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<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
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window.onload = function ()
{
var oC = document.getElementById(‘c1‘);
var oGC = oC.getContext(‘2d‘);
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oGC.translate(100,100);
oGC.rotate(num*Math.PI/180);
oGC.scale(inum2*1/50,inum2*1/50);
oGC.translate(-50,-50);
oGC.fillRect(0,0,100,100);
oGC.restore();
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<style>
body{
background:pink;
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#c1{
background:white;
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</style>
</head>
<body>
<canvas id="c1" width="400" height="400"></canvas>
</body>
</html>
时间： 2024-10-05 07:28:33