标签:: canvas

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Canvas上绘制动画

Canvas上绘制精灵图的一帧我们知道我们需要调用drawImage 在画布上去绘制一个图片,那如果我们要绘制一个动图我们需要如何实现呢?我们要获取精灵图片对应的那一帧,然后在画布上绘制。每次绘制一帧,我们需要先清空原先画布上的内容 1void ctx.drawImage(iamge. sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight) 注意: s

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