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1 <!DOCTYPE html> |
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2 <html> |
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3 <body> |
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4 <canvas id="c" width="500" height="1000"> |
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5 </canvas> |
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6 <script> |
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7 var ctxt = document.getElementById('c').getContext('2d'); |
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8 for (var k = 0; k < 100; ++j) { |
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9 for (var j = 0; j < 10; ++j) { |
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10 for (var i = 0; i < 1000; ++i) { |
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11 gradient = ctxt.createLinearGradient(0,0,200,i); |
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12 gradient.addColorStop(0,'black'); |
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13 gradient.addColorStop(1,'rgba(0, 255*k/100, 0, 0.1)'); |
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14 ctxt.fillStyle = gradient; |
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15 ctxt.fillRect(j*50, 2*i, 50, 2); |
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16 } |
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17 } |
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18 } |
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19 </script> |
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20 </body> |
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21 </html> |