Why use a frame

The reasons for using a framework are based on the following points:
1. Reduce labor costs: employees do not need to know too much about the underlying things, and the required knowledge is small, which reduces the cost of training and avoids the flow of personnel having too much impact on the company's business.
2. Code separation, reduce the impact of the employee's business logic code, and avoid new or low-level employee code causing major problems in the entire product.
3. Code reuse, clear structure, and conducive to code reuse,
4. Rapid development, it is easy to build another project.
What are the disadvantages of using a framework:
1. If the framework encapsulates the code too much, it will have the opposite effect of inefficiency.
2. The knowledge of employees is narrow and gradually reduced to mediocrity, which is not conducive to the development of technology.
Related blog
http://feipigwang.iteye .com/blog/1203784