{"id":639,"date":"2026-03-30T05:48:38","date_gmt":"2026-03-30T05:48:38","guid":{"rendered":"https:\/\/www.visualize-ai.com\/vi\/state-diagram-debugging-strategies\/"},"modified":"2026-03-30T05:48:38","modified_gmt":"2026-03-30T05:48:38","slug":"state-diagram-debugging-strategies","status":"publish","type":"post","link":"https:\/\/www.visualize-ai.com\/vi\/state-diagram-debugging-strategies\/","title":{"rendered":"G\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: C\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i logic \u1ea9n"},"content":{"rendered":"

Thi\u1ebft k\u1ebf m\u00e1y tr\u1ea1ng th\u00e1i l\u00e0 m\u1ed9t b\u00e0i t\u1eadp \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. M\u1ed9t chuy\u1ec3n ti\u1ebfp b\u1ecb \u0111\u1eb7t sai hay m\u1ed9t s\u1ef1 ki\u1ec7n ch\u01b0a \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u00e0nh vi h\u1ec7 th\u1ed1ng kh\u00f4ng th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c. Khi m\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c thi, n\u00f3 th\u01b0\u1eddng tu\u00e2n theo s\u01a1 \u0111\u1ed3, nh\u01b0ng ch\u00ednh s\u01a1 \u0111\u1ed3 c\u00f3 th\u1ec3 \u1ea9n ch\u1ee9a nh\u1eefng m\u00e2u thu\u1eabn. G\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i \u0111\u00f2i h\u1ecfi s\u1ef1 thay \u0111\u1ed5i t\u01b0 duy t\u1eeb vi\u1ec7c ki\u1ec3m tra m\u00e3 th\u00f4ng th\u01b0\u1eddng sang l\u00fd thuy\u1ebft \u0111\u1ed3 th\u1ecb v\u00e0 x\u00e1c minh logic. H\u01b0\u1edbng d\u1eabn n\u00e0y n\u00eau r\u00f5 c\u00e1ch nh\u1eadn di\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c c\u00e1c l\u1ed7i logic \u1ea9n trong c\u00e1c m\u00f4 h\u00ecnh m\u00e1y tr\u1ea1ng th\u00e1i.<\/p>\n

D\u00f9 b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c v\u1edbi s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i UML, M\u00e1y tr\u1ea1ng th\u00e1i h\u1eefu h\u1ea1n (FSM) hay logic tr\u1ea1ng th\u00e1i t\u00f9y ch\u1ec9nh, nh\u1eefng th\u00e1ch th\u1ee9c c\u01a1 b\u1ea3n v\u1eabn lu\u00f4n gi\u1ed1ng nhau. \u0110\u1ed9 ph\u1ee9c t\u1ea1p t\u0103ng l\u00ean theo th\u1ee9 b\u1eadc, t\u00ednh \u0111\u1ed3ng th\u1eddi v\u00e0 c\u00e1c tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed. B\u00e0i vi\u1ebft n\u00e0y t\u1eadp trung v\u00e0o c\u00e1c chi\u1ebfn l\u01b0\u1ee3c c\u1ed1t l\u00f5i \u0111\u1ec3 x\u00e1c minh c\u00e1c m\u00f4 h\u00ecnh n\u00e0y tr\u01b0\u1edbc khi ch\u00fang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t.<\/p>\n

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\"Kawaii-style<\/figure>\n<\/div>\n

\ud83e\udde9 Hi\u1ec3u r\u00f5 c\u00e1c \u0111i\u1ec3m y\u1ebfu c\u1ee7a m\u00e1y tr\u1ea1ng th\u00e1i<\/h2>\n

S\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i l\u00e0 bi\u1ec3u di\u1ec5n tr\u1ef1c quan v\u1ec1 h\u00e0nh vi h\u1ec7 th\u1ed1ng. M\u1eb7c d\u00f9 ch\u00fang mang l\u1ea1i s\u1ef1 r\u00f5 r\u00e0ng, nh\u01b0ng ch\u00fang c\u0169ng t\u1ea1o ra c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i c\u1ee5 th\u1ec3 kh\u00e1c bi\u1ec7t v\u1edbi l\u1ed7i m\u00e3 tu\u1ea7n t\u1ef1. Nh\u1eefng \u0111i\u1ec3m y\u1ebfu n\u00e0y th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb c\u1ea5u tr\u00fac \u0111\u1ed3 th\u1ecb thay v\u00ec c\u00e1ch tri\u1ec3n khai c\u00e1c b\u1ed9 x\u1eed l\u00fd s\u1ef1 ki\u1ec7n.<\/p>\n

Khi g\u1ee1 l\u1ed7i, b\u1ea1n ph\u1ea3i t\u00ecm ki\u1ebfm c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac tr\u01b0\u1edbc ti\u00ean. M\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn tr\u1ea1ng th\u00e1i k\u1ebft th\u00fac ho\u1eb7c b\u1ecb k\u1eb9t trong v\u00f2ng l\u1eb7p m\u00e0 kh\u00f4ng ti\u1ebfn tri\u1ec3n l\u00e0 c\u01a1 b\u1ea3n \u0111\u00e3 b\u1ecb h\u1ecfng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u1ec3 lo\u1ea1i ch\u00ednh c\u1ee7a l\u1ed7i logic \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i.<\/p>\n

    \n
  • Ch\u1ebft ch\u1eafn:<\/strong> M\u1ed9t tr\u1ea1ng th\u00e1i m\u00e0 kh\u00f4ng c\u00f3 chuy\u1ec3n ti\u1ebfp ra n\u00e0o cho s\u1ef1 ki\u1ec7n hi\u1ec7n t\u1ea1i, l\u00e0m h\u1ec7 th\u1ed1ng d\u1eebng l\u1ea1i.<\/li>\n
  • Chuy\u1ec3n ti\u1ebfp th\u1eeba:<\/strong> C\u00e1c s\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t c\u00e1c h\u00e0nh tr\u00ecnh kh\u00f4ng mong mu\u1ed1n do c\u00e1c tr\u1ea1ng th\u00e1i \u0111\u00edch m\u1eadp m\u1edd.<\/li>\n
  • C\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn:<\/strong> C\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c v\u00e0o t\u1eeb tr\u1ea1ng th\u00e1i kh\u1edfi \u0111\u1ea7u, khi\u1ebfn ch\u00fang tr\u1edf n\u00ean v\u00f4 d\u1ee5ng.<\/li>\n
  • C\u00e1c tr\u1ea1ng th\u00e1i th\u1eeba:<\/strong> Nhi\u1ec1u tr\u1ea1ng th\u00e1i th\u1ef1c hi\u1ec7n c\u00e1c ch\u1ee9c n\u0103ng gi\u1ed1ng nhau, l\u00e0m ph\u1ee9c t\u1ea1p vi\u1ec7c b\u1ea3o tr\u00ec.<\/li>\n
  • C\u00e1c s\u1ef1 ki\u1ec7n thi\u1ebfu v\u1eafng:<\/strong> C\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 h\u1ec7 th\u1ed1ng kh\u00f4ng c\u00f3 b\u1ed9 x\u1eed l\u00fd cho m\u1ed9t \u0111\u1ea7u v\u00e0o c\u1ee5 th\u1ec3 trong m\u1ed9t tr\u1ea1ng th\u00e1i nh\u1ea5t \u0111\u1ecbnh.<\/li>\n
  • L\u1ed7i tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed:<\/strong> C\u00e1c l\u1ed7i logic li\u00ean quan \u0111\u1ebfn tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed n\u00f4ng ho\u1eb7c s\u00e2u, l\u00e0m kh\u00f4i ph\u1ee5c ng\u1eef c\u1ea3nh sai.<\/li>\n<\/ul>\n

    Ph\u00e1t hi\u1ec7n nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y s\u1edbm s\u1ebd ng\u0103n ng\u1eeba vi\u1ec7c t\u00e1i c\u1ea5u tr\u00fac t\u1ed1n k\u00e9m sau n\u00e0y. Quy tr\u00ecnh g\u1ee1 l\u1ed7i bao g\u1ed3m c\u1ea3 vi\u1ec7c xem x\u00e9t t\u0129nh m\u00f4 h\u00ecnh v\u00e0 ki\u1ec3m th\u1eed \u0111\u1ed9ng c\u00e1c \u0111\u01b0\u1eddng \u0111i th\u1ef1c thi.<\/p>\n

    \ud83d\udee0\ufe0f C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n t\u00edch t\u0129nh<\/h2>\n

    Ph\u00e2n t\u00edch t\u0129nh bao g\u1ed3m vi\u1ec7c xem x\u00e9t s\u01a1 \u0111\u1ed3 m\u00e0 kh\u00f4ng c\u1ea7n th\u1ef1c thi logic n\u1ec1n t\u1ea3ng. Giai \u0111o\u1ea1n n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i v\u1ec1 c\u1ea5u tr\u00fac tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 m\u00e3 n\u00e0o \u0111\u01b0\u1ee3c sinh ra hay vi\u1ebft ra. M\u1ee5c ti\u00eau l\u00e0 x\u00e1c minh c\u00e1c thu\u1ed9c t\u00ednh to\u00e1n h\u1ecdc c\u1ee7a \u0111\u1ed3 th\u1ecb tr\u1ea1ng th\u00e1i.<\/p>\n

    1. Ph\u00e2n t\u00edch kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn<\/h3>\n

    M\u1ecdi tr\u1ea1ng th\u00e1i trong s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1ed1t \u0111\u1ec1u ph\u1ea3i c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c t\u1eeb n\u00fat kh\u1edfi \u0111\u1ea7u. \u0110\u1ec3 g\u1ee1 l\u1ed7i \u0111i\u1ec1u n\u00e0y, h\u00e3y theo d\u00f5i \u0111\u01b0\u1eddng \u0111i t\u1eeb tr\u1ea1ng th\u00e1i kh\u1edfi \u0111\u1ea7u \u0111\u1ebfn t\u1eebng tr\u1ea1ng th\u00e1i kh\u00e1c. N\u1ebfu m\u1ed9t tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn, th\u00ec \u0111\u00f3 l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m thi\u1ebft k\u1ebf v\u00f4 d\u1ee5ng.<\/p>\n

      \n
    • B\u1eaft \u0111\u1ea7u t\u1eeb Tr\u1ea1ng th\u00e1i kh\u1edfi \u0111\u1ea7u<\/strong>.<\/li>\n
    • Theo d\u00f5i t\u1ea5t c\u1ea3 c\u00e1c m\u0169i t\u00ean chuy\u1ec3n ti\u1ebfp c\u00f3 th\u1ec3.<\/li>\n
    • Ghi ch\u00fa l\u1ea1i m\u1ecdi tr\u1ea1ng th\u00e1i \u0111\u00e3 \u0111i qua.<\/li>\n
    • So s\u00e1nh c\u00e1c tr\u1ea1ng th\u00e1i \u0111\u00e3 ghi ch\u00fa v\u1edbi t\u1ed5ng s\u1ed1 tr\u1ea1ng th\u00e1i.<\/li>\n
    • M\u1ecdi tr\u1ea1ng th\u00e1i ch\u01b0a \u0111\u01b0\u1ee3c ghi ch\u00fa l\u00e0 kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn.<\/li>\n<\/ul>\n

      C\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 truy c\u1eadp th\u01b0\u1eddng x\u1ea3y ra khi m\u1ed9t tr\u1ea1ng th\u00e1i con \u0111\u01b0\u1ee3c nh\u00fang b\u00ean trong m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p m\u00e0 ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c v\u00e0o. Trong c\u00e1c t\u00ecnh hu\u1ed1ng g\u1ee1 l\u1ed7i, vi\u1ec7c lo\u1ea1i b\u1ecf c\u00e1c tr\u1ea1ng th\u00e1i n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i nh\u1eadn th\u1ee9c cho nh\u1eefng ng\u01b0\u1eddi b\u1ea3o tr\u00ec trong t\u01b0\u01a1ng lai.<\/p>\n

      2. T\u00ednh \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a chuy\u1ec3n ti\u1ebfp<\/h3>\n

      M\u1ed7i tr\u1ea1ng th\u00e1i n\u00ean x\u00e1c \u0111\u1ecbnh h\u00e0nh vi cho c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c mong \u0111\u1ee3i. N\u1ebfu m\u1ed9t s\u1ef1 ki\u1ec7n x\u1ea3y ra trong tr\u1ea1ng th\u00e1i m\u00e0 kh\u00f4ng c\u00f3 chuy\u1ec3n ti\u1ebfp n\u00e0o \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a, h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0 kh\u00f4ng x\u00e1c \u0111\u1ecbnh. \u0110\u00e2y l\u00e0 ngu\u1ed3n ph\u1ed5 bi\u1ebfn g\u00e2y ra l\u1ed7i khi ch\u1ea1y ch\u01b0\u01a1ng tr\u00ecnh ho\u1eb7c c\u00e1c l\u1ed7i im l\u1eb7ng.<\/p>\n

      Khi xem x\u00e9t s\u01a1 \u0111\u1ed3, h\u00e3y t\u00ecm ki\u1ebfm:<\/p>\n

        \n
      • Chuy\u1ec3n ti\u1ebfp m\u1eb7c \u0111\u1ecbnh:<\/strong>Tr\u1ea1ng th\u00e1i c\u00f3 x\u1eed l\u00fd \u0111\u1ea7u v\u00e0o kh\u00f4ng mong \u0111\u1ee3i m\u1ed9t c\u00e1ch tr\u01a1n tru kh\u00f4ng?<\/li>\n
      • Ph\u1ea1m vi x\u1eed l\u00fd s\u1ef1 ki\u1ec7n:<\/strong>T\u1ea5t c\u1ea3 c\u00e1c l\u1eddi g\u1ecdi API \u0111\u00e3 \u0111\u01b0\u1ee3c ghi ch\u00fa ho\u1eb7c h\u00e0nh \u0111\u1ed9ng ng\u01b0\u1eddi d\u00f9ng c\u00f3 \u0111\u01b0\u1ee3c \u00e1nh x\u1ea1 v\u00e0o c\u00e1c chuy\u1ec3n ti\u1ebfp kh\u00f4ng?<\/li>\n
      • \u0110i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7:<\/strong>C\u00f3 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 n\u00e0o ng\u0103n c\u1ea3n t\u1ea5t c\u1ea3 c\u00e1c chuy\u1ec3n ti\u1ebfp x\u1ea3y ra \u0111\u1ed3ng th\u1eddi, d\u1eabn \u0111\u1ebfn k\u1eb9t ch\u1ebft kh\u00f4ng?<\/li>\n<\/ul>\n

        M\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i v\u1eefng ch\u1eafc ph\u1ea3i x\u1eed l\u00fd c\u00e1c t\u00ecnh hu\u1ed1ng ‘gi\u1ea3 s\u1eed g\u00ec n\u1ebfu’. N\u1ebfu \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 c\u1ee7a m\u1ed9t chuy\u1ec3n ti\u1ebfp cho k\u1ebft qu\u1ea3 l\u00e0 sai, lu\u1ed3ng s\u1ebd \u0111i \u0111\u00e2u? N\u1ebfu kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng \u00e1n d\u1ef1 ph\u00f2ng, h\u1ec7 th\u1ed1ng s\u1ebd b\u1ecb \u0111\u00ecnh tr\u1ec7.<\/p>\n

        3. Ph\u00e1t hi\u1ec7n chu tr\u00ecnh<\/h3>\n

        C\u00e1c v\u00f2ng l\u1eb7p v\u00f4 h\u1ea1n b\u00ean trong m\u00e1y tr\u1ea1ng th\u00e1i c\u00f3 th\u1ec3 ti\u00eau t\u1ed1n t\u00e0i nguy\u00ean ho\u1eb7c l\u00e0m \u0111\u00f4ng c\u1ee9ng b\u1ed9 x\u1eed l\u00fd. Trong khi m\u1ed9t s\u1ed1 v\u00f2ng l\u1eb7p l\u00e0 c\u00f3 ch\u1ee7 \u0111\u00edch (v\u00ed d\u1ee5: ch\u1edd \u0111\u1ea7u v\u00e0o), m\u1ed9t s\u1ed1 kh\u00e1c l\u00e0 v\u00f4 t\u00ecnh.<\/p>\n

          \n
        • Theo d\u00f5i c\u00e1c h\u00e0nh tr\u00ecnh quay tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i gi\u1ed1ng nhau m\u00e0 kh\u00f4ng ti\u00eau t\u1ed1n th\u1eddi gian ho\u1eb7c s\u1ef1 ki\u1ec7n.<\/li>\n
        • X\u00e1c \u0111\u1ecbnh c\u00e1c v\u00f2ng l\u1eb7p ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 m\u00e0 kh\u00f4ng bao gi\u1edd thay \u0111\u1ed5i.<\/li>\n
        • \u0110\u1ea3m b\u1ea3o c\u00e1c v\u00f2ng l\u1eb7p c\u00f3 c\u01a1 ch\u1ebf \u0111\u1ec3 tho\u00e1t ra, ch\u1eb3ng h\u1ea1n nh\u01b0 th\u1eddi gian ch\u1edd ho\u1eb7c t\u00edn hi\u1ec7u b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n

          \ud83e\uddea Ki\u1ec3m th\u1eed \u0111\u1ed9ng v\u00e0 c\u00e1c \u0111\u01b0\u1eddng th\u1ef1c thi<\/h2>\n

          Ph\u00e2n t\u00edch t\u0129nh r\u1ea5t m\u1ea1nh m\u1ebd, nh\u01b0ng kh\u00f4ng th\u1ec3 m\u00f4 ph\u1ecfng th\u1eddi gian v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi. Ki\u1ec3m th\u1eed \u0111\u1ed9ng bao g\u1ed3m vi\u1ec7c cung c\u1ea5p c\u00e1c s\u1ef1 ki\u1ec7n v\u00e0o h\u1ec7 th\u1ed1ng v\u00e0 quan s\u00e1t c\u00e1c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i th\u1ef1c t\u1ebf. \u0110\u00e2y l\u00e0 n\u01a1i c\u00e1c l\u1ed7i logic \u1ea9n th\u01b0\u1eddng b\u1ecb ph\u00e1t hi\u1ec7n.<\/p>\n

          1. Ki\u1ec3m th\u1eed bao ph\u1ee7 \u0111\u01b0\u1eddng \u0111i<\/h3>\n

          M\u1ee5c ti\u00eau l\u00e0 th\u1ef1c thi m\u1ed7i chuy\u1ec3n ti\u1ebfp kh\u1ea3 d\u0129 \u00edt nh\u1ea5t m\u1ed9t l\u1ea7n. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i thi\u1ebft k\u1ebf c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed bu\u1ed9c h\u1ec7 th\u1ed1ng \u0111i qua c\u00e1c tr\u1ea1ng th\u00e1i c\u1ee5 th\u1ec3.<\/p>\n

            \n
          • \u00c1nh x\u1ea1 c\u00e1c tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed v\u00e0o c\u00e1c chuy\u1ec3n ti\u1ebfp trong s\u01a1 \u0111\u1ed3.<\/li>\n
          • \u0110\u1ea3m b\u1ea3o b\u1ea1n ki\u1ec3m th\u1eed \u0111\u01b0\u1eddng \u0111i ti\u00eau c\u1ef1c (n\u01a1i chuy\u1ec3n ti\u1ebfp kh\u00f4ng n\u00ean x\u1ea3y ra).<\/li>\n
          • X\u00e1c minh r\u1eb1ng h\u1ec7 th\u1ed1ng v\u1eabn \u1edf tr\u1ea1ng th\u00e1i \u0111\u00fang sau s\u1ef1 ki\u1ec7n.<\/li>\n
          • Ghi l\u1ea1i ID tr\u1ea1ng th\u00e1i sau m\u1ed7i s\u1ef1 ki\u1ec7n \u0111\u1ec3 x\u00e1c nh\u1eadn s\u01a1 \u0111\u1ed3 kh\u1edbp v\u1edbi th\u1ef1c t\u1ebf.<\/li>\n<\/ul>\n

            2. Ki\u1ec3m th\u1eed t\u1ea3i tr\u1ecdng cho c\u00e1c chuy\u1ec3n ti\u1ebfp tr\u1ea1ng th\u00e1i<\/h3>\n

            C\u00e1c s\u1ef1 ki\u1ec7n nhanh, li\u00ean ti\u1ebfp c\u00f3 th\u1ec3 l\u00e0m l\u1ed9 ra c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ea1nh tranh. N\u1ebfu hai s\u1ef1 ki\u1ec7n \u0111\u1ebfn li\u00ean ti\u1ebfp, m\u00e1y tr\u1ea1ng th\u00e1i c\u00f3 x\u1eed l\u00fd ch\u00fang theo th\u1ee9 t\u1ef1 \u0111\u00fang kh\u00f4ng? Vi\u1ec7c c\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i c\u00f3 di\u1ec5n ra m\u1ed9t c\u00e1ch nguy\u00ean t\u1eed kh\u00f4ng?<\/p>\n

              \n
            • G\u1eedi c\u00e1c s\u1ef1 ki\u1ec7n t\u1ea7n su\u1ea5t cao \u0111\u1ebfn b\u1ed9 x\u1eed l\u00fd tr\u1ea1ng th\u00e1i.<\/li>\n
            • Quan s\u00e1t xem h\u1ec7 th\u1ed1ng c\u00f3 b\u1ecf qua c\u00e1c tr\u1ea1ng th\u00e1i ho\u1eb7c x\u1eed l\u00fd ch\u00fang theo th\u1ee9 t\u1ef1 sai kh\u00f4ng.<\/li>\n
            • Ki\u1ec3m tra xem c\u00e1c tr\u1ea1ng th\u00e1i trung gian c\u00f3 hi\u1ec3n th\u1ecb hay h\u1ec7 th\u1ed1ng nh\u1ea3y th\u1eb3ng \u0111\u1ebfn tr\u1ea1ng th\u00e1i cu\u1ed1i kh\u00f4ng.<\/li>\n<\/ul>\n

              3. Ki\u1ec3m th\u1eed \u0111i\u1ec1u ki\u1ec7n bi\u00ean<\/h3>\n

              C\u00e1c tr\u01b0\u1eddng h\u1ee3p bi\u00ean th\u01b0\u1eddng \u1ea9n ch\u1ee9a nh\u1eefng l\u1ed7i logic. \u0110i\u1ec1u g\u00ec x\u1ea3y ra khi m\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i \u0111ang \u1edf tr\u1ea1ng th\u00e1i cu\u1ed1i c\u00f9ng v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t \u0111\u1ea7u v\u00e0o? \u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu m\u1ed9t chuy\u1ec3n ti\u1ebfp \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t ngay l\u1eadp t\u1ee9c sau khi v\u00e0o tr\u1ea1ng th\u00e1i?<\/p>\n

                \n
              • Ki\u1ec3m th\u1eed H\u00e0nh \u0111\u1ed9ng v\u00e0o tr\u1ea1ng th\u00e1i<\/strong> so v\u1edbi H\u00e0nh \u0111\u1ed9ng r\u1eddi tr\u1ea1ng th\u00e1i<\/strong> th\u1eddi gian.<\/li>\n
              • X\u00e1c minh h\u00e0nh vi khi chuy\u1ec3n ti\u1ebfp t\u1eeb tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u tr\u1ef1c ti\u1ebfp sang m\u1ed9t tr\u1ea1ng th\u00e1i con ph\u1ee9c t\u1ea1p.<\/li>\n
              • Ki\u1ec3m tra h\u00e0nh vi khi m\u1ed9t tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed \u0111\u01b0\u1ee3c g\u1ecdi nhi\u1ec1u l\u1ea7n.<\/li>\n<\/ul>\n

                \ud83d\udd0e Ghi nh\u1eadt k\u00fd theo d\u00f5i v\u00e0 li\u00ean k\u1ebft s\u1ef1 ki\u1ec7n<\/h2>\n

                Khi m\u1ed9t l\u1ed7i x\u1ea3y ra trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t, s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i l\u00e0 b\u1ea3n \u0111\u1ed3 c\u1ee7a b\u1ea1n. \u0110\u1ec3 t\u00ecm ra \u0111i\u1ec3m l\u1ed7i, b\u1ea1n c\u1ea7n m\u1ed9t d\u1ea5u v\u1ebft. Vi\u1ec7c tri\u1ec3n khai c\u01a1 ch\u1ebf ghi nh\u1eadt k\u00fd m\u1ea1nh m\u1ebd l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 g\u1ee1 l\u1ed7i c\u00e1c m\u00e1y tr\u1ea1ng th\u00e1i.<\/p>\n

                1. Ghi nh\u1eadt k\u00fd v\u00e0o v\u00e0 r\u1eddi tr\u1ea1ng th\u00e1i<\/h3>\n

                M\u1ed7i khi h\u1ec7 th\u1ed1ng v\u00e0o ho\u1eb7c r\u1eddi m\u1ed9t tr\u1ea1ng th\u00e1i, n\u00f3 n\u00ean ghi l\u1ea1i s\u1ef1 ki\u1ec7n n\u00e0y. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p m\u1ed9t d\u00f2ng th\u1eddi gian v\u1ec1 qu\u00e1 tr\u00ecnh th\u1ef1c thi.<\/p>\n

                  \n
                • Ghi nh\u1eadt k\u00fd Tr\u1ea1ng th\u00e1i ngu\u1ed3n<\/strong>.<\/li>\n
                • Ghi nh\u1eadt k\u00fd Tr\u1ea1ng th\u00e1i \u0111\u00edch<\/strong>.<\/li>\n
                • Ghi nh\u1eadt k\u00fd S\u1ef1 ki\u1ec7n k\u00edch ho\u1ea1t<\/strong>.<\/li>\n
                • Ghi nh\u1eadt k\u00fd Th\u1eddi \u0111i\u1ec3m<\/strong> v\u00e0 D\u1eef li\u1ec7u ng\u1eef c\u1ea3nh<\/strong>.<\/li>\n<\/ul>\n

                  D\u1eef li\u1ec7u n\u00e0y cho ph\u00e9p b\u1ea1n t\u00e1i t\u1ea1o l\u1ea1i h\u00e0nh tr\u00ecnh m\u00e0 h\u1ec7 th\u1ed1ng \u0111\u00e3 \u0111i qua tr\u01b0\u1edbc khi x\u1ea3y ra l\u1ed7i.<\/p>\n

                  2. \u0110\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7<\/h3>\n

                  C\u00e1c chuy\u1ec3n ti\u1ebfp th\u01b0\u1eddng ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 (\u0111i\u1ec1u ki\u1ec7n ki\u1ec3u boolean). N\u1ebfu m\u1ed9t chuy\u1ec3n ti\u1ebfp th\u1ea5t b\u1ea1i, c\u00f3 ph\u1ea3i do \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 sai, hay do s\u1ef1 ki\u1ec7n kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n?<\/p>\n

                    \n
                  • Ghi l\u1ea1i k\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 c\u1ee7a m\u1ed7i \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7.<\/li>\n
                  • Ghi l\u1ea1i c\u00e1c bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7.<\/li>\n
                  • X\u00e1c \u0111\u1ecbnh xem m\u1ed9t \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 c\u00f3 qu\u00e1 kh\u1eaft khe hay kh\u00f4ng.<\/li>\n<\/ul>\n

                    Kh\u00f4ng c\u00f3 s\u1ef1 minh b\u1ea1ch n\u00e0y, r\u1ea5t kh\u00f3 ph\u00e2n bi\u1ec7t gi\u1eefa m\u1ed9t l\u1ed7i logic trong m\u00e1y tr\u1ea1ng th\u00e1i v\u00e0 m\u1ed9t l\u1ed7i logic trong d\u1eef li\u1ec7u \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7.<\/p>\n

                    \u26a1 X\u1eed l\u00fd t\u00ednh \u0111\u1ed3ng th\u1eddi v\u00e0 t\u00ednh ph\u00e2n c\u1ea5p<\/h2>\n

                    C\u00e1c s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i n\u00e2ng cao s\u1eed d\u1ee5ng c\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c (t\u00ednh \u0111\u1ed3ng th\u1eddi) v\u00e0 c\u00e1c tr\u1ea1ng th\u00e1i l\u1ed3ng gh\u00e9p (t\u00ednh ph\u00e2n c\u1ea5p). Nh\u1eefng t\u00ednh n\u0103ng n\u00e0y mang l\u1ea1i s\u1ee9c m\u1ea1nh nh\u01b0ng c\u0169ng t\u1ea1o ra \u0111\u1ed9 ph\u1ee9c t\u1ea1p \u0111\u00e1ng k\u1ec3. Vi\u1ec7c g\u1ee1 l\u1ed7i c\u00e1c c\u1ea5u tr\u00fac n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc h\u01a1n v\u1ec1 c\u00e1ch k\u1ebft h\u1ee3p tr\u1ea1ng th\u00e1i.<\/p>\n

                    1. C\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c<\/h3>\n

                    C\u00e1c v\u00f9ng \u0111\u1ed3ng th\u1eddi ch\u1ea1y \u0111\u1ed9c l\u1eadp v\u1edbi nhau. M\u1ed9t l\u1ed7i trong m\u1ed9t v\u00f9ng c\u00f3 th\u1ec3 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng ngay \u0111\u1ebfn v\u00f9ng kh\u00e1c, d\u1eabn \u0111\u1ebfn c\u00e1c tr\u1ea1ng th\u00e1i h\u1ec7 th\u1ed1ng t\u1ed5ng th\u1ec3 kh\u00f4ng nh\u1ea5t qu\u00e1n.<\/p>\n

                      \n
                    • X\u00e1c minh r\u1eb1ng c\u00e1c s\u1ef1 ki\u1ec7n trong m\u1ed9t v\u00f9ng kh\u00f4ng v\u00f4 t\u00ecnh thay \u0111\u1ed5i c\u00e1c bi\u1ebfn \u0111\u01b0\u1ee3c v\u00f9ng kh\u00e1c s\u1eed d\u1ee5ng.<\/li>\n
                    • Ki\u1ec3m tra c\u00e1c \u0111i\u1ec3m \u0111\u1ed3ng b\u1ed9 h\u00f3a n\u01a1i c\u00e1c v\u00f9ng ph\u1ea3i \u0111\u1ed3ng b\u1ed9 v\u1edbi nhau.<\/li>\n
                    • \u0110\u1ea3m b\u1ea3o r\u1eb1ng tr\u1ea1ng th\u00e1i h\u1ec7 th\u1ed1ng l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p h\u1ee3p l\u1ec7 c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1ng th\u00e1i v\u00f9ng.<\/li>\n<\/ul>\n

                      2. C\u00e1c tr\u1ea1ng th\u00e1i l\u1ed3ng gh\u00e9p v\u00e0 k\u1ebf th\u1eeba<\/h3>\n

                      C\u00e1c tr\u1ea1ng th\u00e1i l\u1ed3ng gh\u00e9p k\u1ebf th\u1eeba h\u00e0nh vi t\u1eeb tr\u1ea1ng th\u00e1i cha. Tuy nhi\u00ean, s\u1ef1 k\u1ebf th\u1eeba n\u00e0y c\u00f3 th\u1ec3 che gi\u1ea5u c\u00e1c l\u1ed7i logic c\u1ee5 th\u1ec3.<\/p>\n

                        \n
                      • Tr\u1ea1ng th\u00e1i con c\u00f3 ghi \u0111\u00e8 h\u00e0nh \u0111\u1ed9ng tho\u00e1t c\u1ee7a tr\u1ea1ng th\u00e1i cha m\u1ed9t c\u00e1ch \u0111\u00fang \u0111\u1eafn kh\u00f4ng?<\/li>\n
                      • C\u00e1c s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u1edf c\u1ea5p \u0111\u1ed9 cha hay c\u1ea5p \u0111\u1ed9 con?<\/li>\n
                      • Khi tho\u00e1t kh\u1ecfi tr\u1ea1ng th\u00e1i con, h\u00e0nh \u0111\u1ed9ng tho\u00e1t c\u1ee7a tr\u1ea1ng th\u00e1i cha c\u00f3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t kh\u00f4ng?<\/li>\n<\/ul>\n

                        3. C\u00e1c tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed<\/h3>\n

                        C\u00e1c tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed cho ph\u00e9p m\u1ed9t tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p ghi nh\u1edb tr\u1ea1ng th\u00e1i con cu\u1ed1i c\u00f9ng c\u1ee7a n\u00f3. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng l\u00e0 ngu\u1ed3n g\u00e2y nh\u1ea7m l\u1eabn.<\/p>\n

                          \n
                        • L\u1ecbch s\u1eed s\u00e2u:<\/strong>Tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i con ho\u1ea1t \u0111\u1ed9ng s\u00e2u nh\u1ea5t.<\/li>\n
                        • L\u1ecbch s\u1eed n\u00f4ng:<\/strong>Tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i c\u00f9ng \u1edf c\u1ea5p \u0111\u1ed9 ngay l\u1eadp t\u1ee9c.<\/li>\n
                        • \u0110\u1ea3m b\u1ea3o token l\u1ecbch s\u1eed \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u00fang khi nh\u1eadp v\u00e0o.<\/li>\n
                        • G\u1ee1 l\u1ed7i c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed \u0111\u01b0\u1ee3c g\u1ecdi tr\u01b0\u1edbc khi tr\u1ea1ng th\u00e1i t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o ho\u00e0n to\u00e0n.<\/li>\n<\/ul>\n

                          \u2705 Danh s\u00e1ch ki\u1ec3m tra x\u00e1c th\u1ef1c<\/h2>\n

                          \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e1y tr\u1ea1ng th\u00e1i c\u1ee7a b\u1ea1n \u1ed5n \u0111\u1ecbnh, h\u00e3y th\u1ef1c hi\u1ec7n danh s\u00e1ch ki\u1ec3m tra x\u00e1c th\u1ef1c n\u00e0y. N\u00f3 bao g\u1ed3m c\u00e1c khu v\u1ef1c then ch\u1ed1t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong h\u01b0\u1edbng d\u1eabn n\u00e0y.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
                          Lo\u1ea1i<\/th>\nM\u1ee5c ki\u1ec3m tra<\/th>\n\u01afu ti\u00ean<\/th>\n<\/tr>\n<\/thead>\n
                          Topo<\/td>\nT\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1ng th\u00e1i c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u kh\u00f4ng?<\/td>\nCao<\/td>\n<\/tr>\n
                          \u0110\u1ed3 h\u00ecnh<\/td>\nC\u00f3 t\u1ed3n t\u1ea1i b\u1ea5t k\u1ef3 t\u00ecnh tr\u1ea1ng k\u1eb9t n\u00e0o (c\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng c\u00f3 l\u1ed1i tho\u00e1t) kh\u00f4ng?<\/td>\nCao<\/td>\n<\/tr>\n
                          L\u00f4gic<\/td>\nT\u1ea5t c\u1ea3 c\u00e1c s\u1ef1 ki\u1ec7n c\u00f3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd r\u00f5 r\u00e0ng ho\u1eb7c chuy\u1ec3n ti\u1ebfp m\u1eb7c \u0111\u1ecbnh kh\u00f4ng?<\/td>\nCao<\/td>\n<\/tr>\n
                          L\u00f4gic<\/td>\nC\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 c\u00f3 lo\u1ea1i tr\u1eeb l\u1eabn nhau khi c\u1ea7n thi\u1ebft kh\u00f4ng?<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n
                          \u0110\u1ed3ng th\u1eddi<\/td>\nC\u00e1c v\u00f9ng vu\u00f4ng g\u00f3c c\u00f3 chia s\u1ebb tr\u1ea1ng th\u00e1i thay \u0111\u1ed5i m\u1ed9t c\u00e1ch an to\u00e0n kh\u00f4ng?<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n
                          L\u1ecbch s\u1eed<\/td>\nTr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed c\u00f3 \u0111\u01b0\u1ee3c kh\u1edfi t\u1ea1o \u0111\u00fang khi l\u1ea7n \u0111\u1ea7u ti\u00ean v\u00e0o kh\u00f4ng?<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n
                          Ki\u1ec3m th\u1eed<\/td>\nM\u1ed7i chuy\u1ec3n ti\u1ebfp c\u00f3 \u0111\u01b0\u1ee3c th\u1ef1c thi trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p ki\u1ec3m th\u1eed kh\u00f4ng?<\/td>\nCao<\/td>\n<\/tr>\n
                          Ghi nh\u1eadt k\u00fd<\/td>\nVi\u1ec7c v\u00e0o\/ra tr\u1ea1ng th\u00e1i c\u00f3 \u0111\u01b0\u1ee3c ghi nh\u1eadt k\u00fd \u0111\u1ec3 h\u1ed7 tr\u1ee3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 kh\u00f4ng?<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          \ud83e\udde0 C\u00e1c t\u00ecnh hu\u1ed1ng ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n

                          D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c t\u00ecnh hu\u1ed1ng c\u1ee5 th\u1ec3 th\u01b0\u1eddng g\u1eb7p trong qu\u00e1 tr\u00ecnh g\u1ee1 l\u1ed7i v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb \u0111\u1ec3 kh\u1eafc ph\u1ee5c ch\u00fang.<\/p>\n

                          T\u00ecnh hu\u1ed1ng 1: H\u1ec7 th\u1ed1ng b\u1ecb \u0111\u00f3ng b\u0103ng<\/h3>\n

                          N\u1ebfu \u1ee9ng d\u1ee5ng ng\u1eebng ph\u1ea3n h\u1ed3i, m\u00e1y tr\u1ea1ng th\u00e1i c\u00f3 kh\u1ea3 n\u0103ng \u0111ang \u1edf tr\u1ea1ng th\u00e1i k\u1eb9t. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra khi m\u1ed9t s\u1ef1 ki\u1ec7n \u0111\u01b0\u1ee3c nh\u1eadn nh\u01b0ng kh\u00f4ng c\u00f3 chuy\u1ec3n ti\u1ebfp n\u00e0o kh\u1edbp v\u1edbi s\u1ef1 ki\u1ec7n trong tr\u1ea1ng th\u00e1i hi\u1ec7n t\u1ea1i.<\/p>\n

                            \n
                          • Ch\u1ea9n \u0111o\u00e1n:<\/strong> Ki\u1ec3m tra nh\u1eadt k\u00fd \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i cu\u1ed1i c\u00f9ng \u0111\u00e3 v\u00e0o.<\/li>\n
                          • Kh\u1eafc ph\u1ee5c:<\/strong> Th\u00eam m\u1ed9t chuy\u1ec3n ti\u1ebfp m\u1eb7c \u0111\u1ecbnh ho\u1eb7c m\u1ed9t b\u1ed9 x\u1eed l\u00fd bao qu\u00e1t cho tr\u1ea1ng th\u00e1i g\u00e2y v\u1ea5n \u0111\u1ec1.<\/li>\n
                          • Ph\u00f2ng ng\u1eeba:<\/strong>Th\u1ef1c thi m\u1ed9t quy t\u1eafc r\u1eb1ng m\u1ed7i tr\u1ea1ng th\u00e1i ph\u1ea3i c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u201celse\u201d r\u00f5 r\u00e0ng.<\/li>\n<\/ul>\n

                            T\u00ecnh hu\u1ed1ng 2: H\u1ec7 th\u1ed1ng nh\u1ea3y sang tr\u1ea1ng th\u00e1i<\/h3>\n

                            H\u1ec7 th\u1ed1ng d\u01b0\u1eddng nh\u01b0 b\u1ecf qua m\u1ed9t tr\u1ea1ng th\u00e1i ho\u1eb7c \u0111i v\u00e0o m\u1ed9t tr\u1ea1ng th\u00e1i m\u00e0 n\u00f3 kh\u00f4ng n\u00ean v\u00e0o. \u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng do c\u00e1c chuy\u1ec3n ti\u1ebfp th\u1eeba ho\u1eb7c logic b\u1ea3o v\u1ec7 sai.<\/p>\n

                              \n
                            • Ch\u1ea9n \u0111o\u00e1n:<\/strong>So s\u00e1nh tr\u00ecnh t\u1ef1 s\u1ef1 ki\u1ec7n th\u1ef1c t\u1ebf v\u1edbi s\u01a1 \u0111\u1ed3.<\/li>\n
                            • S\u1eeda l\u1ed7i:<\/strong>Si\u1ebft ch\u1eb7t \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7 ho\u1eb7c lo\u1ea1i b\u1ecf c\u00e1c chuy\u1ec3n ti\u1ebfp m\u01a1 h\u1ed3.<\/li>\n
                            • Ph\u00f2ng ng\u1eeba:<\/strong>S\u1eed d\u1ee5ng quy \u01b0\u1edbc \u0111\u1eb7t t\u00ean r\u00f5 r\u00e0ng cho c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u1ec3 tr\u00e1nh xung \u0111\u1ed9t.<\/li>\n<\/ul>\n

                              T\u00ecnh hu\u1ed1ng 3: Kh\u00f4i ph\u1ee5c tr\u1ea1ng th\u00e1i kh\u00f4ng nh\u1ea5t qu\u00e1n<\/h3>\n

                              Sau khi r\u1eddi kh\u1ecfi v\u00e0 quay l\u1ea1i m\u1ed9t tr\u1ea1ng th\u00e1i h\u1ee3p th\u00e0nh, h\u1ec7 th\u1ed1ng kh\u00f4ng nh\u1edb m\u00ecnh \u0111ang \u1edf \u0111\u00e2u. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y l\u1ed7i tri\u1ec3n khai tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed.<\/p>\n

                                \n
                              • Ch\u1ea9n \u0111o\u00e1n:<\/strong>Theo d\u00f5i h\u00e0nh tr\u00ecnh c\u1ee7a token l\u1ecbch s\u1eed.<\/li>\n
                              • S\u1eeda l\u1ed7i:<\/strong>X\u00e1c minh tr\u1ea1ng th\u00e1i l\u1ecbch s\u1eed tr\u1ecf \u0111\u1ebfn tr\u1ea1ng th\u00e1i con ho\u1ea1t \u0111\u1ed9ng cu\u1ed1i c\u00f9ng \u0111\u00fang.<\/li>\n
                              • Ph\u00f2ng ng\u1eeba:<\/strong>T\u00e0i li\u1ec7u r\u00f5 r\u00e0ng h\u00e0nh vi l\u1ecbch s\u1eed trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/li>\n<\/ul>\n

                                \ud83d\udd04 Tinh ch\u1ec9nh l\u1eb7p l\u1ea1i<\/h2>\n

                                Thi\u1ebft k\u1ebf m\u00e1y tr\u1ea1ng th\u00e1i hi\u1ebfm khi ho\u00e0n h\u1ea3o ngay l\u1ea7n \u0111\u1ea7u ti\u00ean. G\u1ee1 l\u1ed7i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf. Khi b\u1ea1n ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i, b\u1ea1n tinh ch\u1ec9nh s\u01a1 \u0111\u1ed3. Chu k\u1ef3 l\u1eb7p l\u1ea1i n\u00e0y \u0111\u1ea3m b\u1ea3o m\u00f4 h\u00ecnh cu\u1ed1i c\u00f9ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/p>\n

                                Khi b\u1ea1n ph\u00e1t hi\u1ec7n m\u1ed9t l\u1ed7i, \u0111\u1eebng ch\u1ec9 s\u1eeda m\u00e3 ngu\u1ed3n. C\u1eadp nh\u1eadt s\u01a1 \u0111\u1ed3. N\u1ebfu m\u00e3 ngu\u1ed3n kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3, s\u01a1 \u0111\u1ed3 l\u00e0 ngu\u1ed3n g\u1ed1c ch\u00e2n l\u00fd. S\u1ef1 \u0111\u1ed3ng b\u1ed9 n\u00e0y r\u1ea5t quan tr\u1ecdng cho kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec l\u00e2u d\u00e0i.<\/p>\n

                                \ud83d\udcdd T\u00f3m t\u1eaft c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/h2>\n
                                  \n
                                • Gi\u1eef \u0111\u01a1n gi\u1ea3n:<\/strong>Tr\u00e1nh c\u00e1c c\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p qu\u00e1 ph\u1ee9c t\u1ea1p l\u00e0m m\u1edd logic.<\/li>\n
                                • T\u00e0i li\u1ec7u c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea3o v\u1ec7:<\/strong>Gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao \u0111i\u1ec1u ki\u1ec7n chuy\u1ec3n ti\u1ebfp t\u1ed3n t\u1ea1i trong ph\u1ea7n ch\u00fa th\u00edch.<\/li>\n
                                • Ki\u1ec3m th\u1eed c\u00e1c tr\u01b0\u1eddng h\u1ee3p bi\u00ean:<\/strong>T\u1eadp trung v\u00e0o c\u00e1c bi\u00ean gi\u1edbi c\u1ee7a kh\u00f4ng gian tr\u1ea1ng th\u00e1i c\u1ee7a b\u1ea1n.<\/li>\n
                                • Tr\u1ef1c quan h\u00f3a c\u00e1c h\u00e0nh tr\u00ecnh:<\/strong>S\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 v\u1ebd \u0111\u1ec3 theo d\u00f5i c\u00e1c h\u00e0nh tr\u00ecnh th\u1ee7 c\u00f4ng tr\u01b0\u1edbc khi l\u1eadp tr\u00ecnh.<\/li>\n
                                • Theo d\u00f5i s\u1ea3n xu\u1ea5t:<\/strong>Thi\u1ebft l\u1eadp th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o cho c\u00e1c b\u1ea5t th\u01b0\u1eddng tr\u1ea1ng th\u00e1i trong m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf.<\/li>\n<\/ul>\n

                                  B\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c chi\u1ebfn l\u01b0\u1ee3c n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 r\u1ee7i ro do c\u00e1c l\u1ed7i logic \u1ea9n. M\u1ed9t m\u00e1y tr\u1ea1ng th\u00e1i \u0111\u01b0\u1ee3c g\u1ee1 l\u1ed7i t\u1ed1t l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u00e1ng tin c\u1eady cho h\u00e0nh vi h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p. N\u00f3 bi\u1ebfn s\u1ef1 h\u1ed7n lo\u1ea1n ti\u1ec1m t\u00e0ng th\u00e0nh qu\u00e1 tr\u00ecnh th\u1ef1c thi c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ki\u1ec3m so\u00e1t.<\/p>\n","protected":false},"excerpt":{"rendered":"

                                  Thi\u1ebft k\u1ebf m\u00e1y tr\u1ea1ng th\u00e1i l\u00e0 m\u1ed9t b\u00e0i t\u1eadp \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c. M\u1ed9t chuy\u1ec3n ti\u1ebfp b\u1ecb \u0111\u1eb7t sai hay m\u1ed9t s\u1ef1 ki\u1ec7n ch\u01b0a \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a c\u00f3 th\u1ec3…<\/p>\n","protected":false},"author":1,"featured_media":640,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"G\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: T\u00ecm ki\u1ebfm c\u00e1c l\u1ed7i logic \u1ea9n \ud83d\udd0d","_yoast_wpseo_metadesc":"H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c g\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i. Nh\u1eadn di\u1ec7n hi\u1ec7u qu\u1ea3 c\u00e1c deadlock, c\u00e1c tr\u1ea1ng th\u00e1i kh\u00f4ng th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00e0 c\u00e1c l\u1ed7i chuy\u1ec3n ti\u1ebfp trong m\u00f4 h\u00ecnh m\u00e1y tr\u1ea1ng th\u00e1i c\u1ee7a b\u1ea1n.","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[35],"tags":[40,41],"class_list":["post-639","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uml","tag-academic","tag-state-machine-diagram"],"yoast_head":"\nG\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i: T\u00ecm ki\u1ebfm c\u00e1c l\u1ed7i logic \u1ea9n \ud83d\udd0d<\/title>\n<meta name=\"description\" content=\"H\u1ecdc c\u00e1c chi\u1ebfn l\u01b0\u1ee3c g\u1ee1 l\u1ed7i s\u01a1 \u0111\u1ed3 tr\u1ea1ng th\u00e1i. 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