The rest of the code found in the function prints the files, then the directories, then recurses.
函数其余部分的代码将输出文件，接着输出目录，然后是递归。
This is the key indexing object to which files will be added as the script recurses through directories.
这是键索引对象，当脚本在目录中进行递归时，文件添加到其中。
As you can tell from the output immediately above, tar archives the CSS directory and recurses to archive that directory's contents.
从上面的输出中您可以看出，tar对css目录进行了存档，同时递归地对该目录中的内容进行了存档。
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