感觉代码没错啊 ，为何只是显示边框，没有画出内容？？？
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<canvas id="canvas" style="border: 1px solid #aaa;display: block;margin: 50px auto"></canvas>
<script>
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:"caff67"},
{p:[{x:600,y:200},{x:600,y:600},{x:400,y:400}],color:"caff67"},
{p:[{x:400,y:400},{x:600,y:600},{x:400,y:800},{x:0,y:800}],color:"caff67"},
{p:[{x:200,y:600},{x:400,y:800},{x:0,y:800}],color:"caff67"},
{p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"caff67"}
]
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++){
darw(tangram[i],context);
}
}
function darw(piece,cxt){
cxt.beginPath();
cxt.moveTo(piece.p[0].x,piece.p[0].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>
