帮忙看看怎么不出来哪里错误了
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<canvas id="canvas" style=" border: 1px solid #234; display: block;margin: 100px auto" ></canvas>
<script>
var dw=[
{p:[{x:0,p:0},{x:800,y:0},{x:400,y:400}],color:"#caff67"},
{p:[{x:0,p:0},{x:400,y:400},{x:0,y:800}],color:"#67becf"},
{p:[{x:800,p:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:"#ef3d61"},
{p:[{x:600,p:200},{x:600,y:600},{x:400,y:400}],color:"#caff67"},
{p:[{x:400,p:400},{x:600,y:600},{x:400,y:800},{x:200,y:600}],color:"#a594c0"},
{p:[{x:200,p:600},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"},
{p:[{x:800,p: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 j=0;j<dw.length;j++)
draw(dw[j],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();
}
</script>
</body>
</html>
北京以南浏览 1214回答 1
1回答
-
ChinaCJM
var dw=[ {p:[{x:0,p:0},{x:800,y:0},{x:400,y:400}],color:"#caff67"}, {p:[{x:0,p:0},{x:400,y:400},{x:0,y:800}],color:"#67becf"}, {p:[{x:800,p:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:"#ef3d61"}, {p:[{x:600,p:200},{x:600,y:600},{x:400,y:400}],color:"#caff67"}, {p:[{x:400,p:400},{x:600,y:600},{x:400,y:800},{x:200,y:600}],color:"#a594c0"}, {p:[{x:200,p:600},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"}, {p:[{x:800,p:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"} ];这里每一行的第一个“y”都被你写成“p”了。这要改过来就正确了var dw=[ {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:"#caff67"}, {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:"#f6ca29"} ];
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