A framework and a library are both reusable pieces of code that are designed to help developers write software more efficiently, but they differ in their purpose, functionality, and usage.
A library is a collection of pre-written code that provides specific functionality that can be used by a developer to solve a problem or add a feature to their software. Libraries are typically called by the developer's code to perform a specific task, and control is handed back to the developer once the task is completed. Libraries are often designed to be used in a variety of contexts and can be combined with other libraries to build more complex functionality.
On the other hand, a framework is a set of guidelines, rules, and conventions that provides a structured approach to building software applications. A framework typically includes a set of libraries, but also includes a set of rules and conventions that dictate how the application should be structured and how different components should interact with each other. Frameworks provide a more comprehensive solution to building software, as they provide a complete structure to work within, rather than just providing individual pieces of functionality.
In summary, libraries are collections of pre-written code that can be used to solve specific problems or add functionality to an application, while frameworks provide a structured approach to building software applications by providing a set of guidelines and conventions in addition to pre-written code.