In this way, in the next few days, Pang Xiaonan accompanied Zhao Sijiajia to practice fighting in the morning, and Zhao Sijiajia accompanied Pang Xiaonan to practice dodging bullets. Pang Xiaonan's dodging skills gradually improved. In the end, even if he did not turn on his spiritual consciousness, he could easily avoid the shooting of plastic bullets, so he asked Zhao Sijiajia to speed up his aiming speed.

While shooting Pang Xiaonan, Zhao Sijiajia became more and more skilled in her dodging skills, and her own shooting skills have also improved greatly. She can basically be able to let the gun go at will without deliberately aiming.

In the past few days, Pang Xiaonan has never left Hailong Community. He is worried that Nangong Jim will hire other killers to wait for him outside. At the same time, he called Xiong Junjun and told her that she must not leave the school if she has nothing to do. The school is managed in a closed manner, at least safer than outside.

One afternoon, Pang Xiaonan received a message from the old blacksmith, saying that the flying knife had been built and he wanted him to have time to go and get it. Pang Xiaonan was so happy, "I finally got a handy weapon!"

"No matter what, I have to go out!" Thinking of this, Pang Xiaonan didn't care about any gunman outside. With his current cultivation level, as long as the other party does not fire a ghost, he has the ability to avoid at least one shot. If he can avoid it, he can have the opportunity to escape or even find an opportunity to counterattack.

Pang Xiaonan dressed up a little, and took the one who went to Hehai Building as a model, and tried to dress up as tall as possible, so that the killer could not recognize him so easily.

Then he made a little hairstyle. There was no Mos at home. He took an egg and beat it into a bowl, then applied the egg liquid to his hair, combed it back, and made a big back head, "Well, I have a bit of a big brother style."

When Pang Xiaonan left the door, he drove the shepherd towards the old city. He did not find anyone following along the way, so he parked the car not far from the blacksmith shop with confidence, and then walked towards the blacksmith shop with vigilance.

The old blacksmith was tinging on a red iron piece. When he saw Pang Xiaonan coming in, he kept stopping and said to Pang Xiaonan: "You sit for a while, I will come over after I finish this iron."

Pang Xiaonan casually picked up a bench, chose a position facing the door and sat down. The temperature in the blacksmith shop was really high. He kept slapping the wind with his hands, staring at the world outside the door. The light was a little dazzling. After a while, he felt his eyes were a little blurry, so he withdrew his gaze and stared at the door frame.

"What are you looking at?" The old blacksmith finally finished his work and walked towards Pang Xiaonan.

"It's nothing. Look at the scenery outside the door. There is a dog there." Pang Xiaonan pointed outside the door. There was indeed a dog. It should be two dogs doing ancient sports, one up, one forward and one behind, very rhythmic.

"Haha, so you like to watch this." The old blacksmith handed it to Pang Xiaonan with a belt, then copied a stool and placed it next to Pang Xiaonan, and then went to get his hookah.

Pang Xiaonan said, "I don't like to see wherever I am. They don't look at the place, and just hit me." He took the old blacksmith's belt in his hand and looked carefully.

This belt is light brown and yellow, and it can be seen that it is the original color of cowhide. It has a simple buckle and several holes are made of the belt to facilitate buckle. Unlike ordinary belts, the middle part of the belt is relatively wide and has a two-layer design. There is a certain gap between the two leathers. A flying knife is inserted into it. The handle of the flying knife is exposed outside. It is made of pure copper. It has simple patterns on it to facilitate increasing the friction of the fingers.

Pang Xiaonan pulled out a flying knife. The blade was covered with the strange and beautiful black of the spirit stone. It flashed with a breathtaking light under the reflection of the fire. The blade was embedded in the pure copper knife handle of the earthy yellow. The whole knife looked simple and gorgeous. If it were seen by ordinary people, they would think that this was a cultural relic unearthed there.

Pang Xiaonan gently stroked the side of the blade on his fingers, and he could feel the sharpness of the blade. He stretched out his thumb and index finger, pinched the knife and aimed the blade vertically at the ground, then let go of his hand, and the tip of the flying knife fell down, and the flying knife penetrated straight into the ground.

"Awesome!" Pang Xiaonan exclaimed sincerely. A normal knife fell to the ground and at most a mark was made on the ground. This flying knife could be inserted into the ground. One is the sharpness of the tip of the knife, the other is the creation of the flying knife is very precise and can maintain the balance of the blade body. The third is the special material of the spirit stone, without the toughness of metal, it is harder than iron.

Pang Xiaonan pulled out the flying knife from the ground, brushed the light dust from the knife with his fingers again, turned his head and said to the old blacksmith: "Old man, your flying knife is so great."

The old blacksmith smiled and said, "Your material is better. It's the first time I've encountered a rare material like you in so many years. To be honest, the hardness of your material may be many times greater than that of steel. I have scrapped many pieces of sand plates that I have polished. But after I made it, I tried it and it was as fake as a sludge."

Pang Xiaonan inserted the flying knife into the belt and said, "The materials are good, but in the final analysis, your skills are good. I won't talk about the workmanship of the flying knife. Just this belt is the level of being able to attend fashion conferences. Old man, I thought you were just a blacksmith, but you still know fashion design."

Pang Xiaonan is not a flattering word. The design and workmanship of this belt are no less than those seven flying knives. It has both practicality and fashion style. As well as this pure natural material, every detail shows the designer's profound skills.

The old blacksmith waved his hand, raised the corners of his mouth, and the wrinkles on his face became more profound. "You kid, don't say beautiful words. My belt is just tailor-made based on the characteristics of the flying knife. There is no design or design. However, when you insert the flying knife, be careful not to cut the leather surface. Although I am the top-level cowhide, your flying knife is too sharp. If you always cut the leather surface, the belt will be greatly exhausted."

Pang Xiaonan nodded and said, "Well, I understand. I will take good care of belts. Old man, I admire you more and more. I thought you were just a simple blacksmith. Now it seems that you are an all-round design talent. I asked you to make a few flying knives. You even considered the matching knife cover and how to carry it easily. I admire you."

As he said that, Pang Xiaonan stood up, buckled the belt around his waist, jumped gently, tried the comfort and tightness, and said, "Well, it's good, it's quite suitable."

"It's good that it's right. I've also carefully measured your size, so I made a few more holes to facilitate your adjustment." The old blacksmith lit the cigarette and started smoking.

"Old man, aren't you curious about what I'm using for this flying knife?" Pang Xiaonan took off the belt, sat back on the stool, and placed the belt on his thigh.

The old blacksmith smoked a cigarette until a troubling of tobacco turned into ashes. Then he took off the pipe and knocked the tobacco on the floor. He said to Pang Xiaonan: "I usually don't ask the purpose of the customer. Haha, it is definitely not fun to hit this flying knife. This is a weapon for killing in the hands of people with high martial arts skills. So I would like to advise you that it is best to use it less often. As long as you take action, this thing will cause irreparable damage and consequences."

Pang Xiaonan smiled, stood up and said, "Don't worry, old man, I will not use this flying knife unless I have to. Just as you said, once the flying knife is used, the consequences will be irreversible. Thank you, I'll leave first."

Pang Xiaonan took out his cell phone, opened the flying falcon and transferred the fee to the old blacksmith. He took the flying knife and took the blacksmith shop and returned home excitedly.

The first thing he did when he entered the door was that Pang Xiaonan ran into the practice room, and he wanted to try the power of the flying knife.

When he arrived at the practice room, Pang Xiaonan looked around and thought about what to use as a target. After thinking about it, he would try it with an apple first. So he trotted into the kitchen, took out an apple from the refrigerator, and trotted back to the practice room.

Pang Xiaonan carefully placed the apple on the bench, then walked to a place ten meters away from the apple, concentrated his mind and positioned the apple in his mind.

Then, Pang Xiaonan tied the belt around his waist, took out a flying knife from the leather case with his right hand, and set his eyes on Apple again.

Two seconds later, a shiny light flashed in Pang Xiaonan's eyes, then he swung his right hand and a flying knife flew out. With a "bang", the apple broke into pieces, and the flying knife was inserted straight into the wall behind the apple.

"It's so amazing!" Pang Xiaonan was very satisfied with the power of the flying knife, because this time he threw out the flying knife, relying solely on the power of the flying knife itself, without infusing any spiritual power, and the effect of breaking the apple into slag was already unexpected.

"Apple is too crispy. Are there any harder targets to try?" Pang Xiaonan looked around in the training room again. Unfortunately, after watching for a long time, he didn't see anything suitable for targets, so he remembered the chopping board in the kitchen.

"Hey, the chopping board is made of wood, which is much harder than apples. Yes, let's try it with the chopping board." So Pang Xiaonan trotted into the kitchen, took the chopping board from the dining table, and then trotted back to the practice room.

However, this chopping board is not as easy as apples, and it cannot be steadily placed on the bench. Later, Pang Xiaonan thought of a way to use the armrests and backrests of the bench to place the chopping board horizontally in the middle, and form a triangle with the armrests and backrests.

It is equivalent to the side of the bench facing Pang Xiaonan, and the cutting board is a side on this side. In this way, the cutting board is steadily placed, but the difficulty of aiming increases, because Pang Xiaonan can only aim at the thickness of the cutting board, rather than the surface of the cutting board.

"Don't worry, I'm just practicing my accuracy." Pang Xiaonan walked to the opposite side of the bench, about eight to nine meters away from the chopping board.

This time, Pang Xiaonan first touched the flying knife, used his spiritual sense to position the chopping board, and then poured the spiritual sense into the flying knife in his hand, staring at the chopping board for 1 second, then suddenly shook his hand, and the flying knife broke out into the air, making a sharp roar. There was only a loud "bang" sound, and the chopping board was split in all directions, and Pang Xiaonan felt a little excited.

When the chopping board was broken, Pang Xiaonan walked up. He found that the chopping board was not as simple as splitting, and it could be described as broken bones. It was difficult to find a piece of wood larger than 5 cm square. "Well, with the flying knife with spiritual power, the effect is amazing. It should be no problem to penetrate a person's body."

Pang Xiaonan was not satisfied and wanted to try the last one. He glanced around in the practice room. Finally, his eyes were frozen on the huge sandbag.

"Well, this one is good, at least the size is about the same as the real person." The sandbag in Pang Xiaonan's training room is much larger than ordinary sandbags. In addition, the sand weighs nearly 200 kilograms, and it is difficult to make the sandbag swing a little with one punch.

"It's you." This time, Pang Xiaonan didn't even look at it, but directly took out a flying knife from his belt and swung his hand, and threw it out in one go. While swinging the flying knife, he had already quickly inputted his spiritual power into the flying knife in his mind.

There was another loud "bang", as if the sound of a bomb burst, the entire sandbag was exploded! The sand in the sandbag flew around, forming a huge cloud of smoke. The practice room was suddenly filled with dust, which made Pang Xiaonan cough repeatedly and couldn't even open his eyes.

It was not until a long time later that the dust from the sandbag exploded calmed down and fell on the ground to form a thick dust. Seeing the mess in the ground, Pang Xiaonan was excited and regretful, "Damn, if I had known that the power was so great, I really shouldn't have used it as a target. The ash on this ground would have to be cleaned."

The floor of the practice room was covered with wood chips, sand and dust, which was even more messy than the decoration site. Pang Xiaonan had no choice but to hold the broom and garbage basin and started cleaning with one hand and one foot, mixed with the sound of coughing that he was choked by the dust.

While cleaning, Pang Xiaonan felt the phone in his pocket vibrating, and then the phone ringing sound came out. Pang Xiaonan took out his cell phone and saw that it was Mr. Wang's call.

"Hey, Lao Wang, what advice do you have?...What, treat me to dinner, OK, 6 o'clock in the evening, OK, see you." After hanging up the phone, Pang Xiaonan's mood improved a little. Although cleaning the room made him a little tired, the supper was settled, which made his stomach feel a little more relieved.

It took nearly two hours to clean the whole floor of the training room. Although the whole room was still polluted by dust and was a little dirty, Pang Xiaonan fell out of the bench and exhaled a long breath of turbid air, "No, let's do it, let's do it, anyway, there is no need to use the training room to sleep, let's do it, let's do it."

He had no patience to ask him to take a rag to clean the whole house. Pang Xiaonan rested on the bench for a while, rushed out of the shower room with dust, changed into a clean set of clothes, and walked out while humming a small tune, slowly walked to Wang Zhengzheng's villa.

When I knocked on the door, Su Xiaomei came to open the door. When I saw it, Pang Xiaonan was like a relative who had not seen for a long time, he greeted warmly: "Xiaonan, come in quickly, Member Wang is waiting for you to have dinner."

Pang Xiaonan was not polite, and walked straight to the restaurant. He saw that the table was ready, but Mr. Wang was not next to the table. He knew that Mr. Wang was still in the study room upstairs, so he walked to the stairs and shouted at it: "Lao Wang, it's time to eat, Lao Wang..."

After a moment, he heard the footsteps coming from the building. Member Wang replied at the top of his voice: "Here's here..."

Pang Xiaonan and Mr. Wang both left their seats. Su Xiaomei went to the side hall to have dinner with the servants, leaving only Pang Xiaonan and Mr. Wang in the restaurant, because she knew that the two must have something to discuss.

Pang Xiaonan was not polite, so he picked up a piece of meat and chewed it in his mouth. At the same time, he asked, "Where is Brother Peng, are you not back?"

Member Wang poured wine on the side and said, "He usually doesn't come back to have dinner. Although he doesn't go out for social events, there are always some dinner parties. Even if there is no dinner, he will work until very late. After all, there are too many things in such a large company."

Pang Xiaonan nodded frequently, "Well, the meat this time is good, it is fat but not greasy and chewy, and the meat is full of meat. It's a pity that Brother Peng doesn't have this good taste."

Congressman Wang pushed the fallen ones to Pang Xiaonan and said, "I heard that you have been targeted by a killer recently?"

Pang Xiaonan nodded and said, "It was Peng Yuyan who told you, yes, it was because he was targeted by a killer, and he was a master who used guns. He almost said goodbye to you."

Member Wang raised his glass of wine and said, "If you survive the disaster, you will have good fortune. Come and drink a glass of wine to suppress your shock."

Pang Xiaonan also raised his cup, touched Member Wang for a moment, and said, "Thank you for your good words, come on, let's do it."

The two of them drank all over, and Congressman Wang asked with concern: "What? Do you really need me to help you solve this killer?"

Pang Xiaonan grabbed a handful of vegetables and chewed them, shook his head and said, "No, even if you help me solve this killer, will the person who hired him stop? The killer is not the root cause. I have to find a way to solve this guy who always causes trouble for me. Besides, I tell you, now I am no longer afraid of gunmen, at least I won't be as embarrassed as before."

"Is that right?" Mr. Wang also picked up a handful of vegetables and put them in his mouth. "You went to buy a gun? Even if you have a gun, if you want to practice shooting skills, there must be a process. The masters in shooting skills cannot be practiced overnight."

Pang Xiaonan picked up a piece of fried tofu and put it into the bowl and said, "It's not that I bought a gun. I prepared a set of hidden weapons. Although I can't talk about using the gun, I still play this hidden weapon very well. I will try it next time. It depends on whether his gun is fast or my hidden weapon has great power."

"Dark weapon? You can think of it!" Congressman Wang pointed at Pang Xiaonan, "No matter how good the hidden weapon is, it is not as powerful as a gun. Do you think it is still the era of cold weapons, and you can dominate the world with a hidden weapon?"

"Forget it, you don't understand it even if you say it. Just understand that my hidden weapon is almost the same as an ordinary pistol." Pang Xiaonan knew that he would not believe it even if he explained to Member Wang. It would be better to just bury a suspense, "Eat vegetables, the meat is really good this time."

"Anyway, be careful, there is really no way. I will solve the mastermind behind you. I don't want to watch you die young." Congressman Wang wanted to help Pang Xiaonan from the bottom of his heart.

"Look at what you said, you are depressed. Why are you dead young? I'll spit!" Pang Xiaonan spitted a lot to the side before turning his face, "Don't worry, I can solve it. You can't bother you in everything." Pang Xiaonan really didn't want to ask someone to help you when encountering something, because they could help for a while, but they couldn't help for a lifetime. Even if something happened, it was destined.

The two no longer talk about the killer. Mr. Wang brought good news to Pang Xiaonan, "I have a good idea here for the charity fund you mentioned last time to find a college student entrepreneurship project you are looking for. Today I specially asked you to come here to refer to it and see if it is feasible."

"Oh?" Pang Xiaonan was in high spirits, raised his glass toast to Mr. Wang, and then poured a glass of wine respectfully and pushed it to Mr. Wang, "Tell me quickly, what is a good project."

Mr. Wang cleared his throat and said, "That's right. A young man came to me two days ago and said he had a good idea and wanted to get my investment. So I asked him to meet him and learned about the project in detail. This young man is a computer professional and has experience working in a large network company before. His main position is product manager, that is, Internet companies are responsible for developing products. He has now seen a trend, which is big data. He believes that the future development of this world will definitely be based on big data, so he wants to develop an information product that uses big data to push messages."

Member Wang paused and scooped a bowl of soup. Pang Xiaonan was a little impatient and said, "What kind of product is it? Tell me quickly."

"What's the hurry? Wait for me to moisten my throat." Mr. Wang picked up his bowl and whispered the soup. "His product is different from previous mobile software. When you look at the apps on our mobile phones, they basically actively push some information to you. When you look at the news on the homepage, they are basically political news from the country. His app is different. He will use big data to analyze your preferences, and then selectively push the content you like. In other words, what searches have you had or what behaviors you have had on the Internet are recorded by the big data, and the software will intelligently analyze your preferences to push content you are interested in."

"Well, I understand a little bit." Pang Xiaonan nodded, put away his concentrated eyes, and picked up a fried egg and ate it. "It's like I like to eat eggs, so the chef will keep making egg-related dishes for me, such as fried eggs, scrambled eggs, egg soup, steamed eggs, money eggs, etc."

"Yes, that's about that." Congressman Wang was pleased with Pang Xiaonan's ability to understand.

"But there will be a problem here," Pang Xiaonan picked up another fried egg. "Although I like to eat eggs, will I get bored when I eat them every day?"

"I thought of this, too. I asked him that at that time," Mr. Wang also picked up a fried egg and put it in his mouth. "People's interests will change. How do you ensure that this software will always be loved by people? Just like you said, you like to eat eggs, but the chef only knows how to make eggs. Sooner or later you will feel bored and you will fry the cook. The young man replied to me that this software has a mechanism, which is to push the content you are interested in, and at the same time recommend some things that others like to read to you to test whether you like this content too. If you click in and read it, it means that you like this content. Then the software will push information related to this content to you in the future to ensure that you have a steady stream of fresh content you are interested in."

Pang Xiaonan thought for a long time and finally understood the mystery. He pointed to the bowl of refilled meat and said, "Does this mean? I had never eaten refilled meat before, but the chef wanted to recommend this dish to me, so while he frying the eggs, he also fryed a bowl of refilled meat and put it in front of me. He recommended me to try it, so I picked up a piece of refilled meat to try it. As a result, I found that this refill meat tasted good. I ate the whole bowl of refilled meat, so the chef knew that I also liked to eat refilled meat, so in the future he would not only scramble eggs for me, but also stir-fried refilled meat for me."

"Well, the explanation is good, that's the reason." Mr. Wang picked up a piece of cooked meat and chewed it with relish. "Today the chef added a bowl of cooked meat, and tomorrow he may add another bowl of stuffed tofu to test your taste again. So although your interest has been changing, big data can control the change of your interests, so as to respond to your interests in a timely manner and recommend the corresponding content to you."

"Well," Pang Xiaonan nodded, "It's indeed a good idea. Is it difficult to achieve?" He knew that many times the idea is the idea, and when it really needs to be implemented, there will still be many problems.

"That young man told me," Mr. Wang massaged his eyes. "It is not difficult to implement. He has mastered the technology of big data. The key is to constantly adjust the algorithm. I don't know much about what the algorithm is. It may be equivalent to the chef cooking a dish, the proportion of seasonings in it, etc., which means how relevant the content recommended by the software and the content you are interested in. The more precise the algorithm is, the more accurate the things you push, and this is the reason."

"You describe it very well, Lao Wang," Pang Xiaonan immediately understood the meaning of the algorithm. "It is worthy of being with young people often, and it is worthy of being a genius investor. Your understanding is deeper than me. The algorithm you mentioned should be what you describe, which is what you put in, which is what I like, which is what I recommend. Although I like it, I need to figure out how much I like it, why do I like it more and less, and constantly optimize the algorithm to make it worthless to me."

"Yes, it's just to hit your pain point," Mr. Wang pointed at Pang Xiaonan's face with chopsticks, and then changed his words, "No, it should hit your laughter and hit your itch point, making you feel happy and very happy!"
Chapter completed!