<!DOCTYPE html><html lang='zh-cn'> <head> <title>tangram</title> <meta charset="utf-8"> <style type="text/css"> </style> </head> <body> <canvas id="canvas" style="border: 1px solid #aaa;display: block;margin: 30px 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:'ef3d6q'}, {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:600},{x:400,y:800},{x:0,y:800}],color:"#fa83cc"}, {p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"}, ]; window.onload=function(){ var canvas=document.getElementById('canvas'); canvas.width=800; canvas.height=800; var context=canvas.getContext('2d'); for(var i=0;i<tangram.length;i++){ draw(tangram[i],context); } function draw(place,cxt){ cxt.beginPath(); cxt.moveTo(place.p[0].x,place.p[0].y); for(var i=1;i<place.p.length;i++){ cxt.lineTo(place.p[i].x,place.p[i].y); cxt.closePath(); cxt.fillStyle=place.color; cxt.fill(); cxt.strokeStyle='#000'; cxt.lineWidth=3; cxt.stroke(); } } } </script> </body></html>