4、tradetime,space,anddecreasesmuchcostsofthetradesrelativetothetraditionalways,therebycompaniescangetmoreprofit.E—commerceisanewtypetradecomesoutbytheadvancementofthesocietyandinformationtechnology.ThisnewtradebringsChinalotsofchances,andmanychallengestOtherevenuesystemaswell.This issue will analyzee-