What are the common camera automatic exposure modes, and what role do they play in completing the photographic intention?

I'll tell you some basic knowledge, which I actually learned in class the other day.

1 Aperture Priority (AV): Aperture Priority mode can be used for outdoor priority and snapshots. Set the aperture and the camera will automatically give a shutter value.

Shutter priority (TV): Shutter priority can be used when shooting fast moving objects.

Automatic exposure mode (P): The camera only automatically sets the aperture value and shutter value to ensure sufficient exposure, and manually sets the focus and flash.

These modes complement each other, so we should master them flexibly in actual shooting.