Draws a freeform line where you drag in the current document. To end the line, release the mouse button. To draw a closed shape, release the mouse button near the starting point of the line.
在当前文档中拖动的位置绘制一条不规则线条。要结束线条，请释放鼠标按钮。要绘制封闭形状，请在线条起点附近的位置释放鼠标按钮。