<body>
<canvas id="myCanvas" width="200" height="100" style="border:1px solid #c3c3c3;">
Your browser does not support the canvas element.
</canvas>
<script type="text/javascript">
var c = document.getElementById("myCanvas");
var cxt = c.getContext("2d");
cxt.fillStyle = "#FF0000";
cxt.fillRect(0, 0, 150, 75);
</script>
</body>
getContext在谷歌浏览器中，使用时要先加载canvas对象，否则会提示‘getContext is null‘
getContext在谷歌浏览器中，使用时要先加载canvas对象，否则会提示'getContext is null'
时间： 2024-08-07 04:20:54