-- Converts a byte to a string of 0s and 1s. function byte2bin(n) local t = {} for i=7,0,-1 do t[#t+1] = math.floor(n / 2^i) n = n % 2^i end return table.concat(t) end a = byte2bin(127) print(a) 输出: 01111111 原文 : http://love2d.org/forums/viewtopic.ph