Give an example of why the world to which programs are exposed is complex and ever changing

For example, an online shopping system, with the development of the economy, changes in the industry, and the modification of marketing strategies will lead to the problem that the current program cannot meet the demand, such as the spelling that has hardly been seen before, since Pinduoduo.

After making this model, Jingdong, **, etc. have added the function of spelling orders. The purpose of the program is to realize the requirements, and obviously the requirements in real life are constantly changing, so the world that the program faces is also complex and changeable. In addition, it is likely that one feature of the program will have product logic or some other function or function.

**Logical conflicts, such as spelling orders and discounts, may require merchants to not enjoy the discount at the same time, so from this point of view, the world of the program itself is also complex and changeable.

Brother, you have a big ocean, it's best for me to copy it.

Facing all kinds of setbacks and difficulties in the world. I don't think we can run away from it. We need to have the determination to overcome it. Only in this way can we achieve greater success! Believe in yourself !

Economic globalization is an inevitable trend in the development of the world economy, and no country can avoid it. China must unswervingly implement the policy of opening up to the outside world, adapt to the trend of economic globalization, actively participate in international economic cooperation and competition, and make full use of the various favorable conditions and opportunities brought about by economic globalization. At the same time, it is also necessary to maintain a sober understanding of the risks brought about by economic globalization, adhere to the principle of independence and self-determination, strengthen preventive work, enhance the ability to resist and defuse them, earnestly safeguard China's economic security, and better develop and strengthen itself. Our country asserts:

The strategic policy of "going out" should be resolutely adopted to enable China to integrate into the regional economy and the global economy as soon as possible, and to make China's economy more flexible and globalized. China needs a "win-win" globalization for all countries in the world, all countries should be the beneficiaries of globalization, the world needs China, and China cannot do without the world!

The topic is one-sided.

1. The objective world is complex and changeable. There are many intricate relationships between things and within things, and at the same time, due to the change of the conditions of the existence of things themselves, it will also lead to changes in the world.

2. The world is objectively complex and changeable, although it is not subject to human will, but human beings have subjective initiative, human beings can correctly understand and transform the world, under the premise of fully respecting objectivity, human beings fully understand things by exerting subjective initiative, and the whole world is knowable.

3. It is necessary to avoid the misunderstanding of understanding, and not to think that the world is unknowable and fall into "agnosticism"; Nor can it be said that everyone's cognitive ability is unlimited, and in a limited life, human understanding has limitations.

This is the basic format of the discernment question: Judgment – Why-How (Summary).

Consciousness has an active role, and people gain understanding through practice, and then react to practice, so that the continuous cycle and continuous change of the objective world fully demonstrate that the world can be correctly recognized by human beings.

However, human understanding is limited by the time, depth, and breadth of practice, and cannot fully understand the world, coupled with the infinite nature of the material world, so human beings have limitations in understanding the world.

Hello dear, first of all, I wish you a happy Valentine's Day! The past is gone, everyone is a world, responsible for themselves, a person who does not cherish your emotions, does not cherish you, is not worthy of your love, is not worth wasting time. Time will dilute everything, finding someone you love and love you is the most important thing, don't be afraid to find a better one.

Don't think too much about the things that were frustrated in the past, people sometimes have lows, and no one can completely control the world. As long as you work hard, you will change the world and have a better tomorrow. Hope for happiness and true love.

And I wish you a happy Valentine's Day and a happy lover! 11

He's going to behave, it's normal.

Just made a decision, and it changed immediately.

Attitudes towards people are unpredictable,,, and they are unpredictable

When a typhoon makes landfall, it can bring violent storms and rain, and strong winds can destroy buildings and damage power and communication facilities. Heavy rains and floods can wash away bridges, houses, farmland, and can also cause geological disasters such as landslides and mudslides.

The rain brought by the landfall of the typhoon can alleviate the drought and have the effect of cooling and cooling the heat.

On the contrary, the real world economic situation is becoming more and more clear and clear, rather than the characteristics of complex and changeable competition and increasingly fierce competition, so the way and direction of response are also simple and clear, rather than imaginary, chaotic, fierce, or changeable. Complicated, or rather messy.

Examples: Windows XP Vulnerabilities and Patches.

Now XP users will go through a process, that is, to find vulnerabilities and then patch, to find vulnerabilities, to patch, to find again, to patch again, and to continue repeatedly, this is the phenomenon, that is, the surface, and what is the essence, that is, the essence is that there will always be vulnerabilities, but each time the vulnerability is different from each patch, never repeated, this will achieve an effect, that is, a more perfect, safer effect, not simply fall down and get up and walk again, but lie down and walk more steadily and faster.

Just like this financial crisis, there have been many financial crises before, but this time it's just on an unprecedented scale, and after this difficulty, everyone will have to think deeply and make some better and more suitable adjustments in all aspects, so that there will be no financial crises of the same cause, things will change, and the essence of change is for the better.

I'm very sorry, I don't know if there are 200 words, I don't know if there are 200 words).

The law in the process of understanding is the connection between the essence of things, which is hidden deep in them, while phenomena are the external manifestations of things, and knowing phenomena is not the same as knowing the essence. But essence and phenomenon are closely linked. Any essence must be expressed through certain phenomena, and any phenomenon is also the manifestation of essence in a certain aspect.

The phenomena of things and their connection with their essence are intricate, and in order to grasp the essence, we must learn to analyze and discriminate. Generally speaking, phenomena are manifested as "many", while essence is "one", that is, there are multiple phenomena of the same essence that represent it from different sides. Truth expresses the essence from the front, and illusion expresses the essence from the negative side in a distorted and upside-down way.

So the illusion is deceptive.

In short, to understand objective things, we can neither directly understand the essence without the phenomenon, nor can we make the understanding stay at the superficial phenomenon, but must understand the essence through the phenomenon and grasp the law.

A brief introduction, I hope it will be helpful to you.

Everything has an apparent phenomenon and its inner meaning. The superficial phenomenon, that is, the first feeling given to people by this object, we can initially understand and perceive it through vision, touch, taste, sensation and other aspects; The inner meaning, that is, the essence of the thing and the truth it contains, as well as the extended meaning, are the results that we can obtain by studying and understanding them on the basis of our preliminary understanding. Therefore, knowing is a process of grasping the essence through phenomena.

For example, the Sui Dynasty fell after only two generations, and at first glance we would think that it was Yang Guang's wanton and brutal actions. On this basis, if we connect with the collapse of the previous dynasty, we can find that the most fundamental reason is because of the people's aspirations. The people want to have a peaceful and stable life, and whoever can bring them these things they will support, otherwise they will oppose it, and the ultimate is to overthrow the dynasty.

I love history, so I'll take this as an example, hehe).

Recognize control. Eagle scratches the word rabbit.

If an eagle soaring in the sky wants to catch a rabbit running on the ground, it must adjust its position and speed up the force of the ambush. Correction of deviations, (deviations due to the climate.) The speed of the rabbit increases. Eagle dive angle. and other factors. ) to succeed.

We do things well and reach a new level, and in this regard, we must also follow the prescribed procedures, carefully plan, and correct deviations, so as to successfully complete the task and achieve the goal.

Through"Control. Eagle scratches the word rabbit. "This phenomenon recognizes that control requires the correction of deviations.

1.Information Hiding and Encapsulation Features:

Encapsulation encloses the process and the data, and access to the data can only be done through a defined interface. Object-oriented computing begins with the basic idea that the real world can be depicted as a series of fully autonomous, encapsulated objects that access other objects through a protected interface.

2.Inheritance: Inheritance is a hierarchical model that connects classes, allows and encourages the reuse of classes, and provides a way to explicitly articulate commonalities. A new class of an object can be derived from an existing class, a process known as class inheritance. The new class inherits the characteristics of the original class, and the new class is called a derived class (subclass) of the original class, and the original class is called the base class (parent class) of the new class.

A derived class can inherit methods and instance variables from its base class, and the class can modify or add new methods to make them more suitable for specific needs.

3.Combined features.

Compositions are used to represent the "whole parts" relationship of a class. For example, the console, monitor, keyboard, and mouse are combined into a single computer.

4.Dynamic properties.

1) Abstraction: Abstraction is about ignoring those aspects of a topic that are not relevant to the current goal in order to pay more attention to the aspects related to the current goal. Abstraction does not intend to understand the whole problem, but only to select a part of it, and not to use some of the details for the time being. Abstraction includes two aspects, one is process abstraction and the other is data abstraction.

2) Polymorphism:

Polymorphism refers to allowing objects of different classes to respond to the same message. Polymorphisms include parametric polymorphisms and inclusion polymorphisms. Polymorphism language has the advantages of flexibility, abstraction, behavior sharing, and sharing, which solves the problem of application functions with the same name.