canvas清除图形
时间: 2023-10-11 10:11:47 浏览: 61
回答: 要清除canvas中绘制的图形,可以使用clearRect方法。这个方法清除的并不是一个矩形,而是清除那片矩阵区域中绘制出的像素点。你可以使用clearRect方法来清除你绘制的任何图形所在的矩形区域。你可以指定要清除的矩形区域的起始点坐标和矩形的宽度和高度。这样,清除的区域就会变成透明的,之后你可以在这个区域绘制新的图形。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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