Thebeautyofsoftwareisinitsfunction,initsinternalstructure,andinthewayinwhichitiscreatedbyateam.Toauser,aprogramwithjusttherightfeaturespresentedthroughanintuitiveand(作答此空)interfaceisbeautiful.Toasoftwaredesigner,aninternalstructurethatispartitionedinasimpleandintuitivemanner,andthatminimizesinternalcouplingisbeautiful.Todevelopersandmanagers,amotivatedteamofdevelopersmakingsignificantprogresseveryweek,andproducingdefect-freecode,isbeautiful.Thereisbeautyonalltheselevels. Ourworldneedssoftware--lotsofsoftware.Fiftyyearsagosoftwarewassomethingthatraninafewbigandexpensivemachines.Thirtyyearsagoitwassomethingthatraninmostcompaniesandindustrialsettings.Nowthereissoftwarerunninginourcellphones,watches,appliances,automobiles,toys,andtools.Andneedfornewandbettersoftwarenever(72).Asourcivilizationgrowsandexpands,asdevelopingnationsbuildtheirinfrastructures,asdevelopednationsstrivetoachieveevergreaterefficiencies,theneedformoreandmoreSoftware(73)toincrease.Itwouldbeagreatshameif,inallthatsoftware，therewasnobeauty. Weknowthatsoftwarecanbeugly.Weknowthatitcanbehardtouse,unreliable,andcarelesslystructured.Weknowthattherearesoftwaresystemswhosetangledandcarelessinternalstructuresmakethemexpensiveanddifficulttochange.Weknowthattherearesoftwaresystemsthatpresenttheirfeaturesthroughanawkwardandcumbersomeinterface.Weknowthattherearesoftwaresystemsthatcrashandmisbehave.Theseare(74)systems.Unfortunately,asaprofession,softwaredeveloperstendtocreatemoreuglysystemsthanbeautifulones. Thereisasecretthatthebestsoftwaredevelopersknow.Beautyischeaperthanugliness.Beautyisfasterthanugliness.Abeautifulsoftwaresystemcanbebuiltandmaintainedinlesstime,andforlessmoney,thananuglyone.Novicesoftwaredevelopersdon'tunderstandthis.Theythinkthattheyhavetodoeverythingfastandquick.Theythinkthatbeautyis(75).No!Bydoingthingsfastandquick,theymakemessesthatmakethesoftwarestiff,andhardtounderstand,Beautifulsystemsareflexibleandeasytounderstand.Buildingthemandmaintainingthemisajoy.Itisuglinessthatisimpractical.Uglinesswillslowyoudownandmakeyoursoftwareexpensiveandbrittle.Beautifulsystemscosttheleastbuildandmaintain,andaredeliveredsoonest.
A.Simple B.Hard C.Complex D.duplicated正确答案A
