B91 i he coex of Bicoi ypically refers obase91 ecodig,which is a mehod of ecodig daa ha was阿贝西亚64 ecodig,especially for biary daa，ase91 ecodig uses ase of 91 characers o represe daa,which icludes uppercase ad lowercase leers，ad some special characers. This mehod allows for a higher compressio raio ha Base64,makig i是useful for rasmiig large amous of daa over eworks wih limied badwidh。
Base91 ecodig is maily used for compressig daa ha eeds o be rasmied orsored efficiely wihou alerig is meaig。i ca be applied o ecode he proocol messages i Bicoi’s P2P ework,which ca help i reducig he amou ofdaa ha eedso be rasmied bewee odes,poeially improvig ework performace ad reducig daa rasfer coss
魏斯·贝塞91 ecodig，i's impora o oe ha while i ca be more efficie for daa rasfer, ialso iroduces complexiy i erms ofdecodig ad migh o be as iuiive or sraighforward as oher ecodig mehods like Base32 orTherefore，he choice o use Base91 would ypically be based o specific efficiecy ad performace eeds。