qq_佛祖也Crazy_0
2018-08-12 22:51
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" type="text/css" href="reset.css"> </head> <body> <canvas id="canvas" style="border: 1px solid #aaa;display: block;margin:50px auto"> </canvas> <script type="text/javascript"> var tangram =[ {p:[{x:0,y:0},{x:800,y:0},{x:400,y:400}],color:"#caff67"}, {p:[{x:0,y:0},{x:400,y:400},{x:0,y:800}],color:"#67becf"}, {p:[{x:800,y:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:"#ef3d61"}, {p:[{x:600,y:200},{x:600,y:600},{x:400,y:400}],color:"#f9f51a"}, {p:[{x:400,y:400},{x:600,y:600},{x:400,y:800},{x:200,y:600}],color:"#a594c0"}, {p:[{x:200,y:60},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"}, {p:[{x:800,y:0},{x:400,y:800},{x:400,y:800}],color:"#f6ca29"}, ]; window.onload = function () { var canvas = document.getElementById("canvas"); var context = canvas.getContext("2d"); canvas.width = 800; canvas.height = 800; for (var i = 0; i < tangram.length; i++) { draw(tangram[i], context); } } function draw(piece,cxt) { cxt.beginPath(); cxt.moveTo(piece.p[0].x,piece.p[0].y); for( var i = 1 ;i<piece.length;i++){ cxt.lineTo( piece.p[i].x,piece.p[i].y); } cxt.closePath(); cxt.fillStyle = piece.color; cxt.fill(); } </script> </body> </html>
i<piece.p.length
炫丽的倒计时效果Canvas绘图与动画基础
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