weallknowthattheprimitivepeopleeatthingswithoutcook.weallknowthattheprimitivepeopleeatthingswithoutcook.Andtheydon'twearclothesButtherewasapeoplewholearnedtocookthemeattherewasanotherpeoplelearnedtomakeclotheswithleaves=ExchangeWiththedevelopmentofproductiveforcesandsocialdivisionoflabor,exchangebecomemoreandmorefrequently,andit'salsobecomeincreasinglydifficult.Becausethebartersuccessfulpremiseisthatbothsidesjustneedeachother'sgoods,andthistakesalotoftimelookingforthegoods.ExchangeofsalttotakemilkExchangeofspearheadtotakethesaltExchangeofcoffeetotakethespearheadExchangeofPearltotakethecoffee要牛奶的拿盐来换要盐的拿矛头来要矛头的拿咖啡来要咖啡的拿红珍珠的=AsheepTwoaxe-head==sopeoplesensedthattheymusttofindsomethingthatcanexchangeanything,asequivalents.sopeoplesensedthattheymusttofindsomethingthatcanexchangeanything,asequivalents.sopeoplesensedthattheymusttofindsomethingthatcanexchangeanything,asequivalents.Sopeoplestartedtocastingsomethingtoreplacetheshells.Butthisisnoteasy,becauseeachtransactionneedsweighing,identification,andsometimesneedtosplit历朝历代的货币Butthenewproblemsarecoming.Butthenewproblemsarecoming.thoesthingsaretooheavytocarry.Jiaozi(交子),istheworld'sfirstuseofnotes,issuedintheearlyNorthernSongDynasty(1023)ofChengdu.JiaoziThefirstchildisinfactakindofdeposits.TheNorthernSongDynasty,SichuanChengduappearedinconvenienttobringagreatdealofbusinessmenoperatinginthecustodybusinesscashJiaozishop.Depositorscashfordeliverytotheoperators,operatorstakedepositsamounttofillinwithpaperpaperproductionofpaper,andthenreturnedtothedepositor,andchargeastoragefee.Thistemporarilyfillintheamountofthedepositinyourpaperiscalledjiaozi.ThemoneyfromallovertheworldInrecentdecades,somenewformofcurrencyisemerging,suchasthepopularelectronicmoney.Electroniccurrencyintangiblenoshadow,itreliesonfinancialelectronicnetworktothecomputertechnologyandcommunicationtechnologyasthemethod,takeelectronicdatastoredinacomputersystem,throughthecomputernetworksystem,electronicinformationintheformofcurrencyandrealizethefunctionofthepayment.Bankcardisourcommoncarrierofelectronicmoney,electronicmoneyisgeneratedfromthecurrencyhistoryaleap.Now,electroniccurrencyhaswidelythroughtothemodernlife,itinadealthanpapermoneytopaymoreconvenientandquick.Usetheelectronicmoney,candepositwithdrawals;Canreplacecashrealizetransferpayments,directlyforconsumptionandsettlement;Toabankforconsumercredit.Inaddition,comparedwithpapermoney,electronicmoneywillnotbeforgedmore,userisemoresafetyandconvenience.CommodityexchangeEquivalentGeneralequivalentMoney