lovecoding
/
W250511


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #can{
            /* width: 500px;
            height: 500px; */
            background-color: yellow;
        }
    </style>
</head>
<body>
    <canvas id="can" width="500" height="500"></canvas>
    <script>
        var oCan = document.getElementById('can');
        // 初始化canvas
        var oCtx = oCan.getContext('2d');
        // 设置线条样式
        oCtx.lineWidth = 10;
        oCtx.strokeStyle = 'red';
        // 绘制一个条直线
        // 落笔点
        oCtx.moveTo(100,100);
        // 抬笔点
        oCtx.lineTo(400,400);
        oCtx.lineTo(400,100);
        // 绘制
        oCtx.stroke();
    </script>
</body>
</html>