好的!我用Java和C#编写了相同的代码，但输出不同!classA{publicvoidprint(){Console.WriteLine("ClassA");}}classB:A{publicvoidprint(){Console.WriteLine("ClassB");}}classProgram{staticvoidMain(string[]args){Aa=newB();a.print();Console.Read();}}输出:A类。它在C#中。但是当在Java中运行相同的代码时，输出是B类。这是Java代码:classA{publicvoidprint(){System
回答后this问题，我对使用Android的AsyncTask类的get()方法的意义/有用性有疑问。publicfinalResultget()Waitsifnecessaryforthecomputationtocomplete,andthenretrievesitsresult.基本上，是AsyncTask类的同步解决方案，它会阻塞(卡住)UI，直到后台操作完成。除了测试目的之外，即使在那些情况下，我也无法真正想到它实际上是一个好的解决方案，但我可能错了，所以我感到好奇。如果您需要用户真正等到AsyncTask完成，您可以显示一个Dialog或ProgressDialog，随时控
Ruby1.9.3、Rails3.1.10、RSpec2.13.0、Capybara2.2.1我正在为Rails3应用程序编写测试——一个供客户(和管理员)配置各种电话设置的GUI。我已经编写了6个左右的规范文件，之前还编写了很多其他文件(我将其用作模板)。以下是规范文件的快照。#spec/features/admin/administrators_spec.rbrequire'spec_helper'includeAdministratorHelperincludeHelpersfeature"ExerciseAdministratorspage"include_context"sh
InternetofVehicles（IoV）isatypicalapplicationofIoTtechnologyinthefieldoftransportationsystems.Tosomeextent,theintegrationlayoutandcollaborativedevelopmentofrelevanttechnicalfieldsinvolvedintheIoVindustryareconnectedwiththeIoT.AsanopensourceIoTdatainfrastructuresoftwaresupplier, EMQ hasprovidedIo
InternetofVehicles（IoV）isatypicalapplicationofIoTtechnologyinthefieldoftransportationsystems.Tosomeextent,theintegrationlayoutandcollaborativedevelopmentofrelevanttechnicalfieldsinvolvedintheIoVindustryareconnectedwiththeIoT.AsanopensourceIoTdatainfrastructuresoftwaresupplier, EMQ hasprovidedIo
IntheIoVecology,TSP(TelematicsServiceProvider)platformoccupiesthecorepositionintheindustrychain.Itconnectsautomobileandvehicle-mountedequipmentmanufacturers,networkoperators,andcontentproviders.Itisthecoredataconnectionplatformforvehiclesandservicesoftheoriginalequipmentmanufacturer(OEM).Withthedeve
IntheIoVecology,TSP(TelematicsServiceProvider)platformoccupiesthecorepositionintheindustrychain.Itconnectsautomobileandvehicle-mountedequipmentmanufacturers,networkoperators,andcontentproviders.Itisthecoredataconnectionplatformforvehiclesandservicesoftheoriginalequipmentmanufacturer(OEM).Withthedeve
