实例代码“Ctrl+/”提示“F11/ESC”全屏 返回 格式化 恢复 运行
​x
 
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<html>
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<body>
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​
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<canvas id="myCanvas">Your browser does not support the HTML5 canvas tag.</canvas>
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​
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<script>
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var c=document.getElementById('myCanvas');
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var ctx=c.getContext('2d');
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ctx.fillStyle='#FF0000';
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ctx.fillRect(0,0,80,100);
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</script>
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​
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</body>
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</html>
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