数是数学中最基本的概念,也是我们一切活动中最常用、最基本的一个概念,它是人类在生产和生活实践中逐渐形成和发展的。对数的认识,常常被看作为认识客观世界程度、衡量生产力发展水平和文化发达与否的一个重要标志。早在原始社会,人们为了计算猎物、分配食物,创造和积累有关数量的知识,出现了“结绳计数”。据考古发现,在原始社会的仰韶文化时期,已经出现了记数符号。而从 Number is the most basic concept in mathematics. It is also the most common and basic concept in all our activities. It is the gradual formation and development of mankind in the production and life practice. Logarithmic awareness is often seen as an important indicator of the level of the objective world, a measure of the level of development of the productive forces and whether the culture is developed or not. As early as the Primitive Society, there was a “knot count” for the purpose of calculating prey, distributing food, creating and accumulating a relevant amount of knowledge. According to archeology, in the primitive society Yangshao culture period, there has been a sign number. From