명령 프롬프트/셸 창을 열고 .py파일이 있는 디렉터리로 이동한후 다음 명령을 사용하여 앱을 빌드합니다.
pyinstaller your_program.py
요구 사항
윈도우
PyInstaller는 Windows 8 이상에서 실행됩니다.그래픽 창 앱(명령 창이 필요하지 않은 앱)을 만들 수 있습니다.
맥 OS
PyInstaller는 macOS 10.15(Catalina) 이상에서 실행됩니다.그래픽 창 앱(터미널 창을 사용하지 않는 앱)을 빌드할 수 있습니다.PyInstaller는 실행하는 macOS 릴리스 및 후속 릴리스와 호환되는 앱을 빌드합니다.두 아키텍처 중 하나의 macOS 시스템에서 또는 하이브리드 범용 2 바이너리를x86_64빌드arm64할수있습니다 .자세한 내용은 macOS 다중 아키텍처 지원을참조하세요.
Developers often find it difficult to choose betweenFluttervsReact Native. Both have been created by the current tech giants of the world,FacebookandGoogle.
But the question of what to use to create these apps has been around for a while.
Flutter
is an open-source UI framework developed by Google in 2017 that aims to design cross-platform apps to run on mobile, Windows, macOS, and Linux as well as on the web. Flutter’s framework is built upon Dart. A lot of big companies like Alibaba, Philips Hue, Hamilton, etc., choose Flutter for development. Moreover, Google frequently provides updates for Flutter, improving its performance with each update.
Advantages of using Flutter
Great UI
Has a number of widgets
Apps are faster
Helps build web apps
Well-structured documentation and community
Helps replicate and create the same UI for different devices
Disadvantages of Flutter
Not native
Apps are larger
Has a limited set of tools
React Native
Facebook developed React Native in 2015. It is an open-source framework that is based on JavaScript. It also provides a similar feature, using the same codebase to create cross-platform apps, thus eliminating the need to compile other technologies for creating mobile apps. Skype, Instagram, Uber Eats, etc., depends upon React Native for development.
Advantages of using React Native
Uses JavaScript
Can create apps for multiple platforms using a single codebase
Understands the importance of code reusability and promotes it
Growing and active community
Helps in accelerating coding time
Disadvantages of using React Native
Not native
Does not provide innovative, out-of-the-box components
Limited choices
Abandoned libraries and packages
UI can be hampered easily and needs to undergo vigorousUI testing
Larger apps
Differences between Flutter vs React Native
React Native and Flutter are amazing choices for developing a cross-platform application, however, they share several differences which make them unique from each other.
One major difference is the programming languages both frameworks use. React Native is based on JavaScript and uses JSX. However, Flutter uses Dart programming language.
The architecture for both frameworks differs. Flutter uses a 2D graphic rendering library, Skia, whereas, React Native uses the Flux architecture, which also requires JavaScript bridging. Here, JavaScript bridging is necessary for React Native to allow JavaScript and Native code to interact with each other. However, there is no programming bridge in Flutter.
FlutterandReact Nativedocumentation guides are very good. However, Flutter shares more organized and structured documentation. React Native documentation is poorly maintained because it depends heavily on third-party libraries.
Installing Flutter requires you to download the binary from GitHub and also to set up the environment variables on your system. On the other hand, React Native is installed using node package manager (NPM) with one command on your terminal.
Flutter relies on its developed widgets for customization, whereas React Native incorporates third-party customization components. Therefore, flutter offers more compatibility. Moreover, Flutter development is solely constructed upon Widgets, whereas React Native uses JSX.
React Native has better support for 3D, whereas, Flutter does not support 3D.
Conclusion :
This blog explains the reasons behind the great popularity of the two emerging frameworks Flutter and React Native, for creating cross-platform applications. Flutter and Native solve the issue of creating separate code for native platforms like Android and iOS. Now, you can create an application for all the platforms using entirely the same code.
Moreover, picking the best framework for yourself depends upon your experience, requirements, and the business needs of your project. If you’re already aware of the JavaScript programming language, then there’s no doubt that React Native is a good choice. However, if you’re targeting a highly stable and fast performance, Flutter has several advantages over React Native.
select a.컬럼1, b.컬럼1
,a.컬럼2, b.컬럼2
,a.컬럼3, b.컬럼3
,a.컬럼4, b.컬럼4
FROM 테이블1 a inner join 테이블2 b on a.컬럼1 =b.컬럼2 and a.컬럼1_1=b.컬럼2_2
where a.컬럼 = 조건
2. ,을 =로 바꾸주고 바로 update 해준다.
update a set a.컬럼1 = b.컬럼1
,a.컬럼2 = b.컬럼2
,a.컬럼3 = b.컬럼3
,a.컬럼4 = b.컬럼4
FROM 테이블1 a inner join 테이블2 b on a.컬럼1 =b.컬럼2 and a.컬럼1_1=b.컬럼2_2
where a.컬럼 = 조건
