Lua语言_File.DeleteLine删除指定行

afunction QMPlugin.DeleteLine(FileName, LineNum)
    local Lines = {}
    pcall(
        function()
            local curLineNum = 0
            io.input(FileName)
            while true do
                local ReadContent = io.read()
                --为了和按键精灵的语法保持一致，注意 lua 中的 nil 需要写为 null
                if ReadContent == null then
 
                    break
                end
                curLineNum = curLineNum + 1
                if curLineNum ~= LineNum then
                    ReadContent=string.gsub(tostring(ReadContent),"\r","")
                    table.insert(Lines,ReadContent)
                end
            end
            --此处不能调用io.close()，由于后面要继续操作该文件，如果关闭的话后面会报错，提示：操作已关闭的文件
            --io.close()
            -- write all the lines
            io.output(FileName)
            for i, v in ipairs(Lines) do
                io.write(string.gsub(v,"\r",""), '\r\n')
            end
            io.close()
        end
    )
end