How to print CAD in black and white? It is printed as a white line on a black background.

You can see "model" and "layout 1" in the lower left corner of the CAD drawing. Click' Layout', it will show that the original black background has turned into a white background, and the white line has turned into a black line. The displayed picture has an inner frame and an inner layer. Double-click the left mouse button to put the crosshairs in and out of the inner layer, and use the wheel key to zoom and freely move the inner and outer layers. Sometimes, when you click Layout, the Print Settings dialog box appears, and then click OK. Sometimes there is no' layout 1'. Just find' layout l' in the' Insert' drop-down menu at the top left of the interface, and the print settings dialog box will appear. Do the same thing. This is how I cut the picture on a white background.