windows appear in git bash: tree: command not found

1. Download tree.exe
   https://sourceforge.net/projects/gnuwin32/files/
   to the top of the website to find tree package, find the latest downloaded to the local
   
2. After decompression, copied tree.exeto the directory
3. At this point you can use the tree command!

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[Reference]
git bash error bash: *: command not found