Draws a line composed of a series of straight line segments. Drag to draw a line segment, click to define the endpoint of the line segment, and then drag to draw a new line segment. Double-click to finish drawing the line. To create a closed shape, double-click the starting point of the line.
绘制由一组直线段组成的线条。拖动以绘制线段，单击以定义线段的终点，然后再次拖动以绘制新的线段。双击以完成线条的绘制。要建立封闭的形状，请双击线条的起点。