HTML 5 视频音频画布 Web存储

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<!DOCTYPE HTML>

<html>

<body>

Your browser does not support the video tag.

</video>

Your browser does not support the audio tag.

</audio>

var c=document.getElementById(“myCanvasRect”);

var cxt=c.getContext(“2d”);

cxt.fillStyle=”#FF0000″;

cxt.fillRect(0,0,150,75);

</script>

var c=document.getElementById(“myCanvasLine”);

var cxt=c.getContext(“2d”);

cxt.moveTo(10,10);

cxt.lineTo(150,50);

cxt.lineTo(10,50);

cxt.stroke();

</script>

Your browser does not support the canvas element.

</canvas>

var c=document.getElementById(“myCanvasarc”);

var cxt=c.getContext(“2d”);

cxt.fillStyle=”#FF0000″;

cxt.beginPath();

cxt.arc(70,18,15,0,Math.PI*2,true);

cxt.closePath();

cxt.fill();

</script>

Your browser does not support the canvas element.

</canvas>

var c=document.getElementById(“myCanvasJianbian”);

var cxt=c.getContext(“2d”);

var grd=cxt.createLinearGradient(0,0,175,50);

grd.addColorStop(0,”#FF0000″);

grd.addColorStop(1,”#00FF00″);

cxt.fillStyle=grd;

cxt.fillRect(0,0,175,50);

</script>

Your browser does not support the canvas element.

</canvas>

var c=document.getElementById(“myCanvasflower”);

var cxt=c.getContext(“2d”);

var img=new Image()

img.src=”flower.jpg”

cxt.drawImage(img,0,0);

</script>

localStorage.lastname=”Smith”;

document.write(localStorage.lastname);

</script>

if (localStorage.pagecount)

{

localStorage.pagecount=Number(localStorage.pagecount) +1;

}

else

{

localStorage.pagecount=1;

}

document.write(“Visits “+ localStorage.pagecount + ” time(s).”);

</script>

sessionStorage.lastname=”Smith”;

document.write(sessionStorage.lastname);

</script>

if (sessionStorage.pagecount)

{

sessionStorage.pagecount=Number(sessionStorage.pagecount) +1;

}

else

{

sessionStorage.pagecount=1;

}

document.write(“Visits “+sessionStorage.pagecount+” time(s) this session.”);

</script>

</body>

</html>

运行结果如图：

http://www.xieguang133.com

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HTML 5 视频 音频 画布 Web存储

HTML 5 视频音频画布 Web存储