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数据回来后\n",[1567,1865,1866,1868,1870,1873,1875,1877],{"class":1569,"line":1658},[1567,1867,1581],{"class":1580},[1567,1869,1585],{"class":1584},[1567,1871,1872],{"class":1588},"hideLoading",[1567,1874,1848],{"class":1580},[1567,1876,1851],{"class":1584},[1567,1878,1879],{"class":1573}," // 关闭加载动画\n",[1567,1881,1882,1884,1886,1888,1890,1892,1895,1897,1899,1901,1903,1905,1908,1910,1912,1914,1916],{"class":1569,"line":1710},[1567,1883,1581],{"class":1580},[1567,1885,1585],{"class":1584},[1567,1887,1537],{"class":1588},[1567,1889,1591],{"class":1580},[1567,1891,1668],{"class":1584},[1567,1893,1894],{"class":1600}," series",[1567,1896,1604],{"class":1584},[1567,1898,1633],{"class":1580},[1567,1900,1668],{"class":1584},[1567,1902,1628],{"class":1600},[1567,1904,1604],{"class":1584},[1567,1906,1907],{"class":1580}," list 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onMounted",[1567,2024,1625],{"class":1584},[1567,2026,1957],{"class":1580},[1567,2028,2029],{"class":1584}," }",[1567,2031,2032],{"class":2016}," from",[1567,2034,1615],{"class":1584},[1567,2036,1932],{"class":1618},[1567,2038,1622],{"class":1584},[1567,2040,1718],{"class":1584},[1567,2042,2043,2045,2048,2051,2054,2057,2059,2062,2064],{"class":1569,"line":1728},[1567,2044,2017],{"class":2016},[1567,2046,2047],{"class":1584}," *",[1567,2049,2050],{"class":2016}," as",[1567,2052,2053],{"class":1580}," echarts ",[1567,2055,2056],{"class":2016},"from",[1567,2058,1615],{"class":1584},[1567,2060,2061],{"class":1618},"echarts",[1567,2063,1622],{"class":1584},[1567,2065,1718],{"class":1584},[1567,2067,2068,2070,2073,2075,2077,2080,2082],{"class":1569,"line":1734},[1567,2069,2017],{"class":2016},[1567,2071,2072],{"class":1580}," axios 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res",[1567,2179,2180],{"class":1584}," =",[1567,2182,2183],{"class":2016}," await",[1567,2185,2186],{"class":1580}," axios",[1567,2188,1585],{"class":1584},[1567,2190,2191],{"class":1588},"get",[1567,2193,1591],{"class":1600},[1567,2195,1622],{"class":1584},[1567,2197,2198],{"class":1618},"/api/sales/weekly",[1567,2200,1622],{"class":1584},[1567,2202,1715],{"class":1600},[1567,2204,1718],{"class":1584},[1567,2206,2208,2210,2212,2215,2217,2220,2222,2224,2226,2228,2231],{"class":1569,"line":2207},17,[1567,2209,2174],{"class":1956},[1567,2211,1607],{"class":1584},[1567,2213,2214],{"class":1580}," days",[1567,2216,1625],{"class":1584},[1567,2218,2219],{"class":1580}," values",[1567,2221,2029],{"class":1584},[1567,2223,2180],{"class":1584},[1567,2225,2177],{"class":1580},[1567,2227,1585],{"class":1584},[1567,2229,2230],{"class":1580},"data",[1567,2232,1718],{"class":1584},[1567,2234,2236],{"class":1569,"line":2235},18,[1567,2237,1725],{"emptyLinePlaceholder":1724},[1567,2239,2241,2243,2245,2247,2249],{"class":1569,"line":2240},19,[1567,2242,2155],{"class":1580},[1567,2244,1585],{"class":1584},[1567,2246,1872],{"class":1588},[1567,2248,1848],{"class":1600},[1567,2250,1718],{"class":1584},[1567,2252,2254,2256,2258,2260,2262],{"class":1569,"line":2253},20,[1567,2255,2155],{"class":1580},[1567,2257,1585],{"class":1584},[1567,2259,1537],{"class":1588},[1567,2261,1591],{"class":1600},[1567,2263,1594],{"class":1584},[1567,2265,2267,2270,2272,2274,2276,2278,2280],{"class":1569,"line":2266},21,[1567,2268,2269],{"class":1600},"        xAxis",[1567,2271,1604],{"class":1584},[1567,2273,1607],{"class":1584},[1567,2275,1628],{"class":1600},[1567,2277,1604],{"class":1584},[1567,2279,2214],{"class":1580},[1567,2281,2282],{"class":1584}," },\n",[1567,2284,2286,2289,2291,2293,2295,2297,2299,2301,2303,2305],{"class":1569,"line":2285},22,[1567,2287,2288],{"class":1600},"        series",[1567,2290,1604],{"class":1584},[1567,2292,1633],{"class":1600},[1567,2294,1668],{"class":1584},[1567,2296,1628],{"class":1600},[1567,2298,1604],{"class":1584},[1567,2300,2219],{"class":1580},[1567,2302,2029],{"class":1584},[1567,2304,1704],{"class":1600},[1567,2306,1707],{"class":1584},[1567,2308,2310,2313,2315],{"class":1569,"line":2309},23,[1567,2311,2312],{"class":1584},"    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echarts",[1567,2353,1585],{"class":1584},[1567,2355,2356],{"class":1588},"init",[1567,2358,1591],{"class":1600},[1567,2360,1966],{"class":1580},[1567,2362,1585],{"class":1584},[1567,2364,2365],{"class":1580},"value",[1567,2367,1715],{"class":1600},[1567,2369,1718],{"class":1584},[1567,2371,2373],{"class":1569,"line":2372},28,[1567,2374,1725],{"emptyLinePlaceholder":1724},[1567,2376,2378],{"class":1569,"line":2377},29,[1567,2379,2380],{"class":1573},"    // 先给空数据，让图表骨架先出来\n",[1567,2382,2384,2386,2388,2390,2392],{"class":1569,"line":2383},30,[1567,2385,2155],{"class":1580},[1567,2387,1585],{"class":1584},[1567,2389,1537],{"class":1588},[1567,2391,1591],{"class":1600},[1567,2393,1594],{"class":1584},[1567,2395,2397,2400,2402,2404,2407,2409,2411,2414,2416],{"class":1569,"line":2396},31,[1567,2398,2399],{"class":1600},"        title",[1567,2401,1604],{"class":1584},[1567,2403,1607],{"class":1584},[1567,2405,2406],{"class":1600}," 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name",[1567,2509,1604],{"class":1584},[1567,2511,1615],{"class":1584},[1567,2513,2514],{"class":1618},"销量",[1567,2516,1622],{"class":1584},[1567,2518,1625],{"class":1584},[1567,2520,1610],{"class":1600},[1567,2522,1604],{"class":1584},[1567,2524,1615],{"class":1584},[1567,2526,1677],{"class":1618},[1567,2528,1622],{"class":1584},[1567,2530,1625],{"class":1584},[1567,2532,1628],{"class":1600},[1567,2534,1604],{"class":1584},[1567,2536,2469],{"class":1600},[1567,2538,1701],{"class":1584},[1567,2540,1704],{"class":1600},[1567,2542,1707],{"class":1584},[1567,2544,2546,2548,2550],{"class":1569,"line":2545},36,[1567,2547,2312],{"class":1584},[1567,2549,1715],{"class":1600},[1567,2551,1718],{"class":1584},[1567,2553,2555],{"class":1569,"line":2554},37,[1567,2556,1725],{"emptyLinePlaceholder":1724},[1567,2558,2560,2563,2565],{"class":1569,"line":2559},38,[1567,2561,2562],{"class":1588},"    fetchData",[1567,2564,1848],{"class":1600},[1567,2566,1718],{"class":1584},[1567,2568,2570,2572,2574],{"class":1569,"line":2569},39,[1567,2571,1701],{"class":1584},[1567,2573,1715],{"class":1580},[1567,2575,1718],{"class":1584},[1567,2577,2579,2581,2583],{"class":1569,"line":2578},40,[1567,2580,1991],{"class":1584},[1567,2582,2006],{"class":1600},[1567,2584,1945],{"class":1584},[1567,2586,2588],{"class":1569,"line":2587},41,[1567,2589,1725],{"emptyLinePlaceholder":1724},[1567,2591,2593,2595,2598,2601],{"class":1569,"line":2592},42,[1567,2594,1939],{"class":1584},[1567,2596,2597],{"class":1600},"style",[1567,2599,2600],{"class":1956}," scoped",[1567,2602,1945],{"class":1584},[1567,2604,2606,2608,2611],{"class":1569,"line":2605},43,[1567,2607,1585],{"class":1584},[1567,2609,1581],{"class":2610},"sYGMc",[1567,2612,2149],{"class":1584},[1567,2614,2616,2620,2622,2625],{"class":1569,"line":2615},44,[1567,2617,2619],{"class":2618},"sug0G","    width",[1567,2621,1604],{"class":1584},[1567,2623,2624],{"class":1690}," 100%",[1567,2626,1718],{"class":1584},[1567,2628,2630,2633,2635,2638],{"class":1569,"line":2629},45,[1567,2631,2632],{"class":2618},"    height",[1567,2634,1604],{"class":1584},[1567,2636,2637],{"class":1690}," 400px",[1567,2639,1718],{"class":1584},[1567,2641,2643],{"class":1569,"line":2642},46,[1567,2644,2645],{"class":1584},"}\n",[1567,2647,2649,2651,2653],{"class":1569,"line":2648},47,[1567,2650,1991],{"class":1584},[1567,2652,2597],{"class":1600},[1567,2654,1945],{"class":1584},[1531,2656,2657,2658,2661],{},"注意这里的套路：",[1553,2659,2660],{},"先给空数据让图表骨架渲染出来","，接口返回后再填充，页面不会长时间空白。",[2663,2664,2665],"tip",{},[1531,2666,2667,2668,2671,2672,2675,2676,2679],{},"需要定时刷新（比如监控大屏）时，用 ",[1535,2669,2670],{},"setInterval"," 周期性调用 ",[1535,2673,2674],{},"fetchData","，记得在组件卸载时 ",[1535,2677,2678],{},"clearInterval","。",[1540,2681],{},[1526,2683,2685],{"id":2684},"窗口自适应-resize","🧱 窗口自适应 resize",[1531,2687,2688,2689,2692],{},"浏览器窗口变化时，图表不会自动跟随缩放，需要监听 ",[1535,2690,2691],{},"resize"," 事件手动调整：",[1558,2694,2696],{"className":1560,"code":2695,"language":1562,"meta":1563,"style":1563},"const handleResize = () => {\n    chart.resize();\n};\n\nonMounted(() => {\n    window.addEventListener('resize', handleResize);\n});\n\nonBeforeUnmount(() => {\n    window.removeEventListener('resize', handleResize);\n});\n",[1535,2697,2698,2713,2725,2729,2733,2745,2772,2780,2784,2797,2822],{"__ignoreMap":1563},[1567,2699,2700,2702,2705,2707,2709,2711],{"class":1569,"line":1570},[1567,2701,2092],{"class":1956},[1567,2703,2704],{"class":1580}," handleResize ",[1567,2706,1960],{"class":1584},[1567,2708,2143],{"class":1584},[1567,2710,2146],{"class":1956},[1567,2712,2149],{"class":1584},[1567,2714,2715,2717,2719,2721,2723],{"class":1569,"line":1577},[1567,2716,2155],{"class":1580},[1567,2718,1585],{"class":1584},[1567,2720,2691],{"class":1588},[1567,2722,1848],{"class":1600},[1567,2724,1718],{"class":1584},[1567,2726,2727],{"class":1569,"line":1597},[1567,2728,2322],{"class":1584},[1567,2730,2731],{"class":1569,"line":1658},[1567,2732,1725],{"emptyLinePlaceholder":1724},[1567,2734,2735,2737,2739,2741,2743],{"class":1569,"line":1710},[1567,2736,2333],{"class":1588},[1567,2738,1591],{"class":1580},[1567,2740,1848],{"class":1584},[1567,2742,2146],{"class":1956},[1567,2744,2149],{"class":1584},[1567,2746,2747,2750,2752,2755,2757,2759,2761,2763,2765,2768,2770],{"class":1569,"line":1721},[1567,2748,2749],{"class":1580},"    window",[1567,2751,1585],{"class":1584},[1567,2753,2754],{"class":1588},"addEventListener",[1567,2756,1591],{"class":1600},[1567,2758,1622],{"class":1584},[1567,2760,2691],{"class":1618},[1567,2762,1622],{"class":1584},[1567,2764,1625],{"class":1584},[1567,2766,2767],{"class":1580}," handleResize",[1567,2769,1715],{"class":1600},[1567,2771,1718],{"class":1584},[1567,2773,2774,2776,2778],{"class":1569,"line":1728},[1567,2775,1701],{"class":1584},[1567,2777,1715],{"class":1580},[1567,2779,1718],{"class":1584},[1567,2781,2782],{"class":1569,"line":1734},[1567,2783,1725],{"emptyLinePlaceholder":1724},[1567,2785,2786,2789,2791,2793,2795],{"class":1569,"line":1747},[1567,2787,2788],{"class":1588},"onBeforeUnmount",[1567,2790,1591],{"class":1580},[1567,2792,1848],{"class":1584},[1567,2794,2146],{"class":1956},[1567,2796,2149],{"class":1584},[1567,2798,2799,2801,2803,2806,2808,2810,2812,2814,2816,2818,2820],{"class":1569,"line":1780},[1567,2800,2749],{"class":1580},[1567,2802,1585],{"class":1584},[1567,2804,2805],{"class":1588},"removeEventListener",[1567,2807,1591],{"class":1600},[1567,2809,1622],{"class":1584},[1567,2811,2691],{"class":1618},[1567,2813,1622],{"class":1584},[1567,2815,1625],{"class":1584},[1567,2817,2767],{"class":1580},[1567,2819,1715],{"class":1600},[1567,2821,1718],{"class":1584},[1567,2823,2824,2826,2828],{"class":1569,"line":2111},[1567,2825,1701],{"class":1584},[1567,2827,1715],{"class":1580},[1567,2829,1718],{"class":1584},[1531,2831,2832],{},"漏掉这一步，窗口一缩放图表就会溢出或者留白。",[1540,2834],{},[1526,2836,2838],{"id":2837},"小节总结","🧾 小节总结",[2840,2841,2842,2849,2856,2864,2870],"ul",{},[2843,2844,2845,2846,2848],"li",{},"再次调用 ",[1535,2847,1537],{}," 即可更新图表，默认合并模式，只更新变化的部分。",[2843,2850,2851,2852,2855],{},"新数据可能比旧数据短时，用 ",[1535,2853,2854],{},"setOption(option, true)"," 整体替换。",[2843,2857,2858,2860,2861,2863],{},[1535,2859,1845],{}," / ",[1535,2862,1872],{}," 在请求前后包裹，提升等待体验。",[2843,2865,2866,2867,2869],{},"异步套路：先空数据渲染骨架 → 接口返回 → 再 ",[1535,2868,1537],{}," 填充。",[2843,2871,2872,2873,2875,2876,2879],{},"监听窗口 ",[1535,2874,2691],{}," 事件调用 ",[1535,2877,2878],{},"chart.resize()","，组件卸载时移除监听。",[1540,2881],{},[1526,2883,2885],{"id":2884},"知识问答","❓ 知识问答",[1531,2887,2888],{},[1553,2889,2890],{},"Q1：setOption 会重新初始化图表吗？",[1531,2892,2893],{},"不会。它在原实例上增量更新，性能很好，频繁调用也没问题。",[1531,2895,2896],{},[1553,2897,2898],{},"Q2：接口返回的数据格式和 ECharts 需要的不一样怎么办？",[1531,2900,2901,2902,2905,2906,2679],{},"在拿到响应后先做一次数据转换（比如用 ",[1535,2903,2904],{},"map"," 拆出 days 和 values 两个数组），再交给 ",[1535,2907,1537],{},[1531,2909,2910],{},[1553,2911,2912],{},"Q3：loading 动画样式能改吗？",[1531,2914,2915,2916,2918],{},"可以，",[1535,2917,1845],{}," 接收一个配置对象，能改文字、颜色、遮罩。初学阶段用默认样式即可。",[1531,2920,2921],{},[1553,2922,2923],{},"Q4：为什么图表在弹窗、抽屉里尺寸不对？",[1531,2925,2926,2927,2929],{},"容器显示前后尺寸变了，但图表没有重算。在容器显示之后手动调一次 ",[1535,2928,2878],{}," 即可。",[1540,2931],{},[1526,2933,2935],{"id":2934},"小练习","🧪 小练习",[1531,2937,2938],{},"模拟一个 1 秒后返回数据的接口，完成异步加载全流程：",[2940,2941,2942,2945,2952],"ol",{},[2843,2943,2944],{},"先渲染一个空数据的折线图骨架。",[2843,2946,2947,2948,2951],{},"用 ",[1535,2949,2950],{},"setTimeout"," 模拟接口，1 秒后返回 7 天数据。",[2843,2953,2954],{},"等待期间显示 loading，数据到达后关闭并更新图表。",[1558,2956,2958],{"className":1560,"code":2957,"language":1562,"meta":1563,"style":1563},"onMounted(() => {\n    const chart = echarts.init(chartRef.value);\n\n    // 请在这里编写代码\n});\n",[1535,2959,2960,2972,2999,3003,3008],{"__ignoreMap":1563},[1567,2961,2962,2964,2966,2968,2970],{"class":1569,"line":1570},[1567,2963,2333],{"class":1588},[1567,2965,1591],{"class":1580},[1567,2967,1848],{"class":1584},[1567,2969,2146],{"class":1956},[1567,2971,2149],{"class":1584},[1567,2973,2974,2976,2979,2981,2983,2985,2987,2989,2991,2993,2995,2997],{"class":1569,"line":1577},[1567,2975,2174],{"class":1956},[1567,2977,2978],{"class":1580}," chart",[1567,2980,2180],{"class":1584},[1567,2982,2351],{"class":1580},[1567,2984,1585],{"class":1584},[1567,2986,2356],{"class":1588},[1567,2988,1591],{"class":1600},[1567,2990,1966],{"class":1580},[1567,2992,1585],{"class":1584},[1567,2994,2365],{"class":1580},[1567,2996,1715],{"class":1600},[1567,2998,1718],{"class":1584},[1567,3000,3001],{"class":1569,"line":1597},[1567,3002,1725],{"emptyLinePlaceholder":1724},[1567,3004,3005],{"class":1569,"line":1658},[1567,3006,3007],{"class":1573},"    // 请在这里编写代码\n",[1567,3009,3010,3012,3014],{"class":1569,"line":1710},[1567,3011,1701],{"class":1584},[1567,3013,1715],{"class":1580},[1567,3015,1718],{"class":1584},[1540,3017],{},[1531,3019,3020],{},"🎉 恭喜你已经能让图表对接真实数据了！下一篇我们把这些经验沉淀成一个可复用的 Vue3 图表组件，并学会按需引入减小打包体积。",[2597,3022,3023],{},"html 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 .sndM8, html code.shiki .sndM8{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .s86vT, html code.shiki .s86vT{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .swgpB, html code.shiki .swgpB{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sd2Uz, html code.shiki .sd2Uz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sIEYB, html code.shiki .sIEYB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .smPcV, html code.shiki .smPcV{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sPKOg, html code.shiki .sPKOg{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}html pre.shiki code .s50WR, html code.shiki .s50WR{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .s8pZq, html code.shiki .s8pZq{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sYGMc, html code.shiki .sYGMc{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sug0G, html code.shiki .sug0G{--shiki-light:#8796B0;--shiki-default:#B2CCD6;--shiki-dark:#B2CCD6}",{"title":1563,"searchDepth":1577,"depth":1577,"links":3025},[3026,3027,3028,3029,3030,3031,3032,3033],{"id":1528,"depth":1577,"text":1529},{"id":1544,"depth":1577,"text":1545},{"id":1827,"depth":1577,"text":1828},{"id":1922,"depth":1577,"text":1923},{"id":2684,"depth":1577,"text":2685},{"id":2837,"depth":1577,"text":2838},{"id":2884,"depth":1577,"text":2885},{"id":2934,"depth":1577,"text":2935},"掌握 setOption 的合并更新机制、loading 动画、接口数据加载和图表自适应 resize。","md",null,{},{"title":1029},{"title":1521,"description":3034},"Seyxb3doYt",[3042,3044],{"title":1025,"path":1026,"stem":1027,"description":3043,"children":-1},"掌握 ECharts 的事件监听、tooltip 格式化、dataZoom 缩放和 markPoint/markLine 标注。",{"title":1033,"path":1034,"stem":1035,"description":3045,"children":-1},"把 ECharts 封装成可复用的 Vue3 组件，处理好更新与销毁，并用按需引入减小打包体积。",1784715112952]