Draws a smooth Bézier curve. Click where you want the curve to start, drag, release, and then move the pointer to where you want the curve to end and click. Move the pointer and click again to add a straight line segment to the curve. Double-click to finish drawing the curve. To create a closed shape, double-click the starting point of the curve.
绘制平滑曲线。在选定的曲线起点位置单击、拖动、释放，然后将鼠标指针移到选定的曲线终点位置并单击。移动鼠标指针并再次单击将线条加入到曲线中。双击以完成曲线的绘制。要建立封闭的形状，请双击曲线的起点。