请问 我这段代码为什么没能在画布上画出来
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no,maximum-scale=1.0,minimum-scale=1.0" />
<title>无标题文档</title>
</head>
<body>
<canvas id="box" width="300" height="300" ></canvas>
<script type="text/javascript">
var boxObj = document.getElementById('box');
var boxTxtObj = boxObj.getContext('2d');
boxObj.fillStyle = '#999999';
boxObj.fillRect(0,0,300,300);
boxTxtObj.fillStyle = '#666666';
boxTxtObj.fillRect(100,100,111,111);
</script>
</body>
</html>
不告诉你ID浏览 1279回答 2
2回答
-
OlderSkee
boxTxtObj.fillStyle = '#999999';boxTxtObj.fillRect(0, 0, 300, 300);在获得的2d画布上作图 ，一切操作都是在这个上面 boxTxtObj
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相关分类
Html5
JavaScript