<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>七巧板</title>
</head>
<body>
<canvas id="canvas">浏览器不支持</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:"#67beef"},
{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:"#f9f5la"},
{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:"#fa8ecc"},
{p:[{x:800,y:400},{x:800,y:800}{x:400,y:800}],color:"3f6ca29"}
]
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(piece,cxt){
cxt.beginPath();
cxt.moveTo(piece.p[0].x,piece.p[0].y);
for(var i=0;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>看好几遍都看不出错来，求大神啊啊啊啊啊啊！！！！！！！！！！！！！
2 回答
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雨中的鱼L
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<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-type" content="text/html;charset=utf-8" />
</head>
<body>
<canvas id="canvas" style="display:block;margin:0 auto;border:1px solid red">
您的浏览器不支持canvas标签
</canvas>
</body>
</html>
<script type="text/javascript">
var tangram = [
{p:[{x:0,y:0},{x:400,y:0},{x:200,y:200}],color:"#caff67"},
{p:[{x:0,y:0},{x:200,y:200},{x:0,y:400}],color:"#67becf"},
{p:[{x:400,y:0},{x:400,y:200},{x:300,y:300},{x:300,y:100}],color:"#ef3d61"},
{p:[{x:300,y:100},{x:300,y:300},{x:200,y:200}],color:"#f9f51a"},
{p:[{x:200,y:200},{x:300,y:300},{x:200,y:400},{x:100,y:300}],color:"#a594c0"},
{p:[{x:100,y:300},{x:200,y:400},{x:0,y:400}],color:"#fa8ecc"},
{p:[{x:400,y:200},{x:400,y:400},{x:200,y:400}],color:"#f6ca29"}
];
window.onload=function(){
var canvas = document.getElementById("canvas");
canvas.width=400;
canvas.height=400;
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[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();
cxt.strokeStyle = "black";
cxt.lineWidth = 2;
cxt.stroke();
}
}
</script>
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