如何使用Lua从zip文件中提取文件？

更新：我现在有以下代码,但每次到达函数末尾时都会崩溃,但它成功提取所有文件并将它们放在正确的位置.

require "zip"

function ExtractZipAndCopyFiles(zipPath,zipFilename,destinationPath)
    local zfile,err = zip.open(zipPath .. zipFilename)

    -- iterate through each file insize the zip file
    for file in zfile:files() do
        local currFile,err = zfile:open(file.filename)
        local currFileContents = currFile:read("*a") -- read entire contents of current file
        local hBinaryOutput = io.open(destinationPath .. file.filename,"wb")

        -- write current file inside zip to a file outside zip
        if(hBinaryOutput)then
            hBinaryOutput:write(currFileContents)
            hBinaryOutput:close()
        end
    end

    zfile:close()
end
-- call the function
ExtractZipAndCopyFiles("C:UsersbhannanDesktopLUA","example.zip","C:UsersbhannanDesktopZipExtractionOutput")

为什么每次到达时都会崩溃？