发布于 2017-01-12 23:17:03 | 105 次阅读 | 评论: 0 | 来源: 网友投递
这里有新鲜出炉的Javascript教程，程序狗速度看过来！
JavaScript客户端脚本语言
Javascript 是一种由Netscape的LiveScript发展而来的原型化继承的基于对象的动态类型的区分大小写的客户端脚本语言，主要目的是为了解决服务器端语言，比如Perl，遗留的速度问题，为客户提供更流畅的浏览效果。
IE下画线
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<style type="text/css">
v/:* { behavior:url(#default#VML); }
</style>
</head>
<body>
<v:line
from='200,200'
to='300,100'
style='position:absolute;z-index:8'>
</v:line>
</body>
</html><script>
var R =function(){};
R.prototype.createLine = function (startX,startY,endX,endY){
var le = document.createElement( "<v:line><v:line>" );
le.from = startX + ',' + startY ;
le.to = endX + ',' + endY ;
le.strokecolor= "red" ;
le.strokeweight= "1pt" ;
return le;
}
var d =new R();
document.body.appendChild(d.createLine(1,1,200,100));
</script>
<html>
<head>
<title>A canvas fillRect, strokeRect and clearRect example</title>
<meta name="DC.creator" content="Kamiel Martinet, http://www.martinet.nl/">
<meta name="DC.publisher" content="Mozilla Developer Center, http://developer.mozilla.org">
<script type="text/javascript">
function drawShape(){
// get the canvas element using the DOM
var canvas = document.getElementById('tutorial');
// Make sure we don't execute when canvas isn't supported
if (canvas.getContext){
// use getContext to use the canvas for drawing
var ctx = canvas.getContext('2d');
// Draw shapes
ctx.fillRect(25,25,100,100);
ctx.clearRect(45,45,60,60);
ctx.strokeRect(50,50,50,50);
ctx.beginPath();
ctx.moveTo(100,100);
ctx.lineTo(200,250);
ctx.lineTo(50,250);
ctx.closePath();
ctx.stroke();
} else {
alert('You need Safari or Firefox 1.5+ to see this demo.');
}
}
</script>
<style type="text/css">
</style>
</head>
<body onload="drawShape();">
<div>
<canvas id="tutorial" width="400" height="400"></canvas>
</div>
</body>
</html>