我一直在研究交互式平面佈置圖,當您按下按鈕時,它將在畫布元素上繪製。我一直在用這個工作得越多,我越發覺到它可能不可能 - 有什麼想法?這裏是多少碼的我已經做了(因爲預期它不工作,很明顯)使用按鈕在畫布上繪圖
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<ul id="nav">
<div id="buttons">
<input type="button" id="clear" value="118">
</div>
</ul>
<div id="main">
<canvas id="118" width="1200" height="630" style="border:1px solid #d3d3d3;"></canvas>
<script>
var canvas = document.getElementById("canvas118");
var context = canvas.getContext("2d");
document.getElementById('clear').addEventListener('click', function() {
context.moveTo(87,354);
context.lineTo(169,426);
context.lineTo(277,397);
context.lineTo(198,324);
context.lineTo(87,354);
context.fillstyle = "#ff0000";
context.fill();
context.strokeStyle = "#ff0000";
context.stroke();
});
</script>
</div>
</body>
</html>
什麼你在這裏有條件嗎? – Shelly