<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Canvas 特效</title>
</head>
<body>
<canvas id="canvas" width="1024" height="768" style="border:1px solid #aaa; display:block; margin:50px auto;" > </canvas>
<script>
window.onload = function(){
var canvas = document.getElementById（"canvas"）;
var cantext = canvas.getContext("2d")
context.moveTo(100,100)
context.lineTo(700,700)
context.stroke()
}
</script>
</body>
</html>
2014-12-01
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>1</title>
</head>
<body>
<canvas id="canvas" style="border:1px sliod #aaa;display: block;margin: 50px auto;">
请更换浏览器后再试~~~
</canvas>
<script>
var tangram=[
{p:[{x:0,y:0},{x:800,y:0},{x:400,y:400}],color:"#caff87"},
{p:[{x:0,y:0},{x:400,y:400},{x:0,y:800}],color:"#ffffff"},
{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},{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"}
]
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.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=3
cxt.stroke();
}
</script>
</body>
</html><html>
<head>
<meta charset="utf-8">
<title>Canvas 特效</title>
</head>
<body>
<canvas id="canvas" width="1024" height="768" style="border:1px solid #aaa; display:block; margin:50px auto;" > </canvas>
<script>
window.onload = function(){
var canvas = document.getElementById（"canvas"）;
var context = canvas.getContext("2d");
context.moveTo(100,100)
context.lineTo(700,700)
context.stroke()
}
</script>
</body>
</html>
修改了 context，但是还是画不出来，并且我发现把宽度和高度代码放到<script>里面后没有生效，感觉现在整个<script>都没有生效，但是没找到原因，请高人指点
举报
