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imageUrl",[1562,1900,1666],{"class":1568},[1562,1902,1669],{"class":1568},[1562,1904,1905],{"class":1672},"xiaoming.png",[1562,1907,1676],{"class":1568},[1562,1909,1679],{"class":1568},[1562,1911,1913],{"class":1564,"line":1912},15,[1562,1914,1685],{"class":1568},[1562,1916,1918],{"class":1564,"line":1917},16,[1562,1919,1691],{"class":1568},[1562,1921,1923],{"class":1564,"line":1922},17,[1562,1924,1697],{"class":1568},[1562,1926,1928,1930,1932],{"class":1564,"line":1927},18,[1562,1929,1595],{"class":1568},[1562,1931,1623],{"class":1572},[1562,1933,1576],{"class":1568},[1530,1935,1936,1937,1939],{},"这里 ",[1547,1938,1785],{}," 是绑定的变量，图片路径会根据它的值变化。",[1715,1941,1942],{},[1530,1943,1944,1945,1947],{},"使用 ",[1547,1946,1742],{}," 可以让元素属性随数据动态变化，避免手动操作 DOM，提升开发效率。",[1534,1949],{},[1734,1951,1953],{"id":1952},"v-model双向绑定表单元素","v-model：双向绑定表单元素",[1530,1955,1956,1959],{},[1547,1957,1958],{},"v-model"," 让表单元素与数据实现双向绑定，使用户输入实时同步到数据中，数据变化也同步更新视图。",[1552,1961,1963],{"className":1554,"code":1962,"filename":1556,"language":1557,"meta":1558,"style":1558},"\u003Ctemplate>\n    \u003Cdiv>\n        \u003Cp>你输入的用户名是：{{ username }}\u003C/p>\n        \u003Cinput type=\"text\" v-model=\"username\" placeholder=\"请输入用户名\" />\n    \u003C/div>\n\u003C/template>\n\n\u003Cscript>\nexport default {\n    data() {\n        return {\n            username: '',\n        };\n    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\u003Cdiv>\n        \u003Cp v-if=\"isLoggedIn\">欢迎回来！\u003C/p>\n        \u003Cp v-else>请先登录\u003C/p>\n    \u003C/div>\n\u003C/template>\n\n\u003Cscript>\nexport default {\n    data() {\n        return {\n            isLoggedIn: false,\n        };\n    },\n};\n\u003C/script>\n",[1547,2155,2156,2164,2172,2201,2221,2229,2237,2241,2249,2257,2265,2271,2284,2288,2292,2296],{"__ignoreMap":1558},[1562,2157,2158,2160,2162],{"class":1564,"line":1565},[1562,2159,1569],{"class":1568},[1562,2161,1573],{"class":1572},[1562,2163,1576],{"class":1568},[1562,2165,2166,2168,2170],{"class":1564,"line":1579},[1562,2167,1582],{"class":1568},[1562,2169,1585],{"class":1572},[1562,2171,1576],{"class":1568},[1562,2173,2174,2176,2178,2181,2183,2185,2188,2190,2192,2195,2197,2199],{"class":1564,"line":1602},[1562,2175,1769],{"class":1568},[1562,2177,1530],{"class":1572},[1562,2179,2180],{"class":1775}," v-if",[1562,2182,1779],{"class":1568},[1562,2184,1782],{"class":1568},[1562,2186,2187],{"class":1672},"isLoggedIn",[1562,2189,1782],{"class":1568},[1562,2191,1588],{"class":1568},[1562,2193,2194],{"class":1591},"欢迎回来！",[1562,2196,1595],{"class":1568},[1562,2198,1530],{"class":1572},[1562,2200,1576],{"class":1568},[1562,2202,2203,2205,2207,2210,2212,2215,2217,2219],{"class":1564,"line":1611},[1562,2204,1769],{"class":1568},[1562,2206,1530],{"class":1572},[1562,2208,2209],{"class":1775}," v-else",[1562,2211,1588],{"class":1568},[1562,2213,2214],{"class":1591},"请先登录",[1562,2216,1595],{"class":1568},[1562,2218,1530],{"class":1572},[1562,2220,1576],{"class":1568},[1562,2222,2223,2225,2227],{"class":1564,"line":1618},[1562,2224,1846],{"class":1568},[1562,2226,1585],{"class":1572},[1562,2228,1576],{"class":1568},[1562,2230,2231,2233,2235],{"class":1564,"line":1628},[1562,2232,1595],{"class":1568},[1562,2234,1573],{"class":1572},[1562,2236,1576],{"class":1568},[1562,2238,2239],{"class":1564,"line":1641},[1562,2240,1615],{"emptyLinePlaceholder":1614},[1562,2242,2243,2245,2247],{"class":1564,"line":1652},[1562,2244,1569],{"class":1568},[1562,2246,1623],{"class":1572},[1562,2248,1576],{"class":1568},[1562,2250,2251,2253,2255],{"class":1564,"line":1660},[1562,2252,1632],{"class":1631},[1562,2254,1635],{"class":1631},[1562,2256,1638],{"class":1568},[1562,2258,2259,2261,2263],{"class":1564,"line":1682},[1562,2260,1644],{"class":1572},[1562,2262,1647],{"class":1568},[1562,2264,1638],{"class":1568},[1562,2266,2267,2269],{"class":1564,"line":1688},[1562,2268,1655],{"class":1631},[1562,2270,1638],{"class":1568},[1562,2272,2273,2276,2278,2282],{"class":1564,"line":1694},[1562,2274,2275],{"class":1572},"            isLoggedIn",[1562,2277,1666],{"class":1568},[1562,2279,2281],{"class":2280},"sPKOg"," false",[1562,2283,1679],{"class":1568},[1562,2285,2286],{"class":1564,"line":1700},[1562,2287,1685],{"class":1568},[1562,2289,2290],{"class":1564,"line":1895},[1562,2291,1691],{"class":1568},[1562,2293,2294],{"class":1564,"line":1912},[1562,2295,1697],{"class":1568},[1562,2297,2298,2300,2302],{"class":1564,"line":1917},[1562,2299,1595],{"class":1568},[1562,2301,1623],{"class":1572},[1562,2303,1576],{"class":1568},[1530,2305,2306,2308],{},[1547,2307,2187],{}," 为真时显示欢迎语，否则显示登录提示。",[2310,2311,2312],"warning",{},[1530,2313,2314,2316,2317,2320],{},[1547,2315,2149],{}," 会真正销毁或创建元素，频繁切换可能影响性能。针对简单显示隐藏，建议用 ",[1547,2318,2319],{},"v-show","。",[1534,2322],{},[1734,2324,2326],{"id":2325},"v-for列表渲染","v-for：列表渲染",[1530,2328,2329],{},"用来遍历数组或对象生成多个元素。",[1552,2331,2333],{"className":1554,"code":2332,"filename":1556,"language":1557,"meta":1558,"style":1558},"\u003Ctemplate>\n    \u003Cul>\n        \u003Cli v-for=\"(item, index) in items\" :key=\"index\">{{ item }}\u003C/li>\n    \u003C/ul>\n\u003C/template>\n\n\u003Cscript>\nexport default {\n    data() {\n        return {\n            items: ['苹果', '香蕉', '橙子'],\n        };\n    },\n};\n\u003C/script>\n",[1547,2334,2335,2343,2352,2394,2402,2410,2414,2422,2430,2438,2444,2485,2489,2493,2497],{"__ignoreMap":1558},[1562,2336,2337,2339,2341],{"class":1564,"line":1565},[1562,2338,1569],{"class":1568},[1562,2340,1573],{"class":1572},[1562,2342,1576],{"class":1568},[1562,2344,2345,2347,2350],{"class":1564,"line":1579},[1562,2346,1582],{"class":1568},[1562,2348,2349],{"class":1572},"ul",[1562,2351,1576],{"class":1568},[1562,2353,2354,2356,2359,2362,2364,2366,2369,2371,2374,2376,2378,2381,2383,2385,2388,2390,2392],{"class":1564,"line":1602},[1562,2355,1769],{"class":1568},[1562,2357,2358],{"class":1572},"li",[1562,2360,2361],{"class":1775}," 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[",[1562,2455,1676],{"class":1568},[1562,2457,2458],{"class":1672},"苹果",[1562,2460,1676],{"class":1568},[1562,2462,2463],{"class":1568},",",[1562,2465,1669],{"class":1568},[1562,2467,2468],{"class":1672},"香蕉",[1562,2470,1676],{"class":1568},[1562,2472,2463],{"class":1568},[1562,2474,1669],{"class":1568},[1562,2476,2477],{"class":1672},"橙子",[1562,2479,1676],{"class":1568},[1562,2481,2482],{"class":1572},"]",[1562,2484,1679],{"class":1568},[1562,2486,2487],{"class":1564,"line":1694},[1562,2488,1685],{"class":1568},[1562,2490,2491],{"class":1564,"line":1700},[1562,2492,1691],{"class":1568},[1562,2494,2495],{"class":1564,"line":1895},[1562,2496,1697],{"class":1568},[1562,2498,2499,2501,2503],{"class":1564,"line":1912},[1562,2500,1595],{"class":1568},[1562,2502,1623],{"class":1572},[1562,2504,1576],{"class":1568},[1530,2506,2507],{},"这段代码会动态生成一个水果列表。",[1715,2509,2510],{},[1530,2511,1944,2512,2515],{},[1547,2513,2514],{},":key"," 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改变，元素样式同步更新。",[1715,3264,3265],{},[1530,3266,3267],{},"动态样式绑定让页面更灵活，也便于实现交互反馈。",[1534,3269],{},[1525,3271,3273],{"id":3272},"小节总结","🧾 小节总结",[2349,3275,3276,3279,3282],{},[2358,3277,3278],{},"模板语法让数据与视图高效绑定，常用指令简化逻辑控制。",[2358,3280,3281],{},"自定义指令扩展功能，过滤器用于格式化输出。",[2358,3283,3284],{},"动态绑定 Class 与 Style 实现页面样式的动态响应。",[1534,3286],{},[1525,3288,3290],{"id":3289},"知识问答qa","❓ 知识问答（Q&A）",[1530,3292,3293,3294,3258,3296,3298],{},"Q：",[1547,3295,1742],{},[1547,3297,1958],{}," 有什么区别？",[1530,3300,3301,3302,3304,3305,3307],{},"A：",[1547,3303,1742],{}," 用于绑定元素属性，单向绑定数据到视图；",[1547,3306,1958],{}," 是表单元素的双向绑定，用户输入能更新数据，数据变动也影响视图。",[1530,3309,3310,3311,3314,3315,3318],{},"Q：为什么建议 ",[1547,3312,3313],{},"v-for"," 使用 ",[1547,3316,3317],{},"key","？",[1530,3320,3301,3321,3323],{},[1547,3322,3317],{}," 帮助框架追踪每个节点，提高渲染效率，避免渲染错误。",[1530,3325,3326],{},"Q：自定义指令常用钩子有哪些？",[1530,3328,3329,3330,3258,3332,3334],{},"A：主要是 ",[1547,3331,2689],{},[1547,3333,2693],{},"，分别在指令绑定和更新时触发。",[1534,3336],{},[1525,3338,3340],{"id":3339},"小练习","🧪 小练习",[1530,3342,3343],{},"练习 1：自动聚焦输入框",[1530,3345,3346],{},"创建一个自定义指令 v-focus，当元素挂载时自动聚焦输入框。",[1552,3348,3350],{"className":1554,"code":3349,"filename":1556,"language":1557,"meta":1558,"style":1558},"\u003Ctemplate>\n    \u003Cdiv>\n        \u003Cinput v-model=\"name\" v-focus placeholder=\"页面加载时自动聚焦\" />\n    \u003C/div>\n\u003C/template>\n\n\u003Cscript>\nexport default {\n    data() {\n        return {\n            name: '',\n        };\n    },\n};\n\u003C/script>\n",[1547,3351,3352,3360,3368,3398,3406,3414,3418,3426,3434,3442,3448,3458,3462,3466,3470],{"__ignoreMap":1558},[1562,3353,3354,3356,3358],{"class":1564,"line":1565},[1562,3355,1569],{"class":1568},[1562,3357,1573],{"class":1572},[1562,3359,1576],{"class":1568},[1562,3361,3362,3364,3366],{"class":1564,"line":1579},[1562,3363,1582],{"class":1568},[1562,3365,1585],{"class":1572},[1562,3367,1576],{"class":1568},[1562,3369,3370,3372,3374,3376,3378,3380,3382,3384,3386,3388,3390,3392,3394,3396],{"class":1564,"line":1602},[1562,3371,1769],{"class":1568},[1562,3373,2004],{"class":1572},[1562,3375,2019],{"class":1775},[1562,3377,1779],{"class":1568},[1562,3379,1782],{"class":1568},[1562,3381,1549],{"class":1672},[1562,3383,1782],{"class":1568},[1562,3385,2657],{"class":1775},[1562,3387,2031],{"class":1775},[1562,3389,1779],{"class":1568},[1562,3391,1782],{"class":1568},[1562,3393,2666],{"class":1672},[1562,3395,1782],{"class":1568},[1562,3397,1802],{"class":1568},[1562,3399,3400,3402,3404],{"class":1564,"line":1611},[1562,3401,1846],{"class":1568},[1562,3403,1585],{"class":1572},[1562,3405,1576],{"class":1568},[1562,3407,3408,3410,3412],{"class":1564,"line":1618},[1562,3409,1595],{"class":1568},[1562,3411,1573],{"class":1572},[1562,3413,1576],{"class":1568},[1562,3415,3416],{"class":1564,"line":1628},[1562,3417,1615],{"emptyLinePlaceholder":1614},[1562,3419,3420,3422,3424],{"class":1564,"line":1641},[1562,3421,1569],{"class":1568},[1562,3423,1623],{"class":1572},[1562,3425,1576],{"class":1568},[1562,3427,3428,3430,3432],{"class":1564,"line":1652},[1562,3429,1632],{"class":1631},[1562,3431,1635],{"class":1631},[1562,3433,1638],{"class":1568},[1562,3435,3436,3438,3440],{"class":1564,"line":1660},[1562,3437,1644],{"class":1572},[1562,3439,1647],{"class":1568},[1562,3441,1638],{"class":1568},[1562,3443,3444,3446],{"class":1564,"line":1682},[1562,3445,1655],{"class":1631},[1562,3447,1638],{"class":1568},[1562,3449,3450,3452,3454,3456],{"class":1564,"line":1688},[1562,3451,1663],{"class":1572},[1562,3453,1666],{"class":1568},[1562,3455,2102],{"class":1568},[1562,3457,1679],{"class":1568},[1562,3459,3460],{"class":1564,"line":1694},[1562,3461,1685],{"class":1568},[1562,3463,3464],{"class":1564,"line":1700},[1562,3465,1691],{"class":1568},[1562,3467,3468],{"class":1564,"line":1895},[1562,3469,1697],{"class":1568},[1562,3471,3472,3474,3476],{"class":1564,"line":1912},[1562,3473,1595],{"class":1568},[1562,3475,1623],{"class":1572},[1562,3477,1576],{"class":1568},[1552,3479,3481],{"className":2527,"code":3480,"filename":2529,"language":2530,"meta":1558,"style":1558},"app.directive('focus', {\n    // 实现指令逻辑\n});\n",[1547,3482,3483,3503,3508],{"__ignoreMap":1558},[1562,3484,3485,3487,3489,3491,3493,3495,3497,3499,3501],{"class":1564,"line":1565},[1562,3486,2573],{"class":1591},[1562,3488,2548],{"class":1568},[1562,3490,2578],{"class":2551},[1562,3492,2555],{"class":1591},[1562,3494,1676],{"class":1568},[1562,3496,2585],{"class":1672},[1562,3498,1676],{"class":1568},[1562,3500,2463],{"class":1568},[1562,3502,1638],{"class":1568},[1562,3504,3505],{"class":1564,"line":1579},[1562,3506,3507],{"class":1811},"    // 实现指令逻辑\n",[1562,3509,3510,3512,3514],{"class":1564,"line":1602},[1562,3511,2628],{"class":1568},[1562,3513,2561],{"class":1591},[1562,3515,2564],{"class":1568},[1530,3517,3518],{},"练习 2：点击变色",[1530,3520,3521],{},"创建一个自定义指令 v-color-toggle，点击元素时在红色和蓝色之间切换字体颜色。",[1552,3523,3525],{"className":1554,"code":3524,"filename":1556,"language":1557,"meta":1558,"style":1558},"\u003Ctemplate>\n    \u003Cdiv>\n        \u003Cp v-color-toggle style=\"cursor: pointer\">点击我切换颜色\u003C/p>\n    \u003C/div>\n\u003C/template>\n",[1547,3526,3527,3535,3543,3575,3583],{"__ignoreMap":1558},[1562,3528,3529,3531,3533],{"class":1564,"line":1565},[1562,3530,1569],{"class":1568},[1562,3532,1573],{"class":1572},[1562,3534,1576],{"class":1568},[1562,3536,3537,3539,3541],{"class":1564,"line":1579},[1562,3538,1582],{"class":1568},[1562,3540,1585],{"class":1572},[1562,3542,1576],{"class":1568},[1562,3544,3545,3547,3549,3552,3555,3557,3559,3562,3564,3566,3569,3571,3573],{"class":1564,"line":1602},[1562,3546,1769],{"class":1568},[1562,3548,1530],{"class":1572},[1562,3550,3551],{"class":1775}," v-color-toggle",[1562,3553,3554],{"class":1775}," style",[1562,3556,1779],{"class":1568},[1562,3558,1782],{"class":1568},[1562,3560,3561],{"class":1672},"cursor: pointer",[1562,3563,1782],{"class":1568},[1562,3565,1588],{"class":1568},[1562,3567,3568],{"class":1591},"点击我切换颜色",[1562,3570,1595],{"class":1568},[1562,3572,1530],{"class":1572},[1562,3574,1576],{"class":1568},[1562,3576,3577,3579,3581],{"class":1564,"line":1611},[1562,3578,1846],{"class":1568},[1562,3580,1585],{"class":1572},[1562,3582,1576],{"class":1568},[1562,3584,3585,3587,3589],{"class":1564,"line":1618},[1562,3586,1595],{"class":1568},[1562,3588,1573],{"class":1572},[1562,3590,1576],{"class":1568},[1552,3592,3594],{"className":2527,"code":3593,"filename":2529,"language":2530,"meta":1558,"style":1558},"app.directive('color-toggle', {\n    // 实现指令逻辑\n});\n",[1547,3595,3596,3617,3621],{"__ignoreMap":1558},[1562,3597,3598,3600,3602,3604,3606,3608,3611,3613,3615],{"class":1564,"line":1565},[1562,3599,2573],{"class":1591},[1562,3601,2548],{"class":1568},[1562,3603,2578],{"class":2551},[1562,3605,2555],{"class":1591},[1562,3607,1676],{"class":1568},[1562,3609,3610],{"class":1672},"color-toggle",[1562,3612,1676],{"class":1568},[1562,3614,2463],{"class":1568},[1562,3616,1638],{"class":1568},[1562,3618,3619],{"class":1564,"line":1579},[1562,3620,3507],{"class":1811},[1562,3622,3623,3625,3627],{"class":1564,"line":1602},[1562,3624,2628],{"class":1568},[1562,3626,2561],{"class":1591},[1562,3628,2564],{"class":1568},[1534,3630],{},[1530,3632,3633],{},"🎉 恭喜你已经掌握 模板语法、常用指令、自定义指令、过滤器 和 动态样式绑定 技能啦！这些技能将大大提升你写前端代码的效率和质量。记得多练习，灵活运用哦！",[3635,3636,3637],"style",{},"html pre.shiki code .s86vT, html code.shiki .s86vT{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sd2Uz, html code.shiki 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pre.shiki code .syuKq, html code.shiki .syuKq{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}html pre.shiki code .sPKOg, html code.shiki .sPKOg{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}html pre.shiki code .swgpB, html code.shiki .swgpB{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sK9QF, html code.shiki .sK9QF{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html pre.shiki code .smPcV, html code.shiki .smPcV{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":1558,"searchDepth":1579,"depth":1579,"links":3639},[3640,3641,3642,3648,3649,3650,3654,3655,3656],{"id":1527,"depth":1579,"text":1528},{"id":1538,"depth":1579,"text":1539},{"id":1728,"depth":1579,"text":1729,"children":3643},[3644,3645,3646,3647],{"id":1736,"depth":1602,"text":1737},{"id":1952,"depth":1602,"text":1953},{"id":2142,"depth":1602,"text":2143},{"id":2325,"depth":1602,"text":2326},{"id":2520,"depth":1579,"text":2521},{"id":2699,"depth":1579,"text":2700},{"id":2950,"depth":1579,"text":2951,"children":3651},[3652,3653],{"id":2957,"depth":1602,"text":2958},{"id":3112,"depth":1602,"text":3113},{"id":3272,"depth":1579,"text":3273},{"id":3289,"depth":1579,"text":3290},{"id":3339,"depth":1579,"text":3340},"本文系统讲解前端模板语法、常用指令、自定义指令、过滤器及动态 Class 与 Style 绑定，帮助前端初学者快速掌握这些核心技能。","md",null,{},{"title":570},{"title":570,"description":3657},"18XQfCeeFg",[3665,3667],{"title":568,"path":564,"stem":565,"description":3666,"children":-1},"详细讲解 Vue 2.0 简介、MVVM 模式及常见安装方式，助你快速入门 Vue 开发。",{"title":574,"path":575,"stem":576,"description":3668,"children":-1},"从单文件组件结构到动态组件使用，带你全面掌握 Vue 组件化开发的核心知识。",1784715110932]