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# UniApp Tutorial !(#) UniApp is a front-end framework for developing cross-platform applications using Vue.js, developed and maintained by DCloud. The core goal of UniApp is "write once, run everywhere", which greatly improves development efficiency and reduces the workload of multi-platform adaptation. The emergence of UniApp greatly improved development efficiency and reduced the cost of multi-end development. UniApp uses Apache License 2.0 open source protocol, allowing developers to freely use, modify and distribute code. * * * ## What You Need to Know Before Learning This Tutorial Learning UniApp requires a basic knowledge of HTML, CSS, JavaScript, and Vue.js. If you have already mastered these skills, learning UniApp will be very easy! If you haven't fully mastered them yet, don't worry. You can first familiarize yourself with them in the tutorials below: UniApp code writing, the basic languages include js, vue, css, as well as ts, scss and other css preprocessors. The core advantage of UniApp lies in its cross-platform capability. Traditional development methods require writing different code for each platform, but UniApp adapts to multiple platforms through a single codebase, reducing repetitive work. * * * ## UniApp Applications UniApp is a cross-platform development framework based on Vue.js, developed and maintained by DCloud. It allows developers to use a single codebase to publish to multiple platforms, including: * **WeChat Mini Program** * **H5 Web** * **Android and iOS App** * **Alipay Mini Program** * **Baidu Mini Program** * **ByteDance Mini Program** * **Quick App** * **QQ Mini Program** * **360 Mini Program** * And many more platforms. * * * ## Comparison Between UniApp and Other Frameworks | Feature | UniApp | Taro | Flutter | React Native | | --- | --- | --- | --- | --- | | **Development Language** | Vue.js | React | Dart | JavaScript/TypeScript | | **Cross-Platform Support** | Mini Program, H5, App | Mini Program, H5, App | Android, iOS, Web | Android, iOS | | **Performance** | Near Native | Medium | High Performance | Medium | | **Learning Cost** | Low (Vue.js syntax) | Medium (React syntax) | High (