1。First, we know the difference between the graphics and the non - aliasing.Create a new canvas, then click the ellipse marquee tool, draw the selection area, check the ldquo, eliminate the sawtooth , fill the color, cancel the ldquo, eliminate the sawtooth , check and build a selection area and fill the color.At this point, it can be seen that the transition of the edge of the figure of eliminating the sawtooth is smooth and the other edge is rough. 2,此外,没有设置效果,也会导致锯齿情况的边缘。例:左圆的羽化值为0,正确的设置为3像素,填充效果的建立。这是发现的图边缘更自然在羽毛。