HTML5画电路图

2016/02/19 80401

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画图API的应用，线，圆等 http://t.cn/RGfhSlO 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>何问起</title>
<meta name="description" content="canvas画简单电路图 by hovertree.com" />
</head>
<body>
    <canvas id="canHewenqi" width="500" height="300" style="margin: 20px auto"></canvas>
    
    <script>
        var canvas = document.getElementById("canHewenqi");
        var cxt = canvas.getContext("2d");
        
        cxt.moveTo(10,10);
        cxt.lineTo(100,10);
        cxt.stroke();
        cxt.beginPath();
        cxt.moveTo(100,10);
        cxt.lineTo(100,0);
        cxt.lineTo(150,0);
        cxt.lineTo(150,20);
        cxt.lineTo(100,20);
        cxt.closePath();
        cxt.moveTo(150,10);
        cxt.lineTo(250,10);
        cxt.lineTo(250,100);
        cxt.stroke();
        cxt.moveTo(225,100);
        cxt.lineTo(275,100);
        cxt.stroke();
        cxt.moveTo(225,115);
        cxt.lineTo(275,115);
        cxt.stroke();
        cxt.moveTo(250,115);
        cxt.lineTo(250,160);
        cxt.stroke();
        cxt.moveTo(250,160);
        cxt.lineTo(150,160);
        cxt.stroke();
        cxt.arc(130,160,20,0,360,false);
        cxt.stroke();
        cxt.moveTo(150,160);
        cxt.lineTo(10,160);
        cxt.lineTo(10,10);
        cxt.stroke();

        
    </script>
<div>canvas画简单电路图 by 何问起</div>
<!--http://hovertree.com/code/html5/fatorqgm.htm-->
</body>
</html>