时代的前进,生活结构的改变,环境条件的差异,原先人们认为无价值的事物,或许会变得有价值了,或者反之;原先人们认为是“奢侈”的东西,而今逐渐被认为是必需品了;这种衡量的“法码”,实质上取决于社会的发展和人们对事物的认可。不但不同的人评价可能会有差异;即使同一个人在不同的时期也会有不同的评价。它使得功能评价复杂化。 The advancement of the times, the change in the structure of life, and the difference in environmental conditions. Things that people originally thought were worthless may become valuable, or vice versa. What people originally thought were “luxury” are now considered to be necessities. This measure of “law” essentially depends on the development of society and people’s recognition of things. Not only different people’s evaluations may be different; even the same person will have different evaluations at different times. It complicates functional evaluation.