weixin_46082075: <!DOCYTPE html> <html> <body> <canvas height="1000" width="1000"> 你的浏览器不支持 HTML 5 </canvas> </body> <head> <meta charset="utf-8" /> <title>在同一个 canvas 元素中绘制不同颜色的图画</title> <script> var c = ("myCanvas") var cxt = ("2d") = "#FF00FF" (100, 100, 50, 0, * 2, true) () = "#FF0000" (200, 200, 50, 0, * 2, true) () = "#FFFF00" (300, 300, 50, 0, * 2, true) () = "#000000" (400, 400, 50, 0, * 2, true) () </script> </head> </html>
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在同一个canvas中绘制多个图形