Origin for each line in single_doc/lua_lib/算机_程语_月_基类_数_位算.lua from check-in 60c256f91b:

60c256f91b 2024-06-27    1: local bit = bit
60c256f91b 2024-06-27    2: local s = {}
60c256f91b 2024-06-27    3: -- 和与或
60c256f91b 2024-06-27    4: --~ 左数
60c256f91b 2024-06-27    5: --~ 右数
60c256f91b 2024-06-27    6: function s.位和(u1, u2)
60c256f91b 2024-06-27    7:   return bit.band(u1, u2)
60c256f91b 2024-06-27    8:   end
60c256f91b 2024-06-27    9: -- 左移与右移
60c256f91b 2024-06-27   10: --~ 数
60c256f91b 2024-06-27   11: --~ 右移几位
60c256f91b 2024-06-27   12: function s.位右移(u1, u2)
60c256f91b 2024-06-27   13:   return bit.rshift(u1, u2)
60c256f91b 2024-06-27   14:   end
60c256f91b 2024-06-27   15: return s