How to shoot a still life with a black background

When shooting black things, the principle of "white plus black minus" should be used for photometry.

If you want to make things white, you have to pay exposure compensation+(snow scene, white background, etc. ), and if you shoot something black, you have to pay exposure compensation-(night scene, black background, etc.). However, it is not easy to realize your wishes in natural light. Under the condition of ensuring enough light ratio between background and still life, we should also ensure that the light is as soft as possible.