Select the wire side of the vector can also use the toolbar to draw points, drawing a line screen.
说明：对矢量图的电线面进行选择，还可以用工具条来画点，画线，画面。
Depending on the state of the program, a mouse down might start drawing a line, or it might select an object.
根据程序的状态，鼠标按下事件，应该开始绘制一条直线，或者选中一个对象。
Depending on the state of the program, a mouse down might start drawing a line, or it might select an object.
根据程序的状态，鼠标按下事件，应该开始绘制一条直线，或者选中一个对象。
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