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}",[1570,1694,1695],{"class":1625},")",[1570,1697,1642],{"class":1632},[1570,1699,1701],{"class":1572,"line":1700},4,[1570,1702,1649],{"emptyLinePlaceholder":1648},[1570,1704,1706],{"class":1572,"line":1705},5,[1570,1707,1709],{"class":1708},"syuKq","// 内存数据，模拟数据库（重启后数据会还原）\n",[1570,1711,1713,1716,1719,1721],{"class":1572,"line":1712},6,[1570,1714,1715],{"class":1655},"let",[1570,1717,1718],{"class":1625}," users ",[1570,1720,1662],{"class":1632},[1570,1722,1723],{"class":1625}," [\n",[1570,1725,1727,1730,1733,1735,1739,1742,1745,1747,1749,1752,1754,1756,1759,1761,1764],{"class":1572,"line":1726},7,[1570,1728,1729],{"class":1632},"    {",[1570,1731,1732],{"class":1678}," id",[1570,1734,1682],{"class":1632},[1570,1736,1738],{"class":1737},"smPcV"," 1",[1570,1740,1741],{"class":1632},",",[1570,1743,1744],{"class":1678}," name",[1570,1746,1682],{"class":1632},[1570,1748,1633],{"class":1632},[1570,1750,1751],{"class":1580},"小明",[1570,1753,1639],{"class":1632},[1570,1755,1741],{"class":1632},[1570,1757,1758],{"class":1678}," age",[1570,1760,1682],{"class":1632},[1570,1762,1763],{"class":1737}," 18",[1570,1765,1766],{"class":1632}," },\n",[1570,1768,1770,1772,1774,1776,1779,1781,1783,1785,1787,1790,1792,1794,1796,1798,1801],{"class":1572,"line":1769},8,[1570,1771,1729],{"class":1632},[1570,1773,1732],{"class":1678},[1570,1775,1682],{"class":1632},[1570,1777,1778],{"class":1737}," 2",[1570,1780,1741],{"class":1632},[1570,1782,1744],{"class":1678},[1570,1784,1682],{"class":1632},[1570,1786,1633],{"class":1632},[1570,1788,1789],{"class":1580},"小红",[1570,1791,1639],{"class":1632},[1570,1793,1741],{"class":1632},[1570,1795,1758],{"class":1678},[1570,1797,1682],{"class":1632},[1570,1799,1800],{"class":1737}," 20",[1570,1802,1766],{"class":1632},[1570,1804,1806,1809],{"class":1572,"line":1805},9,[1570,1807,1808],{"class":1625},"]",[1570,1810,1642],{"class":1632},[1570,1812,1814,1816,1819,1821,1824],{"class":1572,"line":1813},10,[1570,1815,1715],{"class":1655},[1570,1817,1818],{"class":1625}," nextId ",[1570,1820,1662],{"class":1632},[1570,1822,1823],{"class":1737}," 3",[1570,1825,1642],{"class":1632},[1570,1827,1829],{"class":1572,"line":1828},11,[1570,1830,1649],{"emptyLinePlaceholder":1648},[1570,1832,1834],{"class":1572,"line":1833},12,[1570,1835,1836],{"class":1708},"// 获取用户列表：GET /users\n",[1570,1838,1840,1843,1846,1849,1851,1853,1856,1858,1860,1863,1866,1870,1872,1875],{"class":1572,"line":1839},13,[1570,1841,1842],{"class":1625},"router",[1570,1844,1845],{"class":1632},".",[1570,1847,1848],{"class":1668},"get",[1570,1850,1672],{"class":1625},[1570,1852,1639],{"class":1632},[1570,1854,1855],{"class":1580},"/",[1570,1857,1639],{"class":1632},[1570,1859,1741],{"class":1632},[1570,1861,1862],{"class":1655}," async",[1570,1864,1865],{"class":1632}," (",[1570,1867,1869],{"class":1868},"sK9QF","ctx",[1570,1871,1695],{"class":1632},[1570,1873,1874],{"class":1655}," =>",[1570,1876,1877],{"class":1632}," {\n",[1570,1879,1881,1884,1886,1889,1892,1895,1898,1900,1903,1905,1908,1910,1913],{"class":1572,"line":1880},14,[1570,1882,1883],{"class":1625},"    ctx",[1570,1885,1845],{"class":1632},[1570,1887,1888],{"class":1625},"body",[1570,1890,1891],{"class":1632}," =",[1570,1893,1894],{"class":1632}," {",[1570,1896,1897],{"class":1678}," code",[1570,1899,1682],{"class":1632},[1570,1901,1902],{"class":1737}," 200",[1570,1904,1741],{"class":1632},[1570,1906,1907],{"class":1678}," data",[1570,1909,1682],{"class":1632},[1570,1911,1912],{"class":1625}," users",[1570,1914,1915],{"class":1632}," };\n",[1570,1917,1919,1922,1924],{"class":1572,"line":1918},15,[1570,1920,1921],{"class":1632},"}",[1570,1923,1695],{"class":1625},[1570,1925,1642],{"class":1632},[1570,1927,1929],{"class":1572,"line":1928},16,[1570,1930,1649],{"emptyLinePlaceholder":1648},[1570,1932,1934],{"class":1572,"line":1933},17,[1570,1935,1936],{"class":1708},"// 获取用户详情：GET /users/1\n",[1570,1938,1940,1942,1944,1946,1948,1950,1953,1955,1957,1959,1961,1963,1965,1967],{"class":1572,"line":1939},18,[1570,1941,1842],{"class":1625},[1570,1943,1845],{"class":1632},[1570,1945,1848],{"class":1668},[1570,1947,1672],{"class":1625},[1570,1949,1639],{"class":1632},[1570,1951,1952],{"class":1580},"/:id",[1570,1954,1639],{"class":1632},[1570,1956,1741],{"class":1632},[1570,1958,1862],{"class":1655},[1570,1960,1865],{"class":1632},[1570,1962,1869],{"class":1868},[1570,1964,1695],{"class":1632},[1570,1966,1874],{"class":1655},[1570,1968,1877],{"class":1632},[1570,1970,1972,1975,1978,1980,1982,1984,1987,1989,1991,1994,1996,1998,2001,2003,2006,2009,2012,2014,2016,2018,2021,2023,2025,2028],{"class":1572,"line":1971},19,[1570,1973,1974],{"class":1655},"    const",[1570,1976,1977],{"class":1625}," user",[1570,1979,1891],{"class":1632},[1570,1981,1912],{"class":1625},[1570,1983,1845],{"class":1632},[1570,1985,1986],{"class":1668},"find",[1570,1988,1672],{"class":1678},[1570,1990,1672],{"class":1632},[1570,1992,1993],{"class":1868},"u",[1570,1995,1695],{"class":1632},[1570,1997,1874],{"class":1655},[1570,1999,2000],{"class":1625}," u",[1570,2002,1845],{"class":1632},[1570,2004,2005],{"class":1625},"id",[1570,2007,2008],{"class":1632}," ===",[1570,2010,2011],{"class":1668}," Number",[1570,2013,1672],{"class":1678},[1570,2015,1869],{"class":1625},[1570,2017,1845],{"class":1632},[1570,2019,2020],{"class":1625},"params",[1570,2022,1845],{"class":1632},[1570,2024,2005],{"class":1625},[1570,2026,2027],{"class":1678},"))",[1570,2029,1642],{"class":1632},[1570,2031,2033],{"class":1572,"line":2032},20,[1570,2034,1649],{"emptyLinePlaceholder":1648},[1570,2036,2038,2041,2043,2046,2049,2052],{"class":1572,"line":2037},21,[1570,2039,2040],{"class":1621},"    if",[1570,2042,1865],{"class":1678},[1570,2044,2045],{"class":1632},"!",[1570,2047,2048],{"class":1625},"user",[1570,2050,2051],{"class":1678},") ",[1570,2053,2054],{"class":1632},"{\n",[1570,2056,2058,2061,2063,2066,2068,2071,2073,2075,2078,2080,2082],{"class":1572,"line":2057},22,[1570,2059,2060],{"class":1625},"        ctx",[1570,2062,1845],{"class":1632},[1570,2064,2065],{"class":1668},"throw",[1570,2067,1672],{"class":1678},[1570,2069,2070],{"class":1737},"404",[1570,2072,1741],{"class":1632},[1570,2074,1633],{"class":1632},[1570,2076,2077],{"class":1580},"用户不存在",[1570,2079,1639],{"class":1632},[1570,2081,1695],{"class":1678},[1570,2083,1642],{"class":1632},[1570,2085,2087],{"class":1572,"line":2086},23,[1570,2088,2089],{"class":1632},"    }\n",[1570,2091,2093],{"class":1572,"line":2092},24,[1570,2094,1649],{"emptyLinePlaceholder":1648},[1570,2096,2098,2100,2102,2104,2106,2108,2110,2112,2114,2116,2118,2120,2122],{"class":1572,"line":2097},25,[1570,2099,1883],{"class":1625},[1570,2101,1845],{"class":1632},[1570,2103,1888],{"class":1625},[1570,2105,1891],{"class":1632},[1570,2107,1894],{"class":1632},[1570,2109,1897],{"class":1678},[1570,2111,1682],{"class":1632},[1570,2113,1902],{"class":1737},[1570,2115,1741],{"class":1632},[1570,2117,1907],{"class":1678},[1570,2119,1682],{"class":1632},[1570,2121,1977],{"class":1625},[1570,2123,1915],{"class":1632},[1570,2125,2127,2129,2131],{"class":1572,"line":2126},26,[1570,2128,1921],{"class":1632},[1570,2130,1695],{"class":1625},[1570,2132,1642],{"class":1632},[1570,2134,2136],{"class":1572,"line":2135},27,[1570,2137,1649],{"emptyLinePlaceholder":1648},[1570,2139,2141],{"class":1572,"line":2140},28,[1570,2142,2143],{"class":1708},"// 新增用户：POST /users\n",[1570,2145,2147,2149,2151,2154,2156,2158,2160,2162,2164,2166,2168,2170,2172,2174],{"class":1572,"line":2146},29,[1570,2148,1842],{"class":1625},[1570,2150,1845],{"class":1632},[1570,2152,2153],{"class":1668},"post",[1570,2155,1672],{"class":1625},[1570,2157,1639],{"class":1632},[1570,2159,1855],{"class":1580},[1570,2161,1639],{"class":1632},[1570,2163,1741],{"class":1632},[1570,2165,1862],{"class":1655},[1570,2167,1865],{"class":1632},[1570,2169,1869],{"class":1868},[1570,2171,1695],{"class":1632},[1570,2173,1874],{"class":1655},[1570,2175,1877],{"class":1632},[1570,2177,2179,2181,2183,2185,2187,2189,2191,2193,2196,2198,2201,2203,2205],{"class":1572,"line":2178},30,[1570,2180,1974],{"class":1655},[1570,2182,1894],{"class":1632},[1570,2184,1744],{"class":1625},[1570,2186,1741],{"class":1632},[1570,2188,1758],{"class":1625},[1570,2190,1692],{"class":1632},[1570,2192,1891],{"class":1632},[1570,2194,2195],{"class":1625}," ctx",[1570,2197,1845],{"class":1632},[1570,2199,2200],{"class":1625},"request",[1570,2202,1845],{"class":1632},[1570,2204,1888],{"class":1625},[1570,2206,1642],{"class":1632},[1570,2208,2210],{"class":1572,"line":2209},31,[1570,2211,1649],{"emptyLinePlaceholder":1648},[1570,2213,2215,2217,2219,2221,2224,2226],{"class":1572,"line":2214},32,[1570,2216,2040],{"class":1621},[1570,2218,1865],{"class":1678},[1570,2220,2045],{"class":1632},[1570,2222,2223],{"class":1625},"name",[1570,2225,2051],{"class":1678},[1570,2227,2054],{"class":1632},[1570,2229,2231,2233,2235,2237,2239,2242,2244,2246,2249,2251,2253],{"class":1572,"line":2230},33,[1570,2232,2060],{"class":1625},[1570,2234,1845],{"class":1632},[1570,2236,2065],{"class":1668},[1570,2238,1672],{"class":1678},[1570,2240,2241],{"class":1737},"400",[1570,2243,1741],{"class":1632},[1570,2245,1633],{"class":1632},[1570,2247,2248],{"class":1580},"name 不能为空",[1570,2250,1639],{"class":1632},[1570,2252,1695],{"class":1678},[1570,2254,1642],{"class":1632},[1570,2256,2258],{"class":1572,"line":2257},34,[1570,2259,2089],{"class":1632},[1570,2261,2263],{"class":1572,"line":2262},35,[1570,2264,1649],{"emptyLinePlaceholder":1648},[1570,2266,2268,2270,2272,2274,2276,2278,2280,2283,2286,2288,2290,2292],{"class":1572,"line":2267},36,[1570,2269,1974],{"class":1655},[1570,2271,1977],{"class":1625},[1570,2273,1891],{"class":1632},[1570,2275,1894],{"class":1632},[1570,2277,1732],{"class":1678},[1570,2279,1682],{"class":1632},[1570,2281,2282],{"class":1625}," nextId",[1570,2284,2285],{"class":1632},"++,",[1570,2287,1744],{"class":1625},[1570,2289,1741],{"class":1632},[1570,2291,1758],{"class":1625},[1570,2293,1915],{"class":1632},[1570,2295,2297,2300,2302,2305,2307,2309,2311],{"class":1572,"line":2296},37,[1570,2298,2299],{"class":1625},"    users",[1570,2301,1845],{"class":1632},[1570,2303,2304],{"class":1668},"push",[1570,2306,1672],{"class":1678},[1570,2308,2048],{"class":1625},[1570,2310,1695],{"class":1678},[1570,2312,1642],{"class":1632},[1570,2314,2316],{"class":1572,"line":2315},38,[1570,2317,1649],{"emptyLinePlaceholder":1648},[1570,2319,2321,2323,2325,2328,2330,2333,2336],{"class":1572,"line":2320},39,[1570,2322,1883],{"class":1625},[1570,2324,1845],{"class":1632},[1570,2326,2327],{"class":1625},"status",[1570,2329,1891],{"class":1632},[1570,2331,2332],{"class":1737}," 201",[1570,2334,2335],{"class":1632},";",[1570,2337,2338],{"class":1708}," // 创建成功\n",[1570,2340,2342,2344,2346,2348,2350,2352,2354,2356,2358,2360,2362,2364,2366],{"class":1572,"line":2341},40,[1570,2343,1883],{"class":1625},[1570,2345,1845],{"class":1632},[1570,2347,1888],{"class":1625},[1570,2349,1891],{"class":1632},[1570,2351,1894],{"class":1632},[1570,2353,1897],{"class":1678},[1570,2355,1682],{"class":1632},[1570,2357,2332],{"class":1737},[1570,2359,1741],{"class":1632},[1570,2361,1907],{"class":1678},[1570,2363,1682],{"class":1632},[1570,2365,1977],{"class":1625},[1570,2367,1915],{"class":1632},[1570,2369,2371,2373,2375],{"class":1572,"line":2370},41,[1570,2372,1921],{"class":1632},[1570,2374,1695],{"class":1625},[1570,2376,1642],{"class":1632},[1570,2378,2380],{"class":1572,"line":2379},42,[1570,2381,1649],{"emptyLinePlaceholder":1648},[1570,2383,2385],{"class":1572,"line":2384},43,[1570,2386,2387],{"class":1708},"// 更新用户：PUT /users/1\n",[1570,2389,2391,2393,2395,2398,2400,2402,2404,2406,2408,2410,2412,2414,2416,2418],{"class":1572,"line":2390},44,[1570,2392,1842],{"class":1625},[1570,2394,1845],{"class":1632},[1570,2396,2397],{"class":1668},"put",[1570,2399,1672],{"class":1625},[1570,2401,1639],{"class":1632},[1570,2403,1952],{"class":1580},[1570,2405,1639],{"class":1632},[1570,2407,1741],{"class":1632},[1570,2409,1862],{"class":1655},[1570,2411,1865],{"class":1632},[1570,2413,1869],{"class":1868},[1570,2415,1695],{"class":1632},[1570,2417,1874],{"class":1655},[1570,2419,1877],{"class":1632},[1570,2421,2423,2425,2427,2429,2431,2433,2435,2437,2439,2441,2443,2445,2447,2449,2451,2453,2455,2457,2459,2461,2463,2465,2467,2469],{"class":1572,"line":2422},45,[1570,2424,1974],{"class":1655},[1570,2426,1977],{"class":1625},[1570,2428,1891],{"class":1632},[1570,2430,1912],{"class":1625},[1570,2432,1845],{"class":1632},[1570,2434,1986],{"class":1668},[1570,2436,1672],{"class":1678},[1570,2438,1672],{"class":1632},[1570,2440,1993],{"class":1868},[1570,2442,1695],{"class":1632},[1570,2444,1874],{"class":1655},[1570,2446,2000],{"class":1625},[1570,2448,1845],{"class":1632},[1570,2450,2005],{"class":1625},[1570,2452,2008],{"class":1632},[1570,2454,2011],{"class":1668},[1570,2456,1672],{"class":1678},[1570,2458,1869],{"class":1625},[1570,2460,1845],{"class":1632},[1570,2462,2020],{"class":1625},[1570,2464,1845],{"class":1632},[1570,2466,2005],{"class":1625},[1570,2468,2027],{"class":1678},[1570,2470,1642],{"class":1632},[1570,2472,2474],{"class":1572,"line":2473},46,[1570,2475,1649],{"emptyLinePlaceholder":1648},[1570,2477,2479,2481,2483,2485,2487,2489],{"class":1572,"line":2478},47,[1570,2480,2040],{"class":1621},[1570,2482,1865],{"class":1678},[1570,2484,2045],{"class":1632},[1570,2486,2048],{"class":1625},[1570,2488,2051],{"class":1678},[1570,2490,2054],{"class":1632},[1570,2492,2494,2496,2498,2500,2502,2504,2506,2508,2510,2512,2514],{"class":1572,"line":2493},48,[1570,2495,2060],{"class":1625},[1570,2497,1845],{"class":1632},[1570,2499,2065],{"class":1668},[1570,2501,1672],{"class":1678},[1570,2503,2070],{"class":1737},[1570,2505,1741],{"class":1632},[1570,2507,1633],{"class":1632},[1570,2509,2077],{"class":1580},[1570,2511,1639],{"class":1632},[1570,2513,1695],{"class":1678},[1570,2515,1642],{"class":1632},[1570,2517,2519],{"class":1572,"line":2518},49,[1570,2520,2089],{"class":1632},[1570,2522,2524],{"class":1572,"line":2523},50,[1570,2525,1649],{"emptyLinePlaceholder":1648},[1570,2527,2529,2531,2533,2535,2537,2539,2541,2543,2545,2547,2549,2551,2553],{"class":1572,"line":2528},51,[1570,2530,1974],{"class":1655},[1570,2532,1894],{"class":1632},[1570,2534,1744],{"class":1625},[1570,2536,1741],{"class":1632},[1570,2538,1758],{"class":1625},[1570,2540,1692],{"class":1632},[1570,2542,1891],{"class":1632},[1570,2544,2195],{"class":1625},[1570,2546,1845],{"class":1632},[1570,2548,2200],{"class":1625},[1570,2550,1845],{"class":1632},[1570,2552,1888],{"class":1625},[1570,2554,1642],{"class":1632},[1570,2556,2558,2560,2562,2564,2567,2570,2572,2574,2576,2578,2580,2582],{"class":1572,"line":2557},52,[1570,2559,2040],{"class":1621},[1570,2561,1865],{"class":1678},[1570,2563,2223],{"class":1625},[1570,2565,2566],{"class":1632}," !==",[1570,2568,2569],{"class":1632}," undefined",[1570,2571,2051],{"class":1678},[1570,2573,2048],{"class":1625},[1570,2575,1845],{"class":1632},[1570,2577,2223],{"class":1625},[1570,2579,1891],{"class":1632},[1570,2581,1744],{"class":1625},[1570,2583,1642],{"class":1632},[1570,2585,2587,2589,2591,2594,2596,2598,2600,2602,2604,2606,2608,2610],{"class":1572,"line":2586},53,[1570,2588,2040],{"class":1621},[1570,2590,1865],{"class":1678},[1570,2592,2593],{"class":1625},"age",[1570,2595,2566],{"class":1632},[1570,2597,2569],{"class":1632},[1570,2599,2051],{"class":1678},[1570,2601,2048],{"class":1625},[1570,2603,1845],{"class":1632},[1570,2605,2593],{"class":1625},[1570,2607,1891],{"class":1632},[1570,2609,1758],{"class":1625},[1570,2611,1642],{"class":1632},[1570,2613,2615],{"class":1572,"line":2614},54,[1570,2616,1649],{"emptyLinePlaceholder":1648},[1570,2618,2620,2622,2624,2626,2628,2630,2632,2634,2636,2638,2640,2642,2644],{"class":1572,"line":2619},55,[1570,2621,1883],{"class":1625},[1570,2623,1845],{"class":1632},[1570,2625,1888],{"class":1625},[1570,2627,1891],{"class":1632},[1570,2629,1894],{"class":1632},[1570,2631,1897],{"class":1678},[1570,2633,1682],{"class":1632},[1570,2635,1902],{"class":1737},[1570,2637,1741],{"class":1632},[1570,2639,1907],{"class":1678},[1570,2641,1682],{"class":1632},[1570,2643,1977],{"class":1625},[1570,2645,1915],{"class":1632},[1570,2647,2649,2651,2653],{"class":1572,"line":2648},56,[1570,2650,1921],{"class":1632},[1570,2652,1695],{"class":1625},[1570,2654,1642],{"class":1632},[1570,2656,2658],{"class":1572,"line":2657},57,[1570,2659,1649],{"emptyLinePlaceholder":1648},[1570,2661,2663],{"class":1572,"line":2662},58,[1570,2664,2665],{"class":1708},"// 删除用户：DELETE /users/1\n",[1570,2667,2669,2671,2673,2676,2678,2680,2682,2684,2686,2688,2690,2692,2694,2696],{"class":1572,"line":2668},59,[1570,2670,1842],{"class":1625},[1570,2672,1845],{"class":1632},[1570,2674,2675],{"class":1668},"delete",[1570,2677,1672],{"class":1625},[1570,2679,1639],{"class":1632},[1570,2681,1952],{"class":1580},[1570,2683,1639],{"class":1632},[1570,2685,1741],{"class":1632},[1570,2687,1862],{"class":1655},[1570,2689,1865],{"class":1632},[1570,2691,1869],{"class":1868},[1570,2693,1695],{"class":1632},[1570,2695,1874],{"class":1655},[1570,2697,1877],{"class":1632},[1570,2699,2701,2703,2706,2708,2710,2712,2715,2717,2719,2721,2723,2725,2727,2729,2731,2733,2735,2737,2739,2741,2743,2745,2747,2749],{"class":1572,"line":2700},60,[1570,2702,1974],{"class":1655},[1570,2704,2705],{"class":1625}," index",[1570,2707,1891],{"class":1632},[1570,2709,1912],{"class":1625},[1570,2711,1845],{"class":1632},[1570,2713,2714],{"class":1668},"findIndex",[1570,2716,1672],{"class":1678},[1570,2718,1672],{"class":1632},[1570,2720,1993],{"class":1868},[1570,2722,1695],{"class":1632},[1570,2724,1874],{"class":1655},[1570,2726,2000],{"class":1625},[1570,2728,1845],{"class":1632},[1570,2730,2005],{"class":1625},[1570,2732,2008],{"class":1632},[1570,2734,2011],{"class":1668},[1570,2736,1672],{"class":1678},[1570,2738,1869],{"class":1625},[1570,2740,1845],{"class":1632},[1570,2742,2020],{"class":1625},[1570,2744,1845],{"class":1632},[1570,2746,2005],{"class":1625},[1570,2748,2027],{"class":1678},[1570,2750,1642],{"class":1632},[1570,2752,2754],{"class":1572,"line":2753},61,[1570,2755,1649],{"emptyLinePlaceholder":1648},[1570,2757,2759,2761,2763,2766,2768,2771,2774,2776],{"class":1572,"line":2758},62,[1570,2760,2040],{"class":1621},[1570,2762,1865],{"class":1678},[1570,2764,2765],{"class":1625},"index",[1570,2767,2008],{"class":1632},[1570,2769,2770],{"class":1632}," -",[1570,2772,2773],{"class":1737},"1",[1570,2775,2051],{"class":1678},[1570,2777,2054],{"class":1632},[1570,2779,2781,2783,2785,2787,2789,2791,2793,2795,2797,2799,2801],{"class":1572,"line":2780},63,[1570,2782,2060],{"class":1625},[1570,2784,1845],{"class":1632},[1570,2786,2065],{"class":1668},[1570,2788,1672],{"class":1678},[1570,2790,2070],{"class":1737},[1570,2792,1741],{"class":1632},[1570,2794,1633],{"class":1632},[1570,2796,2077],{"class":1580},[1570,2798,1639],{"class":1632},[1570,2800,1695],{"class":1678},[1570,2802,1642],{"class":1632},[1570,2804,2806],{"class":1572,"line":2805},64,[1570,2807,2089],{"class":1632},[1570,2809,2811],{"class":1572,"line":2810},65,[1570,2812,1649],{"emptyLinePlaceholder":1648},[1570,2814,2816,2818,2820,2823,2825,2827,2829,2831,2833],{"class":1572,"line":2815},66,[1570,2817,2299],{"class":1625},[1570,2819,1845],{"class":1632},[1570,2821,2822],{"class":1668},"splice",[1570,2824,1672],{"class":1678},[1570,2826,2765],{"class":1625},[1570,2828,1741],{"class":1632},[1570,2830,1738],{"class":1737},[1570,2832,1695],{"class":1678},[1570,2834,1642],{"class":1632},[1570,2836,2838,2840,2842,2844,2846,2848,2850,2852,2854,2856,2859,2861,2863,2866,2868],{"class":1572,"line":2837},67,[1570,2839,1883],{"class":1625},[1570,2841,1845],{"class":1632},[1570,2843,1888],{"class":1625},[1570,2845,1891],{"class":1632},[1570,2847,1894],{"class":1632},[1570,2849,1897],{"class":1678},[1570,2851,1682],{"class":1632},[1570,2853,1902],{"class":1737},[1570,2855,1741],{"class":1632},[1570,2857,2858],{"class":1678}," message",[1570,2860,1682],{"class":1632},[1570,2862,1633],{"class":1632},[1570,2864,2865],{"class":1580},"删除成功",[1570,2867,1639],{"class":1632},[1570,2869,1915],{"class":1632},[1570,2871,2873,2875,2877],{"class":1572,"line":2872},68,[1570,2874,1921],{"class":1632},[1570,2876,1695],{"class":1625},[1570,2878,1642],{"class":1632},[1570,2880,2882],{"class":1572,"line":2881},69,[1570,2883,1649],{"emptyLinePlaceholder":1648},[1570,2885,2887,2890,2893,2896],{"class":1572,"line":2886},70,[1570,2888,2889],{"class":1621},"export",[1570,2891,2892],{"class":1621}," default",[1570,2894,2895],{"class":1625}," router",[1570,2897,1642],{"class":1632},[1530,2899,2900],{},"几个设计要点：",[2902,2903,2904,2911,2921],"ul",{},[2905,2906,2907,2910],"li",{},[1558,2908,2909],{},"状态码语义化","：创建成功返回 201，找不到资源返回 404，参数错误返回 400，客户端一看状态码就知道发生了什么。",[2905,2912,2913,2916,2917,2920],{},[1558,2914,2915],{},"就地更新","：PUT 接口用 ",[1552,2918,2919],{},"!== undefined"," 判断，只更新前端传了的字段，没传的保持原值。",[2905,2922,2923,2926],{},[1558,2924,2925],{},"错误统一交给 ctx.throw","：路由里不做响应格式处理，专注业务逻辑。",[1534,2928],{},[1525,2930,2932],{"id":2931},"入口文件组装中间件","🧰 入口文件：组装中间件",[1544,2934,2937],{"className":1611,"code":2935,"filename":2936,"language":1614,"meta":1550,"style":1550},"import Koa from 'koa';\nimport bodyParser from 'koa-bodyparser';\nimport cors from '@koa/cors';\nimport usersRouter from './routes/users.js';\n\nconst app = new Koa();\n\n// 1. 统一错误处理\napp.use(async (ctx, next) => {\n    try {\n        await next();\n    } catch (err) {\n        ctx.status = err.status || 500;\n        ctx.body = { code: ctx.status, message: err.message || '服务器开小差了' };\n        console.error('接口错误：', err);\n    }\n});\n\n// 2. 跨域与请求体解析\napp.use(cors());\napp.use(bodyParser());\n\n// 3. 业务路由\napp.use(usersRouter.routes());\napp.use(usersRouter.allowedMethods());\n\n// 4. 404 兜底\napp.use(async (ctx) => {\n    ctx.status = 404;\n    ctx.body = { code: 404, message: '接口不存在' };\n});\n\napp.listen(3000, () => {\n    console.log('服务器已启动：http://localhost:3000');\n});\n","app.js",[1552,2938,2939,2957,2975,2992,3010,3014,3033,3037,3042,3072,3079,3090,3107,3132,3178,3205,3209,3217,3221,3226,3244,3261,3265,3270,3290,3309,3313,3318,3340,3355,3388,3396,3400,3423,3446],{"__ignoreMap":1550},[1570,2940,2941,2943,2946,2948,2950,2953,2955],{"class":1572,"line":1573},[1570,2942,1622],{"class":1621},[1570,2944,2945],{"class":1625}," Koa ",[1570,2947,1629],{"class":1621},[1570,2949,1633],{"class":1632},[1570,2951,2952],{"class":1580},"koa",[1570,2954,1639],{"class":1632},[1570,2956,1642],{"class":1632},[1570,2958,2959,2961,2964,2966,2968,2971,2973],{"class":1572,"line":1645},[1570,2960,1622],{"class":1621},[1570,2962,2963],{"class":1625}," bodyParser ",[1570,2965,1629],{"class":1621},[1570,2967,1633],{"class":1632},[1570,2969,2970],{"class":1580},"koa-bodyparser",[1570,2972,1639],{"class":1632},[1570,2974,1642],{"class":1632},[1570,2976,2977,2979,2982,2984,2986,2988,2990],{"class":1572,"line":1652},[1570,2978,1622],{"class":1621},[1570,2980,2981],{"class":1625}," cors ",[1570,2983,1629],{"class":1621},[1570,2985,1633],{"class":1632},[1570,2987,1598],{"class":1580},[1570,2989,1639],{"class":1632},[1570,2991,1642],{"class":1632},[1570,2993,2994,2996,2999,3001,3003,3006,3008],{"class":1572,"line":1700},[1570,2995,1622],{"class":1621},[1570,2997,2998],{"class":1625}," usersRouter ",[1570,3000,1629],{"class":1621},[1570,3002,1633],{"class":1632},[1570,3004,3005],{"class":1580},"./routes/users.js",[1570,3007,1639],{"class":1632},[1570,3009,1642],{"class":1632},[1570,3011,3012],{"class":1572,"line":1705},[1570,3013,1649],{"emptyLinePlaceholder":1648},[1570,3015,3016,3018,3021,3023,3025,3028,3031],{"class":1572,"line":1712},[1570,3017,1656],{"class":1655},[1570,3019,3020],{"class":1625}," app ",[1570,3022,1662],{"class":1632},[1570,3024,1665],{"class":1632},[1570,3026,3027],{"class":1668}," Koa",[1570,3029,3030],{"class":1625},"()",[1570,3032,1642],{"class":1632},[1570,3034,3035],{"class":1572,"line":1726},[1570,3036,1649],{"emptyLinePlaceholder":1648},[1570,3038,3039],{"class":1572,"line":1769},[1570,3040,3041],{"class":1708},"// 1. 统一错误处理\n",[1570,3043,3044,3047,3049,3052,3054,3057,3059,3061,3063,3066,3068,3070],{"class":1572,"line":1805},[1570,3045,3046],{"class":1625},"app",[1570,3048,1845],{"class":1632},[1570,3050,3051],{"class":1668},"use",[1570,3053,1672],{"class":1625},[1570,3055,3056],{"class":1655},"async",[1570,3058,1865],{"class":1632},[1570,3060,1869],{"class":1868},[1570,3062,1741],{"class":1632},[1570,3064,3065],{"class":1868}," next",[1570,3067,1695],{"class":1632},[1570,3069,1874],{"class":1655},[1570,3071,1877],{"class":1632},[1570,3073,3074,3077],{"class":1572,"line":1813},[1570,3075,3076],{"class":1621},"    try",[1570,3078,1877],{"class":1632},[1570,3080,3081,3084,3086,3088],{"class":1572,"line":1828},[1570,3082,3083],{"class":1621},"        await",[1570,3085,3065],{"class":1668},[1570,3087,3030],{"class":1678},[1570,3089,1642],{"class":1632},[1570,3091,3092,3095,3098,3100,3103,3105],{"class":1572,"line":1833},[1570,3093,3094],{"class":1632},"    }",[1570,3096,3097],{"class":1621}," catch",[1570,3099,1865],{"class":1678},[1570,3101,3102],{"class":1625},"err",[1570,3104,2051],{"class":1678},[1570,3106,2054],{"class":1632},[1570,3108,3109,3111,3113,3115,3117,3120,3122,3124,3127,3130],{"class":1572,"line":1839},[1570,3110,2060],{"class":1625},[1570,3112,1845],{"class":1632},[1570,3114,2327],{"class":1625},[1570,3116,1891],{"class":1632},[1570,3118,3119],{"class":1625}," err",[1570,3121,1845],{"class":1632},[1570,3123,2327],{"class":1625},[1570,3125,3126],{"class":1632}," ||",[1570,3128,3129],{"class":1737}," 500",[1570,3131,1642],{"class":1632},[1570,3133,3134,3136,3138,3140,3142,3144,3146,3148,3150,3152,3154,3156,3158,3160,3162,3164,3167,3169,3171,3174,3176],{"class":1572,"line":1880},[1570,3135,2060],{"class":1625},[1570,3137,1845],{"class":1632},[1570,3139,1888],{"class":1625},[1570,3141,1891],{"class":1632},[1570,3143,1894],{"class":1632},[1570,3145,1897],{"class":1678},[1570,3147,1682],{"class":1632},[1570,3149,2195],{"class":1625},[1570,3151,1845],{"class":1632},[1570,3153,2327],{"class":1625},[1570,3155,1741],{"class":1632},[1570,3157,2858],{"class":1678},[1570,3159,1682],{"class":1632},[1570,3161,3119],{"class":1625},[1570,3163,1845],{"class":1632},[1570,3165,3166],{"class":1625},"message",[1570,3168,3126],{"class":1632},[1570,3170,1633],{"class":1632},[1570,3172,3173],{"class":1580},"服务器开小差了",[1570,3175,1639],{"class":1632},[1570,3177,1915],{"class":1632},[1570,3179,3180,3183,3185,3188,3190,3192,3195,3197,3199,3201,3203],{"class":1572,"line":1918},[1570,3181,3182],{"class":1625},"        console",[1570,3184,1845],{"class":1632},[1570,3186,3187],{"class":1668},"error",[1570,3189,1672],{"class":1678},[1570,3191,1639],{"class":1632},[1570,3193,3194],{"class":1580},"接口错误：",[1570,3196,1639],{"class":1632},[1570,3198,1741],{"class":1632},[1570,3200,3119],{"class":1625},[1570,3202,1695],{"class":1678},[1570,3204,1642],{"class":1632},[1570,3206,3207],{"class":1572,"line":1928},[1570,3208,2089],{"class":1632},[1570,3210,3211,3213,3215],{"class":1572,"line":1933},[1570,3212,1921],{"class":1632},[1570,3214,1695],{"class":1625},[1570,3216,1642],{"class":1632},[1570,3218,3219],{"class":1572,"line":1939},[1570,3220,1649],{"emptyLinePlaceholder":1648},[1570,3222,3223],{"class":1572,"line":1971},[1570,3224,3225],{"class":1708},"// 2. 跨域与请求体解析\n",[1570,3227,3228,3230,3232,3234,3236,3239,3242],{"class":1572,"line":2032},[1570,3229,3046],{"class":1625},[1570,3231,1845],{"class":1632},[1570,3233,3051],{"class":1668},[1570,3235,1672],{"class":1625},[1570,3237,3238],{"class":1668},"cors",[1570,3240,3241],{"class":1625},"())",[1570,3243,1642],{"class":1632},[1570,3245,3246,3248,3250,3252,3254,3257,3259],{"class":1572,"line":2037},[1570,3247,3046],{"class":1625},[1570,3249,1845],{"class":1632},[1570,3251,3051],{"class":1668},[1570,3253,1672],{"class":1625},[1570,3255,3256],{"class":1668},"bodyParser",[1570,3258,3241],{"class":1625},[1570,3260,1642],{"class":1632},[1570,3262,3263],{"class":1572,"line":2057},[1570,3264,1649],{"emptyLinePlaceholder":1648},[1570,3266,3267],{"class":1572,"line":2086},[1570,3268,3269],{"class":1708},"// 3. 业务路由\n",[1570,3271,3272,3274,3276,3278,3281,3283,3286,3288],{"class":1572,"line":2092},[1570,3273,3046],{"class":1625},[1570,3275,1845],{"class":1632},[1570,3277,3051],{"class":1668},[1570,3279,3280],{"class":1625},"(usersRouter",[1570,3282,1845],{"class":1632},[1570,3284,3285],{"class":1668},"routes",[1570,3287,3241],{"class":1625},[1570,3289,1642],{"class":1632},[1570,3291,3292,3294,3296,3298,3300,3302,3305,3307],{"class":1572,"line":2097},[1570,3293,3046],{"class":1625},[1570,3295,1845],{"class":1632},[1570,3297,3051],{"class":1668},[1570,3299,3280],{"class":1625},[1570,3301,1845],{"class":1632},[1570,3303,3304],{"class":1668},"allowedMethods",[1570,3306,3241],{"class":1625},[1570,3308,1642],{"class":1632},[1570,3310,3311],{"class":1572,"line":2126},[1570,3312,1649],{"emptyLinePlaceholder":1648},[1570,3314,3315],{"class":1572,"line":2135},[1570,3316,3317],{"class":1708},"// 4. 404 兜底\n",[1570,3319,3320,3322,3324,3326,3328,3330,3332,3334,3336,3338],{"class":1572,"line":2140},[1570,3321,3046],{"class":1625},[1570,3323,1845],{"class":1632},[1570,3325,3051],{"class":1668},[1570,3327,1672],{"class":1625},[1570,3329,3056],{"class":1655},[1570,3331,1865],{"class":1632},[1570,3333,1869],{"class":1868},[1570,3335,1695],{"class":1632},[1570,3337,1874],{"class":1655},[1570,3339,1877],{"class":1632},[1570,3341,3342,3344,3346,3348,3350,3353],{"class":1572,"line":2146},[1570,3343,1883],{"class":1625},[1570,3345,1845],{"class":1632},[1570,3347,2327],{"class":1625},[1570,3349,1891],{"class":1632},[1570,3351,3352],{"class":1737}," 404",[1570,3354,1642],{"class":1632},[1570,3356,3357,3359,3361,3363,3365,3367,3369,3371,3373,3375,3377,3379,3381,3384,3386],{"class":1572,"line":2178},[1570,3358,1883],{"class":1625},[1570,3360,1845],{"class":1632},[1570,3362,1888],{"class":1625},[1570,3364,1891],{"class":1632},[1570,3366,1894],{"class":1632},[1570,3368,1897],{"class":1678},[1570,3370,1682],{"class":1632},[1570,3372,3352],{"class":1737},[1570,3374,1741],{"class":1632},[1570,3376,2858],{"class":1678},[1570,3378,1682],{"class":1632},[1570,3380,1633],{"class":1632},[1570,3382,3383],{"class":1580},"接口不存在",[1570,3385,1639],{"class":1632},[1570,3387,1915],{"class":1632},[1570,3389,3390,3392,3394],{"class":1572,"line":2209},[1570,3391,1921],{"class":1632},[1570,3393,1695],{"class":1625},[1570,3395,1642],{"class":1632},[1570,3397,3398],{"class":1572,"line":2214},[1570,3399,1649],{"emptyLinePlaceholder":1648},[1570,3401,3402,3404,3406,3409,3411,3414,3416,3419,3421],{"class":1572,"line":2230},[1570,3403,3046],{"class":1625},[1570,3405,1845],{"class":1632},[1570,3407,3408],{"class":1668},"listen",[1570,3410,1672],{"class":1625},[1570,3412,3413],{"class":1737},"3000",[1570,3415,1741],{"class":1632},[1570,3417,3418],{"class":1632}," ()",[1570,3420,1874],{"class":1655},[1570,3422,1877],{"class":1632},[1570,3424,3425,3428,3430,3433,3435,3437,3440,3442,3444],{"class":1572,"line":2257},[1570,3426,3427],{"class":1625},"    console",[1570,3429,1845],{"class":1632},[1570,3431,3432],{"class":1668},"log",[1570,3434,1672],{"class":1678},[1570,3436,1639],{"class":1632},[1570,3438,3439],{"class":1580},"服务器已启动：http://localhost:3000",[1570,3441,1639],{"class":1632},[1570,3443,1695],{"class":1678},[1570,3445,1642],{"class":1632},[1570,3447,3448,3450,3452],{"class":1572,"line":2262},[1570,3449,1921],{"class":1632},[1570,3451,1695],{"class":1625},[1570,3453,1642],{"class":1632},[1530,3455,3456],{},"中间件的顺序沿用上篇总结的口诀：错误处理 → 通用中间件（跨域、body 解析） → 路由 → 404 兜底。这个骨架可以直接当作你以后 Koa 项目的起步模板。",[1534,3458],{},[1525,3460,3462],{"id":3461},"前端调用示例","💡 前端调用示例",[1530,3464,3465],{},"接口写好了，前端用 fetch 调用一遍。假设页面跑在 Vite 项目的 5173 端口：",[1544,3467,3469],{"className":1611,"code":3468,"language":1614,"meta":1550,"style":1550},"// 获取用户列表\nconst res = await fetch('http://localhost:3000/users');\nconst result = await res.json();\nconsole.log(result.data); // 用户数组\n\n// 新增用户\nawait fetch('http://localhost:3000/users', {\n    method: 'POST',\n    headers: { 'Content-Type': 'application/json' },\n    body: JSON.stringify({ name: '小华', age: 22 }),\n});\n\n// 更新 id 为 1 的用户\nawait fetch('http://localhost:3000/users/1', {\n    method: 'PUT',\n    headers: { 'Content-Type': 'application/json' },\n    body: JSON.stringify({ age: 19 }),\n});\n\n// 删除 id 为 2 的用户\nawait fetch('http://localhost:3000/users/2', {\n    method: 'DELETE',\n});\n",[1552,3470,3471,3476,3504,3527,3549,3553,3558,3577,3594,3621,3666,3674,3678,3683,3702,3717,3741,3770,3778,3782,3787,3806,3821],{"__ignoreMap":1550},[1570,3472,3473],{"class":1572,"line":1573},[1570,3474,3475],{"class":1708},"// 获取用户列表\n",[1570,3477,3478,3480,3483,3485,3488,3491,3493,3495,3498,3500,3502],{"class":1572,"line":1645},[1570,3479,1656],{"class":1655},[1570,3481,3482],{"class":1625}," res ",[1570,3484,1662],{"class":1632},[1570,3486,3487],{"class":1621}," await",[1570,3489,3490],{"class":1668}," fetch",[1570,3492,1672],{"class":1625},[1570,3494,1639],{"class":1632},[1570,3496,3497],{"class":1580},"http://localhost:3000/users",[1570,3499,1639],{"class":1632},[1570,3501,1695],{"class":1625},[1570,3503,1642],{"class":1632},[1570,3505,3506,3508,3511,3513,3515,3518,3520,3523,3525],{"class":1572,"line":1652},[1570,3507,1656],{"class":1655},[1570,3509,3510],{"class":1625}," result ",[1570,3512,1662],{"class":1632},[1570,3514,3487],{"class":1621},[1570,3516,3517],{"class":1625}," res",[1570,3519,1845],{"class":1632},[1570,3521,3522],{"class":1668},"json",[1570,3524,3030],{"class":1625},[1570,3526,1642],{"class":1632},[1570,3528,3529,3532,3534,3536,3539,3541,3544,3546],{"class":1572,"line":1700},[1570,3530,3531],{"class":1625},"console",[1570,3533,1845],{"class":1632},[1570,3535,3432],{"class":1668},[1570,3537,3538],{"class":1625},"(result",[1570,3540,1845],{"class":1632},[1570,3542,3543],{"class":1625},"data)",[1570,3545,2335],{"class":1632},[1570,3547,3548],{"class":1708}," // 用户数组\n",[1570,3550,3551],{"class":1572,"line":1705},[1570,3552,1649],{"emptyLinePlaceholder":1648},[1570,3554,3555],{"class":1572,"line":1712},[1570,3556,3557],{"class":1708},"// 新增用户\n",[1570,3559,3560,3563,3565,3567,3569,3571,3573,3575],{"class":1572,"line":1726},[1570,3561,3562],{"class":1621},"await",[1570,3564,3490],{"class":1668},[1570,3566,1672],{"class":1625},[1570,3568,1639],{"class":1632},[1570,3570,3497],{"class":1580},[1570,3572,1639],{"class":1632},[1570,3574,1741],{"class":1632},[1570,3576,1877],{"class":1632},[1570,3578,3579,3582,3584,3586,3589,3591],{"class":1572,"line":1769},[1570,3580,3581],{"class":1678},"    method",[1570,3583,1682],{"class":1632},[1570,3585,1633],{"class":1632},[1570,3587,3588],{"class":1580},"POST",[1570,3590,1639],{"class":1632},[1570,3592,3593],{"class":1632},",\n",[1570,3595,3596,3599,3601,3603,3605,3608,3610,3612,3614,3617,3619],{"class":1572,"line":1805},[1570,3597,3598],{"class":1678},"    headers",[1570,3600,1682],{"class":1632},[1570,3602,1894],{"class":1632},[1570,3604,1633],{"class":1632},[1570,3606,3607],{"class":1678},"Content-Type",[1570,3609,1639],{"class":1632},[1570,3611,1682],{"class":1632},[1570,3613,1633],{"class":1632},[1570,3615,3616],{"class":1580},"application/json",[1570,3618,1639],{"class":1632},[1570,3620,1766],{"class":1632},[1570,3622,3623,3626,3628,3631,3633,3636,3638,3640,3642,3644,3646,3649,3651,3653,3655,3657,3660,3662,3664],{"class":1572,"line":1813},[1570,3624,3625],{"class":1678},"    body",[1570,3627,1682],{"class":1632},[1570,3629,3630],{"class":1625}," JSON",[1570,3632,1845],{"class":1632},[1570,3634,3635],{"class":1668},"stringify",[1570,3637,1672],{"class":1625},[1570,3639,1675],{"class":1632},[1570,3641,1744],{"class":1678},[1570,3643,1682],{"class":1632},[1570,3645,1633],{"class":1632},[1570,3647,3648],{"class":1580},"小华",[1570,3650,1639],{"class":1632},[1570,3652,1741],{"class":1632},[1570,3654,1758],{"class":1678},[1570,3656,1682],{"class":1632},[1570,3658,3659],{"class":1737}," 22",[1570,3661,1692],{"class":1632},[1570,3663,1695],{"class":1625},[1570,3665,3593],{"class":1632},[1570,3667,3668,3670,3672],{"class":1572,"line":1828},[1570,3669,1921],{"class":1632},[1570,3671,1695],{"class":1625},[1570,3673,1642],{"class":1632},[1570,3675,3676],{"class":1572,"line":1833},[1570,3677,1649],{"emptyLinePlaceholder":1648},[1570,3679,3680],{"class":1572,"line":1839},[1570,3681,3682],{"class":1708},"// 更新 id 为 1 的用户\n",[1570,3684,3685,3687,3689,3691,3693,3696,3698,3700],{"class":1572,"line":1880},[1570,3686,3562],{"class":1621},[1570,3688,3490],{"class":1668},[1570,3690,1672],{"class":1625},[1570,3692,1639],{"class":1632},[1570,3694,3695],{"class":1580},"http://localhost:3000/users/1",[1570,3697,1639],{"class":1632},[1570,3699,1741],{"class":1632},[1570,3701,1877],{"class":1632},[1570,3703,3704,3706,3708,3710,3713,3715],{"class":1572,"line":1918},[1570,3705,3581],{"class":1678},[1570,3707,1682],{"class":1632},[1570,3709,1633],{"class":1632},[1570,3711,3712],{"class":1580},"PUT",[1570,3714,1639],{"class":1632},[1570,3716,3593],{"class":1632},[1570,3718,3719,3721,3723,3725,3727,3729,3731,3733,3735,3737,3739],{"class":1572,"line":1928},[1570,3720,3598],{"class":1678},[1570,3722,1682],{"class":1632},[1570,3724,1894],{"class":1632},[1570,3726,1633],{"class":1632},[1570,3728,3607],{"class":1678},[1570,3730,1639],{"class":1632},[1570,3732,1682],{"class":1632},[1570,3734,1633],{"class":1632},[1570,3736,3616],{"class":1580},[1570,3738,1639],{"class":1632},[1570,3740,1766],{"class":1632},[1570,3742,3743,3745,3747,3749,3751,3753,3755,3757,3759,3761,3764,3766,3768],{"class":1572,"line":1933},[1570,3744,3625],{"class":1678},[1570,3746,1682],{"class":1632},[1570,3748,3630],{"class":1625},[1570,3750,1845],{"class":1632},[1570,3752,3635],{"class":1668},[1570,3754,1672],{"class":1625},[1570,3756,1675],{"class":1632},[1570,3758,1758],{"class":1678},[1570,3760,1682],{"class":1632},[1570,3762,3763],{"class":1737}," 19",[1570,3765,1692],{"class":1632},[1570,3767,1695],{"class":1625},[1570,3769,3593],{"class":1632},[1570,3771,3772,3774,3776],{"class":1572,"line":1939},[1570,3773,1921],{"class":1632},[1570,3775,1695],{"class":1625},[1570,3777,1642],{"class":1632},[1570,3779,3780],{"class":1572,"line":1971},[1570,3781,1649],{"emptyLinePlaceholder":1648},[1570,3783,3784],{"class":1572,"line":2032},[1570,3785,3786],{"class":1708},"// 删除 id 为 2 的用户\n",[1570,3788,3789,3791,3793,3795,3797,3800,3802,3804],{"class":1572,"line":2037},[1570,3790,3562],{"class":1621},[1570,3792,3490],{"class":1668},[1570,3794,1672],{"class":1625},[1570,3796,1639],{"class":1632},[1570,3798,3799],{"class":1580},"http://localhost:3000/users/2",[1570,3801,1639],{"class":1632},[1570,3803,1741],{"class":1632},[1570,3805,1877],{"class":1632},[1570,3807,3808,3810,3812,3814,3817,3819],{"class":1572,"line":2057},[1570,3809,3581],{"class":1678},[1570,3811,1682],{"class":1632},[1570,3813,1633],{"class":1632},[1570,3815,3816],{"class":1580},"DELETE",[1570,3818,1639],{"class":1632},[1570,3820,3593],{"class":1632},[1570,3822,3823,3825,3827],{"class":1572,"line":2086},[1570,3824,1921],{"class":1632},[1570,3826,1695],{"class":1625},[1570,3828,1642],{"class":1632},[1530,3830,3831,3832,3834,3835,3838],{},"如果忘了注册 ",[1552,3833,1598],{},"，浏览器控制台会报经典的 CORS 错误（",[1552,3836,3837],{},"Access-Control-Allow-Origin"," 相关字样），这是前后端分离开发的第一道坎，现在你知道怎么跨过去了。",[1534,3840],{},[1525,3842,3844],{"id":3843},"小节总结","🧾 小节总结",[2902,3846,3847,3850,3853,3860,3865],{},[2905,3848,3849],{},"用内存数组模拟数据库，一个路由文件就能实现完整的增删改查：GET 列表/详情、POST 新增、PUT 更新、DELETE 删除。",[2905,3851,3852],{},"状态码要语义化：200 成功、201 创建成功、400 参数错误、404 资源不存在。",[2905,3854,3855,3856,3859],{},"路由里用 ",[1552,3857,3858],{},"ctx.throw"," 抛错误，响应格式由统一错误中间件处理，业务代码更干净。",[2905,3861,3862,3864],{},[1552,3863,1598],{}," 一行注册解决跨域，前后端分离项目必备。",[2905,3866,3867],{},"入口文件按“错误处理 → 通用中间件 → 路由 → 404 兜底”的顺序组装，可直接作为项目模板。",[1534,3869],{},[1525,3871,3873],{"id":3872},"知识问答","❓ 知识问答",[1530,3875,3876],{},[1558,3877,3878],{},"Q1：内存数组的数据重启就丢了，正式项目怎么办？",[1530,3880,3881],{},"正式项目会把数据存到数据库（如 MySQL、MongoDB）。这里用内存数组是为了聚焦 Koa 本身的写法，学会后只需把数组操作替换成数据库查询，接口结构完全不变。",[1530,3883,3884],{},[1558,3885,3886],{},"Q2：PUT 和 PATCH 有什么区别？",[1530,3888,3889],{},"PUT 是整体替换资源的语义，PATCH 是部分更新。实际项目里界限没那么严格，我们的示例用 PUT 实现了“只更新传入字段”的效果，这是常见的实用做法。",[1530,3891,3892],{},[1558,3893,3894],{},"Q3：为什么没有处理鉴权（登录校验）？",[1530,3896,3897],{},"鉴权通常用 JWT 等方案实现，会作为独立的中间件加在路由之前。它属于进阶内容，先把本文的基础骨架吃透，加鉴权只是“多写一个中间件”的事。",[1530,3899,3900],{},[1558,3901,3902],{},"Q4：多个路由文件怎么注册？",[1530,3904,3905,3906,3908,3909,3912,3913,3916],{},"和单个一样，每个模块导出 router，在 ",[1552,3907,2936],{}," 里逐个 ",[1552,3910,3911],{},"app.use(xxxRouter.routes())"," 和 ",[1552,3914,3915],{},"app.use(xxxRouter.allowedMethods())","。模块多了之后也可以写个循环自动加载。",[1534,3918],{},[1525,3920,3922],{"id":3921},"小练习","🧪 小练习",[3924,3925,3926],"ol",{},[2905,3927,3928,3929,3932,3933,3935,3936,3935,3939,3942,3943,3945],{},"模仿 users 模块，新建 ",[1552,3930,3931],{},"routes/articles.js","，实现文章的增删改查接口（字段：",[1552,3934,2005],{},"、",[1552,3937,3938],{},"title",[1552,3940,3941],{},"content","），并在 ",[1552,3944,2936],{}," 中注册。",[1544,3947,3949],{"className":1611,"code":3948,"filename":3931,"language":1614,"meta":1550,"style":1550},"import Router from '@koa/router';\n\nconst router = new Router({ prefix: '/articles' });\n\n// 请在这里编写代码\n\nexport default router;\n",[1552,3950,3951,3967,3971,4004,4008,4013,4017],{"__ignoreMap":1550},[1570,3952,3953,3955,3957,3959,3961,3963,3965],{"class":1572,"line":1573},[1570,3954,1622],{"class":1621},[1570,3956,1626],{"class":1625},[1570,3958,1629],{"class":1621},[1570,3960,1633],{"class":1632},[1570,3962,1636],{"class":1580},[1570,3964,1639],{"class":1632},[1570,3966,1642],{"class":1632},[1570,3968,3969],{"class":1572,"line":1645},[1570,3970,1649],{"emptyLinePlaceholder":1648},[1570,3972,3973,3975,3977,3979,3981,3983,3985,3987,3989,3991,3993,3996,3998,4000,4002],{"class":1572,"line":1652},[1570,3974,1656],{"class":1655},[1570,3976,1659],{"class":1625},[1570,3978,1662],{"class":1632},[1570,3980,1665],{"class":1632},[1570,3982,1669],{"class":1668},[1570,3984,1672],{"class":1625},[1570,3986,1675],{"class":1632},[1570,3988,1679],{"class":1678},[1570,3990,1682],{"class":1632},[1570,3992,1633],{"class":1632},[1570,3994,3995],{"class":1580},"/articles",[1570,3997,1639],{"class":1632},[1570,3999,1692],{"class":1632},[1570,4001,1695],{"class":1625},[1570,4003,1642],{"class":1632},[1570,4005,4006],{"class":1572,"line":1700},[1570,4007,1649],{"emptyLinePlaceholder":1648},[1570,4009,4010],{"class":1572,"line":1705},[1570,4011,4012],{"class":1708},"// 请在这里编写代码\n",[1570,4014,4015],{"class":1572,"line":1712},[1570,4016,1649],{"emptyLinePlaceholder":1648},[1570,4018,4019,4021,4023,4025],{"class":1572,"line":1726},[1570,4020,2889],{"class":1621},[1570,4022,2892],{"class":1621},[1570,4024,2895],{"class":1625},[1570,4026,1642],{"class":1632},[3924,4028,4029],{"start":1645},[2905,4030,4031,4032,4035],{},"在“获取列表”接口上支持查询参数 ",[1552,4033,4034],{},"?keyword=xxx","，返回标题包含该关键词的文章。",[1534,4037],{},[1530,4039,4040],{},"🎉 恭喜你已经完成 Koa 课程的全部内容！从 hello world 到完整的 RESTful 接口，你已经具备了用 Koa 独立开发后端接口的能力。接下来可以尝试把内存数据换成真实数据库，让你的接口真正落地！",[4042,4043,4044],"style",{},"html pre.shiki code .sYGMc, html code.shiki .sYGMc{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sIEYB, html code.shiki .sIEYB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: 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