<!DOCTYPE html>
<html lang='zh-cn'>
<head>
<title>Insert you title</title>
<meta name='description' content='this is my page'>
<meta name='keywords' content='keyword1,keyword2,keyword3'>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type='text/javascript' src='./js/jquery-1.12.1.min.js'></script>
<style type='text/css'>
html,body,canvas {
margin: 0;
padding: 0;
}
html {
background: #999;
}
canvas {
background: #FFF;
display: block;
margin: 75px auto;
border-radius: 2px;
}
</style>
<script type="text/javascript">
$( function(){
var oCan = $( '#can' ).get( 0 ).getContext( '2d' );
oCan.beginPath();
oCan.strokeStyle = '#F0F';
oCan.lineWidth = 10;
oCan.moveTo( 250 , 175 );
oCan.lineTo( 445 , 345 );
oCan.lineTo( 45 , 135 );
oCan.closePath();
oCan.lineJoin = 'round'; /* 设置线之间的连接点的形状 miter (默认) round (圆形) bevel (斜角) 但是无法作用于自动闭合的点*/
oCan.stroke();
oCan.beginPath();
oCan.strokeStyle = '#F0F';
oCan.lineWidth = 10;
oCan.moveTo( 50 , 75 );
oCan.lineTo( 125 , 95 );
oCan.lineTo( 45 , 35 );
oCan.lineCap = 'round'; /* 设置端点的样式 butt (默认) round (圆形) square (高度多出线宽的一半) 作用于 " 线 " 并且要在此属性之后才能调用 closePath() 有效 */
oCan.stroke();
oCan.closePath();
} );
</script>
</head>
<body>
<canvas width='500' height='350' id='can'>请您更换浏览器...</canvas>
</body>
</html>
