代码没有结果，只有一个框框。
<!DOCTYPE HTML>
<html>
<body>
<canvas id="canvas" width="800" height="800" style="border:1px solid #c3c3c3;">
Your browser does not support the canvas element.
</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}],color:"#a594c0"},
{p:[{x:200,y:600},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"},
{p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"},
}
window.onload function() {
var canvas = document.getElementById("canvas");
var context = canvas.getContext("2d");
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[o].y);
for(var i=1; i<piece.p.length; i++){
cxt.lineTo(piece.p[i].x, piece.p[i].y);
}
cxt.closePath();
cxt.fillStyle = piece.color;
cxt.fill();
}
</script>
</body>
</html>
