質問編集履歴
1
一部訂正
test
CHANGED
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File without changes
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test
CHANGED
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@@ -14,7 +14,7 @@
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14
14
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15
15
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16
16
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17
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-
<input type="button" value="消去" onclick="c.
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17
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+
<input type="button" value="消去" onclick="c.clearRect(0, 0, a.clientWidth, a.clientHeight);">
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18
18
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19
19
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<canvas width="1000" height="1000"></canvas>
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20
20
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