Answer: C. Non-web development frameworks or libraries.
Answer analysis: In this question, we need to identify which one is not suitable for building websites with interactive functions. We can analyze each option one by one:
A. Plain text editor (such as Notepad):
Although the functions of plain text editors such as Notepad are relatively simple, they are enough to write basic web development languages such as HTML, CSS, and JavaScript. These languages are necessary to build websites with interactive functions.
Developers can use Notepad to write code and then view and test the effects of these codes through the browser. Therefore, plain text editors are one of the basic tools for building websites, especially for those who are just starting to learn web development.
B. Non-web design software (such as Photoshop, Illustrator):
Non-web design software such as Photoshop and Illustrator are mainly used for graphic design, image processing, and typesetting. They are not directly used to write interactive function codes for websites. However, these tools play an important role in the website development process because they can be used to create the visual elements of the website (such as pictures, icons, and layout designs).
Later, these design elements can be integrated into the website through web technologies such as HTML, CSS, and JavaScript. Therefore, although these tools are not directly used to write interactive features, they are essential for creating attractive website interfaces.
C. Non-web development frameworks or libraries:
Web development frameworks and libraries provide predefined functions, classes, and other structures required to build websites, which can greatly simplify the development process, especially when it comes to complex interactive features.
However, choosing a non-web development framework or library to build a website with interactive features will be a huge challenge because these tools may not contain the key components and functions required to build web interactive features.
D. Obsolete or no longer supported technologies:
Although using obsolete or no longer supported technologies to build websites may cause compatibility and maintenance issues, it does not mean that they cannot be used to build websites with interactive features at all.
In fact, as long as these technologies can still run in certain environments and developers are willing to invest extra time and effort to solve compatibility issues, they can still be used to develop websites.
However, from the perspective of best practices and long-term maintenance, using currently supported and updated technologies is obviously a wiser choice.
In summary, the least suitable option for building websites with interactive features is option C - non-web development frameworks or libraries. Because these tools do not contain the key components and functions required for Web development, they will greatly increase the complexity and time cost of development.