Logic and function

Usually, we will face a situation that the code has to be functional and accurate, but sometimes there is a tradeoff. For example, maybe you want to pass the unit test, so you put a lot of effort on debugging, even delete some functions to let it run. However, this might not (and usually) be the one you like, because there’s a gap between the code and the imagination. In short, it is sometimes difficulty to take care of both function and logic at the same time. I will suggest that a user focus on the logic first and then fix the function. More topics will be covered later.