-- 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.php?f=4&t=84988&start=10
原文：https://www.cnblogs.com/v5captain/p/11739414.html