objective-c是什么？

Objective-C是一种面向对象的编程语言，由Brad Cox和Tom Love于1980年代初开发。它是C语言的一个扩展，增加了面向对象编程的特性。Objective-C主要用于开发苹果公司的操作系统（如iOS和macOS）以及相关的应用程序。

Objective-C具有C语言的语法和特性，但也引入了Smalltalk风格的消息传递机制。与其他面向对象的语言不同，Objective-C通过向对象发送消息来实现方法调用。它支持类、对象、继承、多态、封装等面向对象的概念，并提供了一套丰富的类库和框架，如Foundation框架和Cocoa框架，以便开发人员构建各种应用程序。

Objective-C在苹果公司的开发环境中被广泛使用，特别是在iOS和macOS应用程序的开发中。然而，随着Swift语言的引入，Objective-C的使用逐渐减少，但仍然存在大量的Objective-C代码库和项目。

相关问题

objective-c是什么

Objective-C是一种面向对象的编程语言，它是C语言的一个扩展。它由Brad Cox于1980年代开发，并在NeXT公司的操作系统NeXTSTEP中得到了广泛应用。Objective-C具有C语言的特性，同时还增加了面向对象编程的能力，包括封装、继承和多态等特性。Objective-C被广泛用于苹果公司的操作系统(iOS和macOS)的应用程序开发，特别是在使用Cocoa框架进行开发时。

Objective-C

Objective-C is a high-level, object-oriented programming language that was developed in the early 1980s. It is primarily used for developing applications for Apple's macOS and iOS operating systems. Objective-C is an extension of the C programming language and adds support for object-oriented programming features such as classes, methods, and inheritance.

Objective-C was originally developed by Brad Cox and Tom Love at Stepstone Corporation. It was later acquired by NeXT Computer, where it was used as the primary programming language for the NeXTSTEP operating system. When NeXT was acquired by Apple in 1997, Objective-C became the primary language for developing applications for macOS and iOS.

Objective-C is known for its dynamic runtime system, which allows for features such as method swizzling and dynamic class loading. It also supports a message-passing syntax, which allows objects to communicate with each other in a highly dynamic way.

In recent years, Objective-C has been largely supplanted by Apple's newer programming language, Swift. However, Objective-C is still widely used in legacy code and in certain specialized applications.