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require('node:fs/promises');\n\nasync function exportReport() {\n    // 1. 创建隐藏窗口，用户不会看到这个窗口\n    const reportWindow = new BrowserWindow({ show: false });\n\n    try {\n        // 2. 让隐藏窗口加载报告页面\n        await reportWindow.loadFile(path.join(__dirname, 'report.html'));\n\n        // 3. 把报告页面生成 PDF 数据\n        const pdf = await reportWindow.webContents.printToPDF({\n            printBackground: true,\n            pageSize: 'A4',\n        });\n\n        // 4. 打开系统保存对话框，让用户选择文件位置\n        const result = await dialog.showSaveDialog({\n            defaultPath: '资料分析报告.pdf',\n            filters: [{ name: 'PDF 文件', extensions: ['pdf'] }],\n        });\n\n        // 用户没有取消时，result.filePath 才是有效的保存路径\n        if (!result.canceled) {\n            // 5. pdf 是一段二进制数据，把它写入选择的文件\n            await writeFile(result.filePath, pdf);\n        }\n    } finally {\n        // 无论成功还是失败，都关闭隐藏窗口\n        reportWindow.close();\n    }\n}\n","electron/main.js","js",[1651,1828,1829,1873,1897,1925,1931,1948,1954,1991,1995,2003,2009,2052,2057,2063,2094,2108,2125,2135,2140,2146,2170,2187,2238,2247,2252,2258,2283,2289,2315,2321,2332,2338,2353,2359],{"__ignoreMap":1649},[1654,1830,1831,1834,1837,1840,1843,1846,1849,1852,1856,1859,1862,1865,1867,1870],{"class":1656,"line":1657},[1654,1832,1833],{"class":1668},"const",[1654,1835,1836],{"class":1660}," {",[1654,1838,1839],{"class":1734}," BrowserWindow",[1654,1841,1842],{"class":1660},",",[1654,1844,1845],{"class":1734}," dialog ",[1654,1847,1848],{"class":1660},"}",[1654,1850,1851],{"class":1660}," =",[1654,1853,1855],{"class":1854},"swgpB"," require",[1654,1857,1858],{"class":1734},"(",[1654,1860,1861],{"class":1660},"'",[1654,1863,1864],{"class":1692},"electron/main",[1654,1866,1861],{"class":1660},[1654,1868,1869],{"class":1734},")",[1654,1871,1872],{"class":1660},";\n",[1654,1874,1875,1877,1880,1882,1884,1886,1888,1891,1893,1895],{"class":1656,"line":1675},[1654,1876,1833],{"class":1668},[1654,1878,1879],{"class":1734}," path ",[1654,1881,1686],{"class":1660},[1654,1883,1855],{"class":1854},[1654,1885,1858],{"class":1734},[1654,1887,1861],{"class":1660},[1654,1889,1890],{"class":1692},"node:path",[1654,1892,1861],{"class":1660},[1654,1894,1869],{"class":1734},[1654,1896,1872],{"class":1660},[1654,1898,1899,1901,1903,1906,1908,1910,1912,1914,1916,1919,1921,1923],{"class":1656,"line":1700},[1654,1900,1833],{"class":1668},[1654,1902,1836],{"class":1660},[1654,1904,1905],{"class":1734}," writeFile ",[1654,1907,1848],{"class":1660},[1654,1909,1851],{"class":1660},[1654,1911,1855],{"class":1854},[1654,1913,1858],{"class":1734},[1654,1915,1861],{"class":1660},[1654,1917,1918],{"class":1692},"node:fs/promises",[1654,1920,1861],{"class":1660},[1654,1922,1869],{"class":1734},[1654,1924,1872],{"class":1660},[1654,1926,1927],{"class":1656,"line":1711},[1654,1928,1930],{"emptyLinePlaceholder":1929},true,"\n",[1654,1932,1933,1936,1939,1942,1945],{"class":1656,"line":1722},[1654,1934,1935],{"class":1668},"async",[1654,1937,1938],{"class":1668}," function",[1654,1940,1941],{"class":1854}," exportReport",[1654,1943,1944],{"class":1660},"()",[1654,1946,1947],{"class":1660}," {\n",[1654,1949,1950],{"class":1656,"line":1745},[1654,1951,1953],{"class":1952},"syuKq","    // 1. 创建隐藏窗口，用户不会看到这个窗口\n",[1654,1955,1956,1959,1962,1964,1967,1969,1971,1974,1977,1980,1984,1987,1989],{"class":1656,"line":1763},[1654,1957,1958],{"class":1668},"    const",[1654,1960,1961],{"class":1734}," reportWindow",[1654,1963,1851],{"class":1660},[1654,1965,1966],{"class":1660}," new",[1654,1968,1839],{"class":1854},[1654,1970,1858],{"class":1664},[1654,1972,1973],{"class":1660},"{",[1654,1975,1976],{"class":1664}," show",[1654,1978,1979],{"class":1660},":",[1654,1981,1983],{"class":1982},"sPKOg"," false",[1654,1985,1986],{"class":1660}," }",[1654,1988,1869],{"class":1664},[1654,1990,1872],{"class":1660},[1654,1992,1993],{"class":1656,"line":1773},[1654,1994,1930],{"emptyLinePlaceholder":1929},[1654,1996,1997,2001],{"class":1656,"line":1783},[1654,1998,2000],{"class":1999},"s8pZq","    try",[1654,2002,1947],{"class":1660},[1654,2004,2006],{"class":1656,"line":2005},10,[1654,2007,2008],{"class":1952},"        // 2. 让隐藏窗口加载报告页面\n",[1654,2010,2012,2015,2017,2020,2023,2025,2028,2030,2033,2035,2038,2040,2043,2045,2047,2050],{"class":1656,"line":2011},11,[1654,2013,2014],{"class":1999},"        await",[1654,2016,1961],{"class":1734},[1654,2018,2019],{"class":1660},".",[1654,2021,2022],{"class":1854},"loadFile",[1654,2024,1858],{"class":1664},[1654,2026,2027],{"class":1734},"path",[1654,2029,2019],{"class":1660},[1654,2031,2032],{"class":1854},"join",[1654,2034,1858],{"class":1664},[1654,2036,2037],{"class":1734},"__dirname",[1654,2039,1842],{"class":1660},[1654,2041,2042],{"class":1660}," '",[1654,2044,1647],{"class":1692},[1654,2046,1861],{"class":1660},[1654,2048,2049],{"class":1664},"))",[1654,2051,1872],{"class":1660},[1654,2053,2055],{"class":1656,"line":2054},12,[1654,2056,1930],{"emptyLinePlaceholder":1929},[1654,2058,2060],{"class":1656,"line":2059},13,[1654,2061,2062],{"class":1952},"        // 3. 把报告页面生成 PDF 数据\n",[1654,2064,2066,2069,2072,2074,2077,2079,2081,2084,2086,2089,2091],{"class":1656,"line":2065},14,[1654,2067,2068],{"class":1668},"        const",[1654,2070,2071],{"class":1734}," pdf",[1654,2073,1851],{"class":1660},[1654,2075,2076],{"class":1999}," await",[1654,2078,1961],{"class":1734},[1654,2080,2019],{"class":1660},[1654,2082,2083],{"class":1734},"webContents",[1654,2085,2019],{"class":1660},[1654,2087,2088],{"class":1854},"printToPDF",[1654,2090,1858],{"class":1664},[1654,2092,2093],{"class":1660},"{\n",[1654,2095,2097,2100,2102,2105],{"class":1656,"line":2096},15,[1654,2098,2099],{"class":1664},"            printBackground",[1654,2101,1979],{"class":1660},[1654,2103,2104],{"class":1982}," true",[1654,2106,2107],{"class":1660},",\n",[1654,2109,2111,2114,2116,2118,2121,2123],{"class":1656,"line":2110},16,[1654,2112,2113],{"class":1664},"            pageSize",[1654,2115,1979],{"class":1660},[1654,2117,2042],{"class":1660},[1654,2119,2120],{"class":1692},"A4",[1654,2122,1861],{"class":1660},[1654,2124,2107],{"class":1660},[1654,2126,2128,2131,2133],{"class":1656,"line":2127},17,[1654,2129,2130],{"class":1660},"        }",[1654,2132,1869],{"class":1664},[1654,2134,1872],{"class":1660},[1654,2136,2138],{"class":1656,"line":2137},18,[1654,2139,1930],{"emptyLinePlaceholder":1929},[1654,2141,2143],{"class":1656,"line":2142},19,[1654,2144,2145],{"class":1952},"        // 4. 打开系统保存对话框，让用户选择文件位置\n",[1654,2147,2149,2151,2154,2156,2158,2161,2163,2166,2168],{"class":1656,"line":2148},20,[1654,2150,2068],{"class":1668},[1654,2152,2153],{"class":1734}," result",[1654,2155,1851],{"class":1660},[1654,2157,2076],{"class":1999},[1654,2159,2160],{"class":1734}," dialog",[1654,2162,2019],{"class":1660},[1654,2164,2165],{"class":1854},"showSaveDialog",[1654,2167,1858],{"class":1664},[1654,2169,2093],{"class":1660},[1654,2171,2173,2176,2178,2180,2183,2185],{"class":1656,"line":2172},21,[1654,2174,2175],{"class":1664},"            defaultPath",[1654,2177,1979],{"class":1660},[1654,2179,2042],{"class":1660},[1654,2181,2182],{"class":1692},"资料分析报告.pdf",[1654,2184,1861],{"class":1660},[1654,2186,2107],{"class":1660},[1654,2188,2190,2193,2195,2198,2200,2203,2205,2207,2210,2212,2214,2217,2219,2221,2223,2226,2228,2231,2233,2236],{"class":1656,"line":2189},22,[1654,2191,2192],{"class":1664},"            filters",[1654,2194,1979],{"class":1660},[1654,2196,2197],{"class":1664}," [",[1654,2199,1973],{"class":1660},[1654,2201,2202],{"class":1664}," name",[1654,2204,1979],{"class":1660},[1654,2206,2042],{"class":1660},[1654,2208,2209],{"class":1692},"PDF 文件",[1654,2211,1861],{"class":1660},[1654,2213,1842],{"class":1660},[1654,2215,2216],{"class":1664}," extensions",[1654,2218,1979],{"class":1660},[1654,2220,2197],{"class":1664},[1654,2222,1861],{"class":1660},[1654,2224,2225],{"class":1692},"pdf",[1654,2227,1861],{"class":1660},[1654,2229,2230],{"class":1664},"] ",[1654,2232,1848],{"class":1660},[1654,2234,2235],{"class":1664},"]",[1654,2237,2107],{"class":1660},[1654,2239,2241,2243,2245],{"class":1656,"line":2240},23,[1654,2242,2130],{"class":1660},[1654,2244,1869],{"class":1664},[1654,2246,1872],{"class":1660},[1654,2248,2250],{"class":1656,"line":2249},24,[1654,2251,1930],{"emptyLinePlaceholder":1929},[1654,2253,2255],{"class":1656,"line":2254},25,[1654,2256,2257],{"class":1952},"        // 用户没有取消时，result.filePath 才是有效的保存路径\n",[1654,2259,2261,2264,2267,2270,2273,2275,2278,2281],{"class":1656,"line":2260},26,[1654,2262,2263],{"class":1999},"        if",[1654,2265,2266],{"class":1664}," (",[1654,2268,2269],{"class":1660},"!",[1654,2271,2272],{"class":1734},"result",[1654,2274,2019],{"class":1660},[1654,2276,2277],{"class":1734},"canceled",[1654,2279,2280],{"class":1664},") ",[1654,2282,2093],{"class":1660},[1654,2284,2286],{"class":1656,"line":2285},27,[1654,2287,2288],{"class":1952},"            // 5. pdf 是一段二进制数据，把它写入选择的文件\n",[1654,2290,2292,2295,2298,2300,2302,2304,2307,2309,2311,2313],{"class":1656,"line":2291},28,[1654,2293,2294],{"class":1999},"            await",[1654,2296,2297],{"class":1854}," writeFile",[1654,2299,1858],{"class":1664},[1654,2301,2272],{"class":1734},[1654,2303,2019],{"class":1660},[1654,2305,2306],{"class":1734},"filePath",[1654,2308,1842],{"class":1660},[1654,2310,2071],{"class":1734},[1654,2312,1869],{"class":1664},[1654,2314,1872],{"class":1660},[1654,2316,2318],{"class":1656,"line":2317},29,[1654,2319,2320],{"class":1660},"        }\n",[1654,2322,2324,2327,2330],{"class":1656,"line":2323},30,[1654,2325,2326],{"class":1660},"    }",[1654,2328,2329],{"class":1999}," finally",[1654,2331,1947],{"class":1660},[1654,2333,2335],{"class":1656,"line":2334},31,[1654,2336,2337],{"class":1952},"        // 无论成功还是失败，都关闭隐藏窗口\n",[1654,2339,2341,2344,2346,2349,2351],{"class":1656,"line":2340},32,[1654,2342,2343],{"class":1734},"        reportWindow",[1654,2345,2019],{"class":1660},[1654,2347,2348],{"class":1854},"close",[1654,2350,1944],{"class":1664},[1654,2352,1872],{"class":1660},[1654,2354,2356],{"class":1656,"line":2355},33,[1654,2357,2358],{"class":1660},"    }\n",[1654,2360,2362],{"class":1656,"line":2361},34,[1654,2363,2364],{"class":1660},"}\n",[1629,2366,2367],{},"这段函数不会自己执行，需要在用户点击“导出报告”时调用：",[1643,2369,2371],{"className":1823,"code":2370,"filename":1825,"language":1826,"meta":1649,"style":1649},"await exportReport();\n",[1651,2372,2373],{"__ignoreMap":1649},[1654,2374,2375,2378,2380,2382],{"class":1656,"line":1657},[1654,2376,2377],{"class":1999},"await",[1654,2379,1941],{"class":1854},[1654,2381,1944],{"class":1734},[1654,2383,1872],{"class":1660},[1629,2385,2386,2389,2390,2393,2394,2397],{},[1651,2387,2388],{},"printToPDF()"," 返回的不是文件路径，而是 PDF 的二进制数据；",[1651,2391,2392],{},"showSaveDialog()"," 返回用户选择的路径；",[1651,2395,2396],{},"writeFile()"," 才真正把 PDF 保存到磁盘。",[1629,2399,2400,2401,2403],{},"如果报告页面包含网络字体或图片，要在调用 ",[1651,2402,2388],{}," 前等待它们加载完成，否则生成的 PDF 可能缺少字体或图片。",[2405,2406,2407],"warning",{},[1629,2408,2409],{},"PDF 页面涉及字体、图片和平台打印实现，Windows、macOS 和 Linux 的结果可能略有差异，发布前要在目标系统实际检查。",[1633,2411],{},[1624,2413,2415],{"id":2414},"小节总结","🧾 小节总结",[2417,2418,2419,2422,2427,2430,2433],"ul",{},[1803,2420,2421],{},"PDF 导出应准备适合打印的独立页面。",[1803,2423,2424,2426],{},[1651,2425,2088],{}," 在主进程中调用。",[1803,2428,2429],{},"导出前要等待字体和图片准备完成。",[1803,2431,2432],{},"保存文件仍然要通过系统保存对话框。",[1803,2434,2435],{},"导出窗口完成后要及时关闭。",[1624,2437,2439],{"id":2438},"知识问答","❓ 知识问答",[1629,2441,2442],{},[2443,2444,2445],"strong",{},"Q1：为什么不直接打印当前窗口？",[1629,2447,2448],{},"A：当前窗口通常包含按钮和筛选器，报告页面更容易控制内容和样式。",[1629,2450,2451],{},[2443,2452,2453],{},"Q2：PDF 导出失败时应该怎么办？",[1629,2455,2456,2457,2460],{},"A：捕获异常，给页面返回明确错误，并确保在 ",[1651,2458,2459],{},"finally"," 中关闭隐藏窗口。",[1624,2462,2464],{"id":2463},"小练习","🧪 小练习",[1629,2466,2467],{},"给报告页面增加一个表格，并在导出配置中打开背景打印：",[1643,2469,2471],{"className":1823,"code":2470,"language":1826,"meta":1649,"style":1649},"const pdf = await reportWindow.webContents.printToPDF({\n    // 请在这里编写代码\n});\n",[1651,2472,2473,2498,2503],{"__ignoreMap":1649},[1654,2474,2475,2477,2480,2482,2484,2486,2488,2490,2492,2494,2496],{"class":1656,"line":1657},[1654,2476,1833],{"class":1668},[1654,2478,2479],{"class":1734}," pdf ",[1654,2481,1686],{"class":1660},[1654,2483,2076],{"class":1999},[1654,2485,1961],{"class":1734},[1654,2487,2019],{"class":1660},[1654,2489,2083],{"class":1734},[1654,2491,2019],{"class":1660},[1654,2493,2088],{"class":1854},[1654,2495,1858],{"class":1734},[1654,2497,2093],{"class":1660},[1654,2499,2500],{"class":1656,"line":1675},[1654,2501,2502],{"class":1952},"    // 请在这里编写代码\n",[1654,2504,2505,2507,2509],{"class":1656,"line":1700},[1654,2506,1848],{"class":1660},[1654,2508,1869],{"class":1734},[1654,2510,1872],{"class":1660},[1629,2512,2513],{},"🎉 现在你已经能把一个独立页面交付成 PDF 文件了。",[2515,2516,2517],"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 .sd2Uz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .s50WR, html code.shiki .s50WR{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sIEYB, html code.shiki .sIEYB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .sndM8, html code.shiki .sndM8{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}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 .swgpB, html code.shiki .swgpB{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}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 .sPKOg, html code.shiki .sPKOg{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}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}",{"title":1649,"searchDepth":1675,"depth":1675,"links":2519},[2520,2521,2522,2523,2524,2525],{"id":1626,"depth":1675,"text":1627},{"id":1637,"depth":1675,"text":1638},{"id":1794,"depth":1675,"text":1795},{"id":2414,"depth":1675,"text":2415},{"id":2438,"depth":1675,"text":2439},{"id":2463,"depth":1675,"text":2464},"准备独立报告页面并使用 printToPDF 生成可保存的 PDF 文件。","md",null,{},{"title":1592},{"title":1619,"description":2526},"PARLZx5RLA",[2534,2536],{"title":1588,"path":1589,"stem":1590,"description":2535,"children":-1},"识别主进程阻塞，使用合适的后台任务方式，并掌握基础的资源清理方法。",{"title":1602,"path":1603,"stem":1604,"description":2537,"children":-1},"区分 package.json 和 forge.config.js 的职责，生成 Electron 应用并接入基础自动更新流程。",1789632409238]