#8220;Hello, World!&#8221; Hi\u1ec7n \u0111\u1ea1i<\/h2>\n<p>\n        M\u1eb7c d\u00f9 v\u00ed d\u1ee5 kinh \u0111i\u1ec3n in v\u0103n b\u1ea3n ra m\u1ed9t terminal, kh\u00e1i ni\u1ec7m n\u00e0y \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00f4 h\u00ecnh m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i.\n    <\/p>\n<ul>\n<li><strong>Ph\u00e1t tri\u1ec3n Web:<\/strong> M\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh &#8220;Hello, World!&#8221; th\u01b0\u1eddng bao g\u1ed3m vi\u1ec7c t\u1ea1o m\u1ed9t trang HTML \u0111\u01a1n gi\u1ea3n v\u1edbi v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb trong tr\u00ecnh duy\u1ec7t.<\/li>\n<li><strong>Ph\u00e1t tri\u1ec3n Di \u0111\u1ed9ng:<\/strong> N\u00f3 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng v\u1edbi m\u1ed9t m\u00e0n h\u00ecnh duy nh\u1ea5t hi\u1ec3n th\u1ecb c\u1ee5m t\u1eeb d\u01b0\u1edbi d\u1ea1ng m\u1ed9t nh\u00e3n (label).<\/li>\n<li><strong>Ph\u1ea7n c\u1ee9ng\/IoT:<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang nh\u01b0 Arduino, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi &#8220;Hello, World!&#8221; th\u01b0\u1eddng l\u00e0 \u0111o\u1ea1n m\u00e3 <strong>Blink<\/strong>\u2014m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 l\u00e0m cho \u0111\u00e8n LED b\u1eadt v\u00e0 t\u1eaft, x\u00e1c nh\u1eadn giao di\u1ec7n ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n<p>\n        D\u01b0\u1edbi m\u1ecdi h\u00ecnh th\u1ee9c, nguy\u00ean t\u1eafc v\u1eabn gi\u1eef nguy\u00ean: <strong>th\u1ef1c thi ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n nh\u1ea5t tuy\u1ec7t \u0111\u1ed1i \u0111\u1ec3 ch\u1ee9ng minh h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng.<\/strong>\n    <\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>\n        &#8220;Hello, World!&#8221; kh\u00f4ng ch\u1ec9 l\u00e0 m\u00e3; n\u00f3 l\u00e0 m\u1ed9t th\u1ec3 ch\u1ebf. N\u00f3 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p ho\u00e0n h\u1ea3o gi\u1eefa s\u1ef1 \u0111\u01a1n gi\u1ea3n, ti\u1ec7n \u00edch v\u00e0 t\u00ednh ph\u1ed5 qu\u00e1t, l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng c\u1ee5 kh\u00f4ng th\u1ec3 thay th\u1ebf trong gi\u00e1o d\u1ee5c l\u1eadp tr\u00ecnh. N\u00f3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1eeda ng\u00f5 d\u1eabn \u0111\u1ebfn c\u00e1c kh\u00e1i ni\u1ec7m l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p, m\u1ed9t b\u00e0i ki\u1ec3m tra \u0111\u00e1ng tin c\u1eady cho b\u1ea5t k\u1ef3 m\u00f4i tr\u01b0\u1eddng ph\u00e1t tri\u1ec3n n\u00e0o, v\u00e0 l\u00e0 c\u00e1ch n\u00f3i t\u1eaft trong v\u0103n h\u00f3a cho \u00fd ngh\u0129a &#8220;T\u00f4i \u1edf \u0111\u00e2y, v\u00e0 t\u00f4i \u0111\u00e3 s\u1eb5n s\u00e0ng \u0111\u1ec3 b\u1eaft \u0111\u1ea7u.&#8221; M\u1ed7i khi m\u1ed9t l\u1eadp tr\u00ecnh vi\u00ean th\u1ef1c thi c\u1ee5m t\u1eeb n\u00e0y, h\u1ecd \u0111ang tham gia v\u00e0o m\u1ed9t truy\u1ec1n th\u1ed1ng k\u00e9o d\u00e0i h\u00e0ng th\u1eadp k\u1ef7, k\u1ef7 ni\u1ec7m s\u1ef1 t\u01b0\u01a1ng t\u00e1c th\u00e0nh c\u00f4ng \u0111\u1ea7u ti\u00ean gi\u1eefa \u00fd \u0111\u1ecbnh c\u1ee7a con ng\u01b0\u1eddi v\u00e0 logic c\u1ee7a m\u00e1y m\u00f3c. \u0110\u00f3 l\u00e0 l\u1eddi ch\u00e0o vui v\u1ebb, kh\u00f4ng ph\u1ee9c t\u1ea1p, b\u1eaft \u0111\u1ea7u m\u1ecdi h\u00e0nh tr\u00ecnh v\u00e0o th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1.\n    <\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ee5m t\u1eeb &#8220;Hello, World!&#8221; \u0111\u01b0\u1ee3c cho l\u00e0 thu\u1eadt ng\u1eef c\u01a1 b\u1ea3n v\u00e0 n\u1ed5i ti\u1ebfng nh\u1ea5t trong l\u1eadp tr\u00ecnh m\u00e1y t\u00ednh<\/p>\n","protected":false},"author":1,"featured_media":15,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/posts\/1","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/comments?post=1"}],"version-history":[{"count":4,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/posts\/1\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/posts\/1\/revisions\/18"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/media\/15"}],"wp:attachment":[{"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/media?parent=1"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/categories?post=1"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dnmhospitality.com\/vi\/tin-tuc\/wp-json\/wp\/v2\/tags?post=1"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}