{"id":102049,"date":"2026-09-08T03:43:11","date_gmt":"2026-09-07T19:43:11","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/102049.html"},"modified":"2026-09-08T03:43:11","modified_gmt":"2026-09-07T19:43:11","slug":"whatscanvas%e6%95%99%e7%a8%8b-%e7%ac%ac%e4%b8%80%e7%ab%a0%ef%bc%9a%e7%8e%af%e5%a2%83%e6%90%ad%e5%bb%ba%e4%b8%8e%e7%ac%ac%e4%b8%80%e5%b8%a7","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/102049.html","title":{"rendered":"WhatsCanvas\u6559\u7a0b-\u7b2c\u4e00\u7ae0\uff1a\u73af\u5883\u642d\u5efa\u4e0e\u7b2c\u4e00\u5e27"},"content":{"rendered":"<h2>WhatsCanvas\u6559\u7a0b-\u7b2c\u4e00\u7ae0&#xff1a;\u73af\u5883\u642d\u5efa\u4e0e\u7b2c\u4e00\u5e27<\/h2>\n<p>WhatsCanvas\u662f\u4e00\u4e2a\u91c7\u7528C&#043;&#043;17\u7f16\u5199\u7684\u3001\u9762\u5411\u539f\u751f\u5e94\u7528\u7684\u53ef\u5d4c\u5165\u5f0f\u3001\u9ad8\u8d28\u91cf\u3001\u8de8\u5e73\u53f0\u30012D \u6e32\u67d3\u5e93\u3002 \u4ed3\u5e93\u5730\u5740&#xff1a;https:\/\/github.com\/ClarkWain\/WhatsCanvas . \u672c\u7ae0\u76ee\u6807&#xff1a;\u4ece\u96f6\u5f00\u59cb\u914d\u7f6e WhatsCanvas \u5f00\u53d1\u73af\u5883&#xff0c;\u7f16\u5199\u7b2c\u4e00\u4e2a\u7a0b\u5e8f&#xff0c;\u79bb\u5c4f\u6e32\u67d3\u4e00\u5e27\u5e76\u8f93\u51fa\u56fe\u7247\u6587\u4ef6\u3002<\/p>\n<hr \/>\n<h3>1.1 WhatsCanvas \u662f\u4ec0\u4e48<\/h3>\n<p>https:\/\/github.com\/ClarkWain\/WhatsCanvas<\/p>\n<p>WhatsCanvas \u662f\u4e00\u4e2a C&#043;&#043;17 \u7f16\u5199\u7684 2D \u6e32\u67d3\u5e93&#xff0c;\u5b9a\u4f4d\u4ecb\u4e8e NanoVG&#xff08;\u8f7b\u91cf\u4f46\u529f\u80fd\u6709\u9650&#xff09;\u548c Skia&#xff08;\u5f3a\u5927\u4f46\u4f53\u91cf\u5e9e\u5927&#xff09;\u4e4b\u95f4\u3002\u5b83\u63d0\u4f9b\u7c7b\u4f3c HTML Canvas \u7684 API \u98ce\u683c&#xff1a;<\/p>\n<ul>\n<li>Canvas \u2014\u2014 \u7ed8\u5236\u8868\u9762&#xff0c;\u7ba1\u7406\u5e27\u7684\u5f00\u59cb\/\u7ed3\u675f<\/li>\n<li>Paint \u2014\u2014 \u753b\u7b14\u5c5e\u6027&#xff08;\u989c\u8272\u3001\u6e10\u53d8\u3001\u63cf\u8fb9\u7b49&#xff09;<\/li>\n<li>Path \u2014\u2014 2D \u51e0\u4f55\u8def\u5f84<\/li>\n<\/ul>\n<p>\u652f\u6301 5 \u79cd\u6e32\u67d3\u540e\u7aef&#xff1a;Software&#xff08;\u7eaf CPU&#xff09;\u3001OpenGL\u3001OpenGL ES\u3001Vulkan\u3001Metal\u3002<\/p>\n<hr \/>\n<h3>1.2 \u83b7\u53d6 WhatsCanvas<\/h3>\n<p>\u6709\u4e09\u79cd\u4e3b\u8981\u65b9\u5f0f&#xff1a;<\/p>\n<h4>\u65b9\u5f0f\u4e00&#xff1a;GitHub Release \u9884\u7f16\u8bd1\u5305&#xff08;\u63a8\u8350\u65b0\u624b&#xff09;<\/h4>\n<p>\u4ece Releases \u4e0b\u8f7d\u5bf9\u5e94\u5e73\u53f0\u7684\u5305&#xff1a;<\/p>\n<p>\u684c\u9762\u7aef&#xff1a;<\/p>\n<ul>\n<li>Windows: whatscanvas-win64-release-1.0.0.zip<\/li>\n<li>Linux: whatscanvas-linux-x64-release-1.0.0.zip<\/li>\n<li>macOS: whatscanvas-macos-universal-release-1.0.0.zip<\/li>\n<\/ul>\n<p>\u684c\u9762\u5305\u89e3\u538b\u540e\u76ee\u5f55\u7ed3\u6784&#xff1a;<\/p>\n<p>whatscanvas-win64-release-1.0.0\/<br \/>\n\u251c\u2500\u2500 include\/wsc\/          # \u5934\u6587\u4ef6<br \/>\n\u251c\u2500\u2500 lib\/                  # \u9759\u6001\/\u52a8\u6001\u5e93<br \/>\n\u251c\u2500\u2500 bin\/                  # DLL&#xff08;Windows shared \u6784\u5efa&#xff09;<br \/>\n\u2514\u2500\u2500 lib\/cmake\/WhatsCanvas\/ # CMake \u914d\u7f6e\u6587\u4ef6<\/p>\n<p>\u79fb\u52a8\u7aef&#xff1a;<\/p>\n<ul>\n<li>Android: whatscanvas-android-release-1.0.0.aar\n<ul>\n<li>Prefab AAR&#xff0c;\u5185\u542b\u516c\u5f00\u5934\u6587\u4ef6\u548c armeabi-v7a\u3001arm64-v8a\u3001x86_64 \u4e09\u5957 OpenGL ES \u5e93<\/li>\n<li>\u901a\u8fc7 Gradle \u5f15\u5165&#xff0c;\u8be6\u89c1 Android \u63a5\u5165\u6307\u5357<\/li>\n<\/ul>\n<\/li>\n<li>iOS: whatscanvas-ios-release-1.0.0.zip\n<ul>\n<li>\u9759\u6001 Metal\/CoreText XCFramework&#xff0c;\u5305\u542b arm64 \u771f\u673a\u5207\u7247\u548c arm64\/x86_64 \u6a21\u62df\u5668\u5207\u7247<\/li>\n<li>\u62d6\u5165 Xcode \u9879\u76ee Frameworks \u4f7f\u7528&#xff0c;\u8be6\u89c1 iOS Build Notes<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>\u65b9\u5f0f\u4e8c&#xff1a;\u4ece\u6e90\u7801\u6784\u5efa<\/h4>\n<p><span class=\"token function\">git<\/span> clone <span class=\"token parameter variable\">&#8211;recursive<\/span> https:\/\/github.com\/ClarkWain\/WhatsCanvas.git<br \/>\n<span class=\"token builtin class-name\">cd<\/span> WhatsCanvas<\/p>\n<p><span class=\"token comment\"># Windows (VS 2022)<\/span><br \/>\nbuild.bat <span class=\"token parameter variable\">&#8211;release<\/span> <span class=\"token parameter variable\">&#8211;package<\/span> &#8211;no-run<\/p>\n<p><span class=\"token comment\"># Linux \/ macOS<\/span><br \/>\n<span class=\"token function\">sh<\/span> .\/build.sh <span class=\"token parameter variable\">&#8211;release<\/span> <span class=\"token parameter variable\">&#8211;package<\/span> &#8211;no-run<\/p>\n<p>\u6784\u5efa\u5b8c\u6210\u540e&#xff0c;\u5b89\u88c5\u5305\u4f4d\u4e8e out\/package\/Release\/\u3002<\/p>\n<hr \/>\n<h3>1.3 \u521b\u5efa\u7b2c\u4e00\u4e2a\u9879\u76ee<\/h3>\n<p>\u521b\u5efa\u5982\u4e0b\u9879\u76ee\u7ed3\u6784&#xff1a;<\/p>\n<p>my_first_wsc\/<br \/>\n\u251c\u2500\u2500 CMakeLists.txt<br \/>\n\u2514\u2500\u2500 main.cpp<\/p>\n<h4>CMakeLists.txt<\/h4>\n<p>cmake_minimum_required(VERSION 3.16)<br \/>\nproject(MyFirstWSC LANGUAGES CXX)<\/p>\n<p>set(CMAKE_CXX_STANDARD 17)<br \/>\nset(CMAKE_CXX_STANDARD_REQUIRED ON)<\/p>\n<p># \u67e5\u627e WhatsCanvas<br \/>\nfind_package(WhatsCanvas 1.0.0 CONFIG REQUIRED)<\/p>\n<p>add_executable(MyFirstWSC main.cpp)<br \/>\ntarget_link_libraries(MyFirstWSC PRIVATE WhatsCanvas::Software)<\/p>\n<h4>main.cpp<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;wsc\/wsc.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u521b\u5efa Canvas&#xff1a;\u4f7f\u7528 Software \u540e\u7aef&#xff0c;\u5927\u5c0f 256&#215;256<\/span><br \/>\n    <span class=\"token keyword\">auto<\/span> canvas <span class=\"token operator\">&#061;<\/span> wsc<span class=\"token double-colon punctuation\">::<\/span><span class=\"token class-name\">Canvas<\/span><span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">create<\/span><span class=\"token punctuation\">(<\/span>wsc<span class=\"token double-colon punctuation\">::<\/span>Canvas<span class=\"token double-colon punctuation\">::<\/span>Backend<span class=\"token double-colon punctuation\">::<\/span>Software<span class=\"token punctuation\">,<\/span> <span class=\"token number\">256<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">256<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>canvas <span class=\"token operator\">||<\/span> <span class=\"token operator\">!<\/span>canvas<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">initializeContext<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u5f00\u59cb\u4e00\u5e27<\/span><br \/>\n    canvas<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">beginFrame<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u521b\u5efa\u753b\u7b14&#xff1a;\u84dd\u8272\u586b\u5145<\/span><br \/>\n    wsc<span class=\"token double-colon punctuation\">::<\/span>Paint fill<span class=\"token punctuation\">;<\/span><br \/>\n    fill<span class=\"token punctuation\">.<\/span><span class=\"token function\">setColor<\/span><span class=\"token punctuation\">(<\/span>wsc<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">Color<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">120<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">240<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">255<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ RGBA<\/span><br \/>\n    fill<span class=\"token punctuation\">.<\/span><span class=\"token function\">setAntiAlias<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u7ed8\u5236\u5706\u89d2\u77e9\u5f62<\/span><br \/>\n    canvas<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">drawRoundRect<\/span><span class=\"token punctuation\">(<\/span>wsc<span class=\"token double-colon punctuation\">::<\/span><span class=\"token function\">RectF<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">40<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">176<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">176<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">24.0f<\/span><span class=\"token punctuation\">,<\/span> fill<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 5. \u7ed3\u675f\u5e27<\/span><br \/>\n    canvas<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">endFrame<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 6. \u8f93\u51fa\u5230 PPM \u6587\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> canvas<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">savePixelsPPM<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;first.ppm&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">?<\/span> <span class=\"token number\">0<\/span> <span class=\"token operator\">:<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<hr \/>\n<h3>1.4 \u7f16\u8bd1\u4e0e\u8fd0\u884c<\/h3>\n<p><span class=\"token comment\"># \u914d\u7f6e&#xff08;\u5c06 CMAKE_PREFIX_PATH \u6307\u5411\u4f60\u7684 WhatsCanvas \u5b89\u88c5\u76ee\u5f55&#xff09;<\/span><br \/>\ncmake <span class=\"token parameter variable\">-S<\/span> <span class=\"token builtin class-name\">.<\/span> <span class=\"token parameter variable\">-B<\/span> build <span class=\"token parameter variable\">-DCMAKE_BUILD_TYPE<\/span><span class=\"token operator\">&#061;<\/span>Release <span class=\"token punctuation\">\\\\<\/span><br \/>\n  <span class=\"token parameter variable\">-DCMAKE_PREFIX_PATH<\/span><span class=\"token operator\">&#061;<\/span>\/path\/to\/whatscanvas-win64-release-1.0.0<\/p>\n<p><span class=\"token comment\"># \u7f16\u8bd1<\/span><br \/>\ncmake <span class=\"token parameter variable\">&#8211;build<\/span> build <span class=\"token parameter variable\">&#8211;config<\/span> Release<\/p>\n<p><span class=\"token comment\"># \u8fd0\u884c<\/span><br \/>\n.\/build\/Release\/MyFirstWSC    <span class=\"token comment\"># Windows<\/span><br \/>\n.\/build\/MyFirstWSC            <span class=\"token comment\"># Linux\/macOS<\/span><\/p>\n<p>\u8fd0\u884c\u540e\u5f53\u524d\u76ee\u5f55\u4f1a\u751f\u6210 first.ppm&#xff0c;\u7528\u652f\u6301 PPM \u683c\u5f0f\u7684\u56fe\u7247\u67e5\u770b\u5668\u6253\u5f00\u5373\u53ef\u770b\u5230\u4e00\u4e2a\u84dd\u8272\u5706\u89d2\u77e9\u5f62\u3002<\/p>\n<p>\u63d0\u793a&#xff1a;Windows \u4e0a\u5982\u679c\u4f7f\u7528\u7684\u662f shared \u6784\u5efa\u7684\u9884\u7f16\u8bd1\u5305&#xff0c;\u8fd0\u884c\u524d\u9700\u5c06 bin\/ \u76ee\u5f55\u52a0\u5165 PATH&#xff0c;\u6216\u5c06 DLL \u590d\u5236\u5230 exe \u65c1\u8fb9&#xff1a;<\/p>\n<p> set &#034;PATH&#061;C:\\\\path\\\\to\\\\whatscanvas\\\\bin;%PATH%&#034;<br \/>\nbuild\\\\Release\\\\MyFirstWSC.exe<\/p>\n<hr \/>\n<h3>1.5 \u4ee3\u7801\u89e3\u6790<\/h3>\n<p>\u8ba9\u6211\u4eec\u9010\u884c\u7406\u89e3\u8fd9 24 \u884c\u4ee3\u7801&#xff1a;<\/p>\n<table>\n<tr>\u6b65\u9aa4\u4ee3\u7801\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td align=\"center\">1<\/td>\n<td>Canvas::create(Backend::Software, 256, 256)<\/td>\n<td>\u521b\u5efa\u4e00\u4e2a 256&#215;256 \u7684\u79bb\u5c4f Canvas&#xff0c;\u4f7f\u7528\u7eaf CPU \u6e32\u67d3<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">2<\/td>\n<td>canvas-&gt;initializeContext()<\/td>\n<td>\u521d\u59cb\u5316\u6e32\u67d3\u4e0a\u4e0b\u6587&#xff08;Software \u540e\u7aef\u65e0\u9700 GPU&#xff09;<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">3<\/td>\n<td>canvas-&gt;beginFrame()<\/td>\n<td>\u5f00\u59cb\u5f55\u5236\u4e00\u5e27\u7684\u7ed8\u5236\u547d\u4ee4<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">4<\/td>\n<td>fill.setColor(&#8230;)<\/td>\n<td>\u8bbe\u7f6e\u753b\u7b14\u989c\u8272\u4e3a\u84dd\u8272 (R&#061;40, G&#061;120, B&#061;240, A&#061;255)<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">5<\/td>\n<td>fill.setAntiAlias(true)<\/td>\n<td>\u542f\u7528\u6297\u952f\u9f7f&#xff0c;\u8fb9\u7f18\u66f4\u5e73\u6ed1<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">6<\/td>\n<td>drawRoundRect(RectF, radius, paint)<\/td>\n<td>\u7ed8\u5236\u5706\u89d2\u77e9\u5f62&#xff0c;\u5706\u89d2\u534a\u5f84 24px<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">7<\/td>\n<td>canvas-&gt;endFrame()<\/td>\n<td>\u7ed3\u675f\u5e27&#xff0c;\u6267\u884c\u6240\u6709\u7ed8\u5236\u547d\u4ee4<\/td>\n<\/tr>\n<tr>\n<td align=\"center\">8<\/td>\n<td>savePixelsPPM(&#034;first.ppm&#034;)<\/td>\n<td>\u5c06\u50cf\u7d20\u56de\u8bfb\u5e76\u4fdd\u5b58\u4e3a PPM \u683c\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u5e27\u7684\u751f\u547d\u5468\u671f<\/h4>\n<p>WhatsCanvas \u7684\u7ed8\u5236\u9075\u5faa \u5e27\u5faa\u73af \u6a21\u5f0f&#xff1a;<\/p>\n<p>beginFrame() \u2192 \u7ed8\u5236\u547d\u4ee4 \u2192 endFrame() \u2192 [present() \u6216 readPixels()]<\/p>\n<ul>\n<li>\u79bb\u5c4f\u6e32\u67d3&#xff08;\u672c\u7ae0&#xff09;&#xff1a;endFrame() \u4e4b\u540e\u7528 savePixelsPPM() \u6216 readPixelsRGBA() \u83b7\u53d6\u50cf\u7d20<\/li>\n<li>\u7a97\u53e3\u6e32\u67d3&#xff08;\u7b2c 9 \u7ae0&#xff09;&#xff1a;endFrame() \u4e4b\u540e\u8c03\u7528 present() \u663e\u793a\u5230\u5c4f\u5e55<\/li>\n<\/ul>\n<hr \/>\n<h3>1.6 \u5173\u4e8e Software \u540e\u7aef<\/h3>\n<p>Software \u540e\u7aef\u662f WhatsCanvas \u7684 CPU \u53c2\u8003\u5b9e\u73b0&#xff1a;<\/p>\n<ul>\n<li>\u65e0\u9700 GPU&#xff1a;\u4e0d\u4f9d\u8d56 OpenGL \/ Vulkan \/ Metal<\/li>\n<li>\u786e\u5b9a\u6027\u8f93\u51fa&#xff1a;\u76f8\u540c\u8f93\u5165\u5728\u4e0d\u540c\u673a\u5668\u4e0a\u4ea7\u751f\u76f8\u540c\u50cf\u7d20<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u5355\u5143\u6d4b\u8bd5\u3001CI \u73af\u5883\u3001\u79bb\u5c4f\u56fe\u7247\u751f\u6210\u3001\u622a\u56fe\u5bf9\u6bd4<\/li>\n<li>\u9650\u5236&#xff1a;\u6027\u80fd\u4f4e\u4e8e GPU \u540e\u7aef&#xff0c;\u4e0d\u9002\u5408\u5b9e\u65f6\u6e32\u67d3\u5927\u91cf\u5185\u5bb9<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u5b66\u4e60\u548c\u9a8c\u8bc1\u6765\u8bf4&#xff0c;Software \u540e\u7aef\u662f\u6700\u4f73\u8d77\u70b9\u3002<\/p>\n<hr \/>\n<h3>1.7 \u5c0f\u7ed3<\/h3>\n<p>\u672c\u7ae0\u5b8c\u6210\u4e86&#xff1a;<\/p>\n<ul>\n<li class=\"task-list-item\"> \u4e86\u89e3 WhatsCanvas \u7684\u5b9a\u4f4d\u548c\u6838\u5fc3\u6982\u5ff5<\/li>\n<li class=\"task-list-item\"> \u83b7\u53d6\u5e76\u914d\u7f6e WhatsCanvas \u5e93<\/li>\n<li class=\"task-list-item\"> \u7f16\u5199\u7b2c\u4e00\u4e2a\u7a0b\u5e8f\u5e76\u6210\u529f\u6e32\u67d3<\/li>\n<li class=\"task-list-item\"> \u7406\u89e3\u5e27\u751f\u547d\u5468\u671f<\/li>\n<\/ul>\n<p>\u4e0b\u4e00\u7ae0&#xff1a;\u57fa\u7840\u56fe\u5f62\u7ed8\u5236 \u2014\u2014 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