LUA副本問題

Question

我正在使用以下程序複製另一個文件。我經常看到源和目標不完全相同（md5sum不同）。下面的代碼有什麼問題嗎？

local size = 2^13  -- good buffer size (8K) 

local params = {...} 
local srcfile = params[1] 
local outfile = params[1] .. "_copy" 

print (srcfile) 
print (outfile) 


local inf = io.open(srcfile, "r") 
local of = io.open(outfile, "w") 

while true do 
    local block = inf:read(size) 
    print(size) 
    if not block then break end 
     of:write(block) 
end 

inf:close() 
of:close() 

感謝， GL

Answer 1

您可能需要使用二進制模式，以確保底線的字符不被修改。

local inf = io.open(srcfile, "rb") 
local of = io.open(outfile, "wb")