{"id":475918,"date":"2023-08-09T07:24:43","date_gmt":"2023-08-09T07:24:43","guid":{"rendered":""},"modified":"2023-09-05T11:11:34","modified_gmt":"2023-09-05T11:11:34","slug":"assertion","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/assertion\/","title":{"rendered":"Qu\u1ea3 quy\u1ebft"},"content":{"rendered":"<p>Kh\u1eb3ng \u0111\u1ecbnh l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef quan tr\u1ecdng trong \u0111i\u1ec7n to\u00e1n v\u00e0 k\u1ebft n\u1ed1i m\u1ea1ng. N\u00f3i chung, n\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t tuy\u00ean b\u1ed1 ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c cho l\u00e0 \u0111\u00fang t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3 trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n ch\u01b0\u01a1ng tr\u00ecnh. Trong ng\u1eef c\u1ea3nh c\u1ee7a m\u00e1y ch\u1ee7 proxy, m\u1ed9t x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c x\u00e1c minh c\u00e1c y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a ch\u00fang, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng m\u00e1y ch\u1ee7 proxy an to\u00e0n.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean c\u1ee7a kh\u1eb3ng \u0111\u1ecbnh<\/h2>\n<p>Kh\u00e1i ni\u1ec7m kh\u1eb3ng \u0111\u1ecbnh l\u1ea7n \u0111\u1ea7u ti\u00ean xu\u1ea5t hi\u1ec7n v\u00e0o nh\u1eefng n\u0103m 1940 v\u00e0 50 khi khoa h\u1ecdc m\u00e1y t\u00ednh b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh. Tuy nhi\u00ean, n\u00f3 \u0111\u01b0\u1ee3c ch\u00fa \u00fd nhi\u1ec1u h\u01a1n v\u00e0o nh\u1eefng n\u0103m 1970 khi nh\u00e0 khoa h\u1ecdc m\u00e1y t\u00ednh n\u1ed5i ti\u1ebfng Tony Hoare gi\u1edbi thi\u1ec7u c\u00e1ch ti\u1ebfp c\u1eadn ti\u00ean \u0111\u1ec1 \u0111\u1ec3 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. C\u00e1ch ti\u1ebfp c\u1eadn c\u1ee7a Hoare, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Hoare Logic, s\u1eed d\u1ee5ng \u0111\u00e1ng k\u1ec3 c\u00e1c x\u00e1c nh\u1eadn \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh v\u00e0 x\u00e1c minh t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a ph\u1ea7n m\u1ec1m m\u1ed9t c\u00e1ch ch\u00ednh th\u1ee9c.<\/p>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c x\u00e1c nh\u1eadn k\u1ec3 t\u1eeb \u0111\u00f3 \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn trong nhi\u1ec1u ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh, bao g\u1ed3m Java, C++, Python v\u00e0 JavaScript, c\u00f9ng nhi\u1ec1u ng\u00f4n ng\u1eef kh\u00e1c. Ch\u00fang \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1eadn d\u1ee5ng nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong vi\u1ec7c ph\u00e1t tri\u1ec3n, g\u1ee1 l\u1ed7i v\u00e0 b\u1ea3o tr\u00ec ph\u1ea7n m\u1ec1m.<\/p>\n<h2>M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1: Kh\u1eb3ng \u0111\u1ecbnh \u1edf \u0111\u1ed9 s\u00e2u<\/h2>\n<p>M\u1ed9t x\u00e1c nh\u1eadn trong \u0111i\u1ec7n to\u00e1n l\u00e0 m\u1ed9t tuy\u00ean b\u1ed1 r\u1eb1ng m\u1ed9t v\u1ecb t\u1eeb (h\u00e0m c\u00f3 gi\u00e1 tr\u1ecb Boolean, t\u1ee9c l\u00e0 bi\u1ec3u th\u1ee9c \u0111\u00fang-sai) \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng l\u00e0 lu\u00f4n \u0111\u00fang t\u1ea1i \u0111i\u1ec3m \u0111\u00f3 trong m\u00e3. N\u1ebfu m\u1ed9t x\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 \u0111\u00fang th\u00ec ch\u01b0\u01a1ng tr\u00ecnh s\u1ebd ti\u1ebfp t\u1ee5c nh\u01b0 b\u00ecnh th\u01b0\u1eddng. M\u1eb7t kh\u00e1c, n\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 sai, AssertionError s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a ra v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh th\u01b0\u1eddng b\u1ecb ch\u1ea5m d\u1ee9t.<\/p>\n<p>C\u00e1c x\u00e1c nh\u1eadn th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1eadp tr\u00ecnh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00e0 ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea3i \u0111\u00e1p \u1ee9ng. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c giai \u0111o\u1ea1n g\u1ee1 l\u1ed7i v\u00e0 th\u1eed nghi\u1ec7m c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, n\u01a1i ch\u00fang c\u00f3 th\u1ec3 gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i l\u1eadp tr\u00ecnh. Khi \u0111\u01b0\u1ee3c tri\u1ec3n khai ch\u00ednh x\u00e1c, c\u00e1c x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tin c\u1eady v\u00e0 kh\u1ea3 n\u0103ng \u0111\u1ecdc c\u1ee7a m\u00e3, gi\u00fap nh\u00e0 ph\u00e1t tri\u1ec3n hi\u1ec3u logic c\u1ee7a m\u00e3 d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u00e3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 d\u1ef1 \u0111\u1ecbnh.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a s\u1ef1 kh\u1eb3ng \u0111\u1ecbnh v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3<\/h2>\n<p>M\u1ed9t x\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb hai th\u00e0nh ph\u1ea7n ch\u00ednh: \u0111i\u1ec1u ki\u1ec7n x\u00e1c nh\u1eadn v\u00e0 th\u00f4ng b\u00e1o l\u1ed7i x\u00e1c nh\u1eadn. \u0110i\u1ec1u ki\u1ec7n x\u00e1c nh\u1eadn l\u00e0 \u0111i\u1ec1u ki\u1ec7n logic ho\u1eb7c bi\u1ec3u th\u1ee9c Boolean m\u00e0 ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m tra. N\u1ebfu \u0111i\u1ec1u ki\u1ec7n n\u00e0y kh\u00f4ng th\u00e0nh c\u00f4ng (ngh\u0129a l\u00e0 \u0111\u00e1nh gi\u00e1 l\u00e0 sai), ch\u01b0\u01a1ng tr\u00ecnh s\u1ebd \u0111\u01b0a ra l\u1ed7i x\u00e1c nh\u1eadn v\u00e0 th\u01b0\u1eddng hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i x\u00e1c nh\u1eadn.<\/p>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n v\u1ec1 m\u1ed9t x\u00e1c nh\u1eadn trong Python:<\/p>\n<pre><div class=\"bg-black rounded-md mb-4\"><div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans justify-between rounded-t-md\"><span>tr\u0103n<\/span><button class=\"flex ml-auto gap-2\"><svg stroke=\"currentColor\" fill=\"none\" stroke-width=\"2\" viewbox=\"0 0 24 24\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"h-4 w-4\" height=\"1em\" width=\"1em\" ><path d=\"M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2\"><\/path><rect x=\"8\" y=\"2\" width=\"8\" height=\"4\" rx=\"1\" ry=\"1\"><\/rect><\/svg>Sao ch\u00e9p m\u00e3<\/button><\/div><div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-python\" data-no-translation=\"\">x = <span class=\"hljs-number\">10<\/span>\n<span class=\"hljs-keyword\">assert<\/span> x == <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-string\">\"The value of x is not 10\"<\/span>\n<\/code><\/div><\/div><\/pre>\n<p>Trong v\u00ed d\u1ee5 n\u00e0y, <code data-no-translation=\"\">x == 10<\/code> l\u00e0 \u0111i\u1ec1u ki\u1ec7n x\u00e1c nh\u1eadn v\u00e0 \u201cGi\u00e1 tr\u1ecb c\u1ee7a x kh\u00f4ng ph\u1ea3i l\u00e0 10\u201d l\u00e0 th\u00f4ng b\u00e1o l\u1ed7i x\u00e1c nh\u1eadn. N\u1ebfu nh\u01b0 <code data-no-translation=\"\">x<\/code> l\u00e0 b\u1ea5t k\u1ef3 gi\u00e1 tr\u1ecb n\u00e0o kh\u00e1c 10, l\u1ed7i x\u00e1c nh\u1eadn s\u1ebd xu\u1ea5t hi\u1ec7n c\u00f9ng v\u1edbi th\u00f4ng b\u00e1o l\u1ed7i t\u01b0\u01a1ng \u1ee9ng.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a kh\u1eb3ng \u0111\u1ecbnh<\/h2>\n<p>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a kh\u1eb3ng \u0111\u1ecbnh bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>Ph\u00e1t hi\u1ec7n l\u1ed7i<\/strong>: C\u00e1c x\u00e1c nh\u1eadn gi\u00fap t\u00ecm ra l\u1ed7i nhanh h\u01a1n v\u00e0 d\u1ec5 d\u00e0ng h\u01a1n trong m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh. Ch\u00fang \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh l\u1edbn, ph\u1ee9c t\u1ea1p.<\/p>\n<\/li>\n<li>\n<p><strong>T\u00e0i li\u1ec7u m\u00e3<\/strong>: C\u00e1c x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t d\u1ea1ng t\u00e0i li\u1ec7u. Khi \u0111\u1ecdc m\u00e3, nh\u00e0 ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 hi\u1ec3u h\u00e0nh vi d\u1ef1 ki\u1ebfn c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<\/li>\n<li>\n<p><strong>Th\u1ef1c thi t\u00ednh \u0111\u00fang \u0111\u1eafn<\/strong>: C\u00e1c x\u00e1c nh\u1eadn \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng nh\u01b0 mong \u0111\u1ee3i b\u1eb1ng c\u00e1ch th\u1ef1c thi c\u00e1c \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. N\u1ebfu nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng, ch\u01b0\u01a1ng tr\u00ecnh s\u1ebd ng\u1eebng th\u1ef1c thi.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i kh\u1eb3ng \u0111\u1ecbnh<\/h2>\n<p>Th\u00f4ng th\u01b0\u1eddng c\u00f3 hai lo\u1ea1i kh\u1eb3ng \u0111\u1ecbnh: ti\u1ec1n \u0111i\u1ec1u ki\u1ec7n v\u00e0 h\u1eadu \u0111i\u1ec1u ki\u1ec7n.<\/p>\n<ol>\n<li>\n<p><strong>\u0110i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft<\/strong>: \u0110\u00e2y l\u00e0 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n tr\u01b0\u1edbc khi m\u1ed9t h\u00e0m ho\u1eb7c thao t\u00e1c \u0111\u01b0\u1ee3c th\u1ef1c thi. V\u00ed d\u1ee5: n\u1ebfu m\u1ed9t h\u00e0m mong mu\u1ed1n \u0111\u1ed1i s\u1ed1 c\u1ee7a n\u00f3 l\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng th\u00ec \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft s\u1ebd x\u00e1c nh\u1eadn r\u1eb1ng \u0111\u1ed1i s\u1ed1 \u0111\u00f3 th\u1ef1c s\u1ef1 l\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng.<\/p>\n<\/li>\n<li>\n<p><strong>H\u1eadu \u0111i\u1ec1u ki\u1ec7n<\/strong>: \u0110\u00e2y l\u00e0 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n m\u00e0 m\u1ed9t h\u00e0m \u0111\u1ea3m b\u1ea3o khi n\u00f3 ho\u00e0n th\u00e0nh. V\u00ed d\u1ee5: n\u1ebfu m\u1ed9t h\u00e0m \u0111\u01b0\u1ee3c cho l\u00e0 tr\u1ea3 v\u1ec1 m\u1ed9t danh s\u00e1ch \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n, th\u00ec \u0111i\u1ec1u ki\u1ec7n sau s\u1ebd x\u00e1c nh\u1eadn r\u1eb1ng danh s\u00e1ch tr\u1ea3 v\u1ec1 \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp nh\u01b0 mong \u0111\u1ee3i.<\/p>\n<\/li>\n<\/ol>\n<h2>S\u1eed d\u1ee5ng Kh\u1eb3ng \u0111\u1ecbnh: V\u1ea5n \u0111\u1ec1 v\u00e0 Gi\u1ea3i ph\u00e1p<\/h2>\n<p>M\u1eb7c d\u00f9 c\u00e1c x\u00e1c nh\u1eadn l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m nh\u01b0ng ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n.<\/p>\n<p><strong>V\u1ea5n \u0111\u1ec1<\/strong>: M\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn l\u00e0 s\u1eed d\u1ee5ng c\u00e1c x\u00e1c nh\u1eadn \u0111\u1ec3 x\u1eed l\u00fd l\u1ed7i th\u1eddi gian ch\u1ea1y. C\u00e1c x\u00e1c nh\u1eadn nh\u1eb1m m\u1ee5c \u0111\u00edch g\u1ee1 l\u1ed7i v\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c l\u1ed7i c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t.<\/p>\n<p><strong>Gi\u1ea3i ph\u00e1p<\/strong>: Thay v\u00ec x\u00e1c nh\u1eadn, n\u00ean s\u1eed d\u1ee5ng ngo\u1ea1i l\u1ec7 \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c l\u1ed7i \u0111\u00f3.<\/p>\n<p><strong>V\u1ea5n \u0111\u1ec1<\/strong>: Vi\u1ec7c l\u1ea1m d\u1ee5ng c\u00e1c x\u00e1c nh\u1eadn c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn m\u00e3 kh\u00f3 \u0111\u1ecdc v\u00e0 kh\u00f3 hi\u1ec3u.<\/p>\n<p><strong>Gi\u1ea3i ph\u00e1p<\/strong>: Nh\u00e0 ph\u00e1t tri\u1ec3n n\u00ean \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng v\u00e0 ch\u1ec9 s\u1eed d\u1ee5ng c\u00e1c x\u00e1c nh\u1eadn khi ch\u00fang mang l\u1ea1i gi\u00e1 tr\u1ecb \u0111\u00e1ng k\u1ec3.<\/p>\n<h2>So s\u00e1nh kh\u1eb3ng \u0111\u1ecbnh v\u1edbi c\u00e1c \u0111i\u1ec1u kho\u1ea3n t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Qu\u1ea3 quy\u1ebft<\/td>\n<td>M\u1ed9t c\u00e2u l\u1ec7nh trong ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1eb7t ra m\u1ed9t \u0111i\u1ec1u ki\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1ee1 l\u1ed7i.<\/td>\n<\/tr>\n<tr>\n<td>Ngo\u1ea1i l\u1ec7<\/td>\n<td>M\u1ed9t s\u1ef1 ki\u1ec7n trong qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n ch\u01b0\u01a1ng tr\u00ecnh l\u00e0m gi\u00e1n \u0111o\u1ea1n lu\u1ed3ng l\u1ec7nh th\u00f4ng th\u01b0\u1eddng. D\u00f9ng \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c l\u1ed7i ho\u1eb7c t\u00ecnh tr\u1ea1ng b\u1ea5t th\u01b0\u1eddng.<\/td>\n<\/tr>\n<tr>\n<td>Tr\u01b0\u1eddng h\u1ee3p th\u1eed nghi\u1ec7m<\/td>\n<td>M\u1ed9t t\u1eadp h\u1ee3p c\u00e1c \u0111i\u1ec1u ki\u1ec7n ho\u1eb7c bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1eb7c h\u00e0m c\u00f3 ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c hay kh\u00f4ng.<\/td>\n<\/tr>\n<tr>\n<td>L\u1ed7i<\/td>\n<td>M\u1ed9t l\u1ed7i trong ch\u01b0\u01a1ng tr\u00ecnh t\u1ea1o ra k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c kh\u00f4ng mong mu\u1ed1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn kh\u1eb3ng \u0111\u1ecbnh<\/h2>\n<p>Khi qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, vai tr\u00f2 c\u1ee7a c\u00e1c x\u00e1c nh\u1eadn d\u1ef1 ki\u1ebfn s\u1ebd ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n. Ch\u00fang ta c\u00f3 th\u1ec3 s\u1ebd th\u1ea5y c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 c\u00f4ng c\u1ee5 x\u00e1c nh\u1eadn ph\u1ee9c t\u1ea1p h\u01a1n n\u1eefa \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c g\u1ee1 l\u1ed7i hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a ph\u1ea7n m\u1ec1m.<\/p>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u00ednh th\u1ee9c v\u00e0 ki\u1ec3m tra m\u00f4 h\u00ecnh, trong \u0111\u00f3 c\u00e1c x\u00e1c nh\u1eadn \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng, \u0111ang thu h\u00fat \u0111\u01b0\u1ee3c s\u1ef1 ch\u00fa \u00fd trong c\u00e1c l\u0129nh v\u1ef1c quan tr\u1ecdng v\u1ec1 an to\u00e0n, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u1ea7n m\u1ec1m \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe. Trong th\u1eddi \u0111\u1ea1i AI v\u00e0 h\u1ecdc m\u00e1y, c\u00e1c x\u00e1c nh\u1eadn c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c minh t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c thu\u1eadt to\u00e1n v\u00e0 m\u00f4 h\u00ecnh AI.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy v\u00e0 x\u00e1c nh\u1eadn<\/h2>\n<p>Trong b\u1ed1i c\u1ea3nh c\u00e1c m\u00e1y ch\u1ee7 proxy gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p, c\u00e1c x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n v\u00e0 b\u1ea3o m\u1eadt cho c\u00e1c y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng. V\u00ed d\u1ee5: m\u1ed9t x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng \u0111\u1ebfn t\u1eeb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng ho\u1eb7c n\u1ed9i dung c\u1ee7a y\u00eau c\u1ea7u \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ecbnh d\u1ea1ng nh\u1ea5t \u0111\u1ecbnh. B\u1eb1ng c\u00e1ch tri\u1ec3n khai c\u00e1c lo\u1ea1i x\u00e1c nh\u1eadn n\u00e0y, OneProxy c\u00f3 th\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng c\u1ee7a m\u00ecnh.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ol>\n<li><a href=\"https:\/\/docs.python.org\/3\/reference\/simple_stmts.html#the-assert-statement\" target=\"_new\" rel=\"noopener nofollow\">C\u00e1c x\u00e1c nh\u1eadn trong Python \u2013 T\u00e0i li\u1ec7u Python<\/a><\/li>\n<li><a href=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/technotes\/guides\/language\/assert.html\" target=\"_new\" rel=\"noopener nofollow\">S\u1eed d\u1ee5ng c\u00e1c x\u00e1c nh\u1eadn m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u2013 T\u00e0i li\u1ec7u Oracle<\/a><\/li>\n<li><a href=\"https:\/\/computerhistory.org\/profile\/tony-hoare\/\" target=\"_new\" rel=\"noopener nofollow\">Tony Hoare v\u00e0 Kh\u1eb3ng \u0111\u1ecbnh \u2013 B\u1ea3o t\u00e0ng L\u1ecbch s\u1eed M\u00e1y t\u00ednh<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/\" target=\"_new\" rel=\"noopener\">OneProxy \u2013 Trang web ch\u00ednh th\u1ee9c<\/a><\/li>\n<\/ol>","protected":false},"featured_media":467644,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-475918","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Assertion in Computing and Networking<\/mark>","faq_items":[{"question":"What is an assertion in computing and networking?","answer":"<p>An assertion in computing is a statement that a predicate (Boolean-valued function, i.e., a true\u2013false expression) is expected to always be true at that point in the code. If an assertion evaluates to true, then the program continues as usual. On the other hand, if it evaluates to false, an AssertionError is thrown, and the program is typically terminated. In the context of a proxy server, an assertion may involve verifying client requests and their integrity, especially in secure proxy server environments.<\/p>"},{"question":"Who introduced the concept of assertions in software development?","answer":"<p>The concept of assertion in software development was significantly utilized by renowned computer scientist Tony Hoare. In the 1970s, Hoare introduced an axiomatic approach to developing software, also known as Hoare Logic, which employed assertions to formally specify and verify software correctness.<\/p>"},{"question":"What are the key features of assertions?","answer":"<p>The primary features of assertions include bug detection, code documentation, and enforcing correctness. Assertions help in finding bugs more quickly and easily in a program, especially in large, complex programs. They can act as a form of documentation, helping developers understand the program's expected behavior at a certain point. Assertions also ensure that a program behaves as expected by enforcing certain conditions.<\/p>"},{"question":"What are the two types of assertions?","answer":"<p>The two main types of assertions are preconditions and postconditions. Preconditions are the conditions that must be satisfied before a function or operation is executed. Postconditions are the conditions that a function guarantees at its completion.<\/p>"},{"question":"What are some common problems and solutions when using assertions?","answer":"<p>One common problem is using assertions to handle runtime errors. This is not ideal as assertions are meant for debugging and development purposes and should not be used to handle errors that can occur in the production environment. The solution is to use exceptions to handle such errors. Another problem is overusing assertions, which can make code difficult to read and understand. Developers should strike a balance and only use assertions where they add significant value.<\/p>"},{"question":"How are assertions related to proxy servers?","answer":"<p>In the context of proxy servers like those provided by OneProxy, assertions can play a crucial role in ensuring the integrity and security of client requests. For instance, an assertion might be used to confirm that a client's request is coming from a recognized IP address, or that the request's content meets certain formatting standards.<\/p>"},{"question":"What is the future of assertions in computing?","answer":"<p>As software development continues to advance, the role of assertions is expected to grow and evolve. We're likely to see even more sophisticated assertion methodologies and tools designed to facilitate effective debugging and ensure software correctness. Assertions might also be used in verifying the correctness of AI algorithms and models.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/475918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/475918\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/467644"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=475918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}