26 lines
643 B
HTML
26 lines
643 B
HTML
<!DOCTYPE HTML>
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<canvas width="100" height="100" id="c"></canvas>
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<script>
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window.onload = function () {
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var ctx = document.getElementById('c').getContext('2d');
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ctx.beginPath();
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ctx.moveTo(0, 0);
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ctx.lineTo(0, 100);
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ctx.lineTo(100, 100);
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ctx.fillStyle = '#f00';
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ctx.strokeStyle = '#00f';
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ctx.fillRect(30, 10, 10, 10);
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ctx.strokeRect(60, 10, 10, 10);
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ctx.clearRect(25, 15, 50, 10);
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ctx.drawImage(document.getElementById('c'), 0, 0);
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if (ctx.putImageData) ctx.putImageData(ctx.getImageData(0, 0, 10, 10), 0, 0);
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ctx.lineTo(100, 0);
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ctx.fillStyle = '#0f0';
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ctx.fill();
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}
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</script>
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