代码没有结果,只有一个框框。

来源:2-2 绘制直线、多边形和七巧板

我的名字叫浩仔

2016-02-28 23:52

<!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>


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1回答

  • 爻曱
    2016-02-29 10:11:00
    已采纳

    cxt.moveTo(piece.p[0].x,piece.p[o].y);

    0打成o了吧

    我的名字叫浩...

    不过结果还是不显示

    2016-02-29 20:16:34

    共 2 条回复 >

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