Can I use lenses from a traditional SLR camera with a digital SLR camera?

Yes, you can. In fact, many classic lenses were developed from traditional SLR lenses. The main problem is that the CCD area of a DSLR is generally smaller than that of film, so the effective focal length is generally equal to the original focal length x factor, for example, 1.5 for Nikon and 1.6 for Canon.

Secondly, there may also be problems with dark corners of the image, color, and lack of resolution.