说明文two-dimensional code

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1、Ⅰ.INTRODUCTION:A.Topic:Two-dimensionalcodeisahiddendisaster.B.AttentionGrabber:Scanningtwo-dimensionalcodeletspeoplegetinformationeasily.Two-dimensionalcodehasalreadybeenaconvenientwayunconsciously.So,howcouldthisconvenientaccessbeahiddendisaster?C.Thesisstatement:1.Theownfeaturesoftwo-dimensionalc

2、ode2.Two-dimensionalispopular.3.Itisconvenientbutitisahiddendisaster.Ⅱ.BODYA:FirstMainPoint:Theownfeaturesoftwo-dimensionalcode.1.Sub-point:Developmentoftwo-dimensionalcodea.SupportMaterial:Itdevelopsfromlinearbarcodeandhasblackandwhiterectanglestodeliverbinarydata.ItisoriginatedinDensowavecompanyi

3、nJapanwhichusesittotrackcarparts.b.SupportMaterial:Itiscalledlowpricedstoragewithoutcomputerchip.Becauseitnotonlyusewidthrecordinformationbutalsouselengthwhichmakesitcanholdlargeamountofinformation.Itcanrecord1850capitalletters,2710numbersormorethan500Chinesecharacters.Italsocanrecordpictures,finge

4、rprintandvoices.2.Sub-point:Uniqueadvantagesoftwo-dimensionalcodea:SupportMaterial:Itisfault-tolerant.Aslongasthedamagelessthan50%,itcanberecovered.b:SupportMaterial:Ithas3locatingpointsandcanbereadfromanydirection.B:SecondMainPoint:Two-dimensionalcodeispopularbecauseitlikeskeyswhichhelpusopenthedo

5、orsofinformationeasily.Withtheclicks,informationcomes.1.Sub-point:Thereasonofpopularizationoftwo-dimensionalcode.a:SupportMaterial:Becauseofthepopularizationofthesmartphones,itisappliedmoreoften.b:SupportMaterial:Socialsoftwarecancreateusers’owntwo-dimensionalcodeswhichmakecontactmucheasier.2.Sub-p

6、oint:Two-dimensionalcodeisappliedinmanyplaces.a:SupportMaterial:Themerchantsuseittoguideconsumptionandletcustomersknowtheinformationofproductsandservice.b:SupportMaterial:Logisticscentersuseittoknowthepositionofparcels.c:SupportMaterial:Passports,IDcards,membershipcardsallhavetwo-dimensionalcodesto

7、inputinformationassoonaspossible.C:ThirdMainPoint:Itisconvenientbutitisahiddendisaster.1.Sub-point:Itcanbeusedbylawbreakers.a.SupportMaterial:QRcodeistheabbreviationofquickresponsecode.Itisusedtohelpusersto