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canvas繪制正文形并填充

發(fā)布時(shí)間:2020-07-06 11:41:48 來(lái)源:網(wǎng)絡(luò) 閱讀:277 作者:素顏豬 欄目:開(kāi)發(fā)技術(shù)

效果圖

    canvas繪制正文形并填充

html結(jié)構(gòu)

    

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>canvas7</title>

<link rel="stylesheet" href="">

</head>

<body>

<canvas id="canvas" style ="border:1px solid #aaa;diplay:block;margin:50px auto;">

當(dāng)前瀏覽器不支持canvas,請(qǐng)更換瀏覽器后再試

</canvas>

</body>

</html>

js腳本

  

<script>

window.onload = function(){

var canvas = document.getElementById('canvas');


canvas.width = 800;

canvas.height = 800;


var context = canvas.getContext('2d');


drawRect(context,100,100,400,400,10,"#058","red");

}


function drawRect(context,x,y,width,height,borderWidth,borderColor,fillColor){

context.beginPath();


context.moveTo(x,y);

context.lineTo(x+width,y);

context.lineTo(x+width,y+height);

context.lineTo(x,y+height);

context.closePath();


context.lineWidth = borderWidth;

context.fillStyle = fillColor;

context.strokeStyle = borderColor;

context.fill();

context.stroke();

}

</script>

  canvas繪制正文形并填充

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