老师,我这个是等边吗?

来源：3-5 编程练习

慕言_7946275

2019-11-02 11:52:33

数学知识已经抛脑后了

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>canvas</title>
    <style>
        canvas{background-color:lightpink;}
    </style>
</head>
<body>
    <canvas id="canvas" width="600" height="600">
        您的浏览器不支持canvas
    </canvas>
    <script>
	//在此处填写代码
	    var canvas=document.getElementById('canvas');
		var ctx=canvas.getContext('2d');
		ctx.moveTo(300,150);
		ctx.lineTo(75,450);
		ctx.strokeStyle="red";
		ctx.stroke();
		ctx.beginPath();
		
		ctx.moveTo(300,150);
		ctx.lineTo(525,450);
		ctx.strokeStyle="blue";
		ctx.stroke();
		ctx.beginPath();
		
		ctx.moveTo(75,450);
		ctx.lineTo(525,450);
		ctx.strokeStyle="green";
		ctx.stroke();
		ctx.beginPath();
	</script>
</body>

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