三、十数概说（上）□陈郁０到９这十个数字，总是自由组合，人人都用，时时都用，但每位数的个中含义却并不是人人知晓。这里以平时搜集的有限资料，分别简介，以飨读者。“０”。０在十数中处于首位，我国首先使用的位值制促进了０的出现。始于三千多年前西周的筹算，就... Three, the number of ten Summary (on) □ Chen Yu 0 to 9 These ten numbers are always free to mix and use for all, from time to time, but the meaning of each digit is not everyone knows. Here to collect the usual limited information, respectively, brief introduction to readers. “0”. 0 In the top ten, the bit-value system first used in our country facilitated the emergence of zero. Began in the Western Zhou Dynasty more than 3000 years of planning, ...