说明：  no intro
(The basic concept (read-out) unit was limited to 1 thou. Coordinate origin is located in the middle of the work area, so there are coordinate values, and negative coordinates. Coordinate position indicator is located in the lower right corner of the screen. Once the real-time capture (Real-Time Snap) feature enabled, when the mouse pointer when the wire or pin end, X, Y coordinates of one or both have been additional light show highlighting the location of the mouse pointer show that has been captured. For example, if the mouse pointer in the vicinity of a line, it caught will be arrested Y-axis, Y coordinates will be highlighted. The appearance of the screen (SCREEN LAYOUT) Overview (Introduction) of the screen is divided into three regions- the edit window (EditingWindow), the preview window (Overview Window), Toolbox)