硬盘空间计算，Itmayhappenthatadayyoudiscoveryourcompterdiskisnearlyfull.Andyouhavenoclue"why".ThemainpurposeofSpaceSnifferistohelpyoutodigintothecontentofyourcomputerstoragemedia,theeasyway.Theapproachistohilightbigfiles.Thisisdonebydrawingeachfileandfolderwithashapesiz