Question

请问各位lua大侠，如何用lua脚本读入一个txt文件，并替换里面的字符串呢

比如把"aaa"全部替换为"bbb",这样的脚本该怎样写呢？非常感谢

Answer 1

local file = io.open("1.txt","r")
local str = file:read("*a")
file:close()
local newStr = string.gsub(str,"aaa","bbb")
print(newStr)