美化一下这个部分的信息，可以发现清晰的结构特征：
d 8:announce 41::6969/announce 7:comment 35:"Debian CD from cdimage.debian.org" 13:creation date i1612616380e 9:httpseeds l 146:https://cdimage.debian.org/cdimage/release/edu//srv/cdbuilder.debian.org/dst/deb-cd/weekly-builds/amd64/iso-cd/debian-edu-10.8.0-amd64-netinst.iso 146:https://cdimage.debian.org/cdimage/archive/edu//srv/cdbuilder.debian.org/dst/deb-cd/weekly-builds/amd64/iso-cd/debian-edu-10.8.0-amd64-netinst.iso e 4:info d 6:length i425721856e 4:name 35:debian-edu-10.8.0-amd64-netinst.iso 12:piece length i262144e 6:pieces 32480:[每个部分的hash，以二进制表示] e e