In short, the essential reason for the emergence of Jiaozi is that the money supply is not suitable for the market. Why is this discomfort occurring? It was because the economy of Shu was developed at that time, but it encountered war, so the original social system was disconnected.

How developed was the economy of Shu at that time? In this way, during the Tang Dynasty, there was a saying that "Yang Yi Yi Yi" meant that the wealth of Shu was equal to that of Jiangsu. After the Song Dynasty, Yizhou still retained this economic advantage, and was very developed in agricultural products, brocade, paper, sugar and other industries.

When Jiaozi was first produced, its nature was similar to that of "flying money" in the middle of the Tang Dynasty, except that it provided a voucher for deposits and withdrawals in other places. However, with the outbreak of war, the people had no cash, so they could only take out these "bills of exchange" in exchange for food, cloth and other daily necessities. In this way, Jiaozi has the circulation attribute of money. When this kind of behavior was generally accepted among the people, it quickly caused many social problems. Not to mention the fact that the people who have lost their deposits due to the closure of merchants, it is a big social problem just to pirate the lawbreakers.

As these social problems accumulate, so do the lawsuits sent to the government. At this time, it coincided with a promising and upright official who was in charge of the local area. He noticed this problem, so he began to intervene with the power of the government, on the one hand, to improve the risk-taking ability of merchants, and not to suddenly close down and cause market chaos; On the other hand, to improve Jiaozi's anti-counterfeiting ability, it cannot be pirated casually, otherwise Jiaozi will lose its credibility.

Under the careful governance of this official, Jiaozi went from a forced role to a favorite currency used by the people. This naturally squeezed out the living space of the official currency, so the imperial court decided to include Jiaozi in the official official currency after many consultations, and the official unified printing. In this way, the official Jiaozi appeared. The emergence of official Jiaozi not only means that the risk-taking ability and anti-counterfeiting ability are further improved, but also means that this new currency can maximize its potential.

In fact, Li Rui couldn't figure out why he put ancient banknotes in the painting, he didn't bother to ask, as long as it was worth it, he originally thought that spending a million to buy this painting would be charity, but he didn't expect to make him earn so much at once.

At this time, Li Jiangping smiled and said, "Xiaolin, do you plan to sell this painting or not?" If you sell it, can you sell it to me, I'll pay five million for this painting."

Li Rui smiled when he heard this: "Elder Li, how can I ask you so much, if you really want it, I will give it to you." Immediately, Li Rui put the painting in the other party's hand.

For him, affection is more important than money, he knows that Li Jiangping is good, and before Li Jiangping gave him a valuable blue and white porcelain vase.

Li Jiangping waved his hand and smiled: "If you don't collect money, then I definitely don't want it, five million is so decided!"

The two pushed back and forth, Li Rui originally only charged him for the auction price of 1 million at that time, but Li Jiangping finally gave 1.88 million, and Li Rui was not polite anymore, so he had to accept it.

Then Li Rui had lunch at Li Jiangping's place, chatted with him for a while, and then Li Rui was about to drive back, but before he left the city, Cai Mengdie called.

Li Rui answered the phone and said with a smile, "What's wrong with Mengdie?"

Cai Mengdie has been missing him very much since she had Li Rui last time, and said with a smile: "I miss you, I called you and asked you what you were doing."

Li Rui laughed and said, "I have been doing errands in the Fuquan community for the past two days, and I have just finished working today, and I am planning to go back to the tribe."

When Cai Mengdie heard that Li Rui was in the Fuquan community, she suddenly felt a little happy in her heart, and said with a smile: "Why don't you look for me in the Fuquan community."

Li Rui smiled: "It's been a busy two days, but I'm idle now, otherwise let's come out and drink something now."

Cai Mengdie smiled: "Okay, then let's meet in the café, see you or leave."

"Okay, see you or leave."

After hanging up the phone, Li Rui didn't plan to go back to the tribe, turned the car and went straight to the coffee shop.

Ten minutes later, Li Rui arrived at that place, sat there and ordered a cup of coffee first, and after more than ten minutes, Cai Mengdie, who was carefully dressed at home, walked in.

Cai Meng looked at Li Ruidie and smiled, "You're really fast."

"Yes,

Li Rui nodded and smiled, "I happened to be on the road and came over directly, so I must be fast."

Immediately, Li Rui glanced at the other party and smiled: "I didn't see it, I haven't seen you for a few days, it seems to have become more beautiful."

When Cai Mengdie heard Li Rui praise her, she immediately blushed and said happily, "Is it really fake?"

"It's definitely true." Li Rui said with a smile.

After the two exchanged pleasantries for a while, Li Rui smiled and asked, "What's wrong with your father's condition?"

When Cai Mengdie mentioned her father's illness, she was suddenly a little worried, and Liu Mei frowned slightly and shook her head and said, "I used your dodder seeds before, and my condition has indeed improved, but it seems that my heart is a little bad these days." Immediately, Cai Mengdie sighed and said, "This person is getting older, and he is getting sicker."

Li Rui nodded, looked up at the other party and smiled, "Otherwise, I'll go to your house for treatment later."

When Cai Mengdie heard this, she immediately grabbed Li Rui's hand and said excitedly, "Xiaolin, are you really willing to help my father heal?"

Not to mention curing diseases before, Li Rui didn't plan to sell dodder seeds, so she was very happy when Li Rui said that she was curing just now.

Li Rui glanced at him speechlessly and said, "If you weren't so upright and looked like you were high before, I would have cured for your father a long time ago."

Cai Mengdie looked up at Li Rui and smiled, "Then I'm not holding it now, you see how good my attitude is now."

"That's right." Li Rui nodded and smiled, "It's because I see that you are not holding it now, so I am willing to treat,"

Immediately, after the two drank coffee and chatted for a while, Li Rui followed Cai Mengdie to her home.

Her home is in a high-end community, and after parking the car and getting out of the car, Cai Mengdie smiled and said, "Xiaolin, don't be polite when you come in, just treat it as if you were your own home."

Li Rui waved his hand and smiled when he heard this: "I definitely can't be my own home, I definitely can't afford such a good community."

Cai Mengdie glanced at him and sneered: "You are really good at pretending to be garlic, but I heard Biyan say that you have made a lot of money now, and besides, you can afford to drive a Santana, you told me that you can't afford it?"

"Don't say I can't afford it now, your house here is too expensive." Li Rui smiled, "Okay, let's not talk about this, hurry up and go to the room to see your father."

Cai Mengdie smiled, "Then don't take a break."

Li Rui shook his head and smiled, "Don't rest, after your father's illness is cured, you can just rest with me."

Cai Mengdie nodded and smiled, "You cured my father's illness, and I will accompany you at night."

Immediately, the two of them went upstairs, and after Li Rui arrived at the room, he watched Cai Mengdie's father, Cai Ding'e, sitting on the balcony basking in the sun.

At this time, Cai Mengdie walked up to her father and said with a smile, "Dad, I brought you a miracle doctor today."

Cai Ding'e subconsciously glanced at Li Rui when he heard this, and saw that it was a hairy boy in his twenties, thinking that he dared to call himself a miracle doctor at such a young age, and he was really too unbelievable.

But he definitely couldn't show it, so Cai Ding'e stood up and shook hands with Li Rui, and then smiled: "Young man, what disease will you cure."

Li Rui knew that this old man must be doubting his medical skills, and he was not modest, so he smiled and said, "As long as it is a disease that I have seen, I can basically cure it."

Cai Ding'e frowned, thinking that this guy really dared to brag, so he smiled and said, "May I ask the young man, who is your master?"

Li Rui smiled, "It's inconvenient for my master to reveal."

Then Li Rui looked at the old man and said with a smile, "Have you felt some pain in your heart in the past two days, and then your chest is tight and short of breath or something?"

Cai Ding'e's face changed when he heard this, and he smiled: "Little brother, you are so powerful, you know my illness before you have a pulse."

Li Rui waved his hand and smiled: "Traditional Chinese medicine pays attention to seeing, hearing and asking, although I can know the condition by reaching hope, but the medical skills are still a little lacking."

"I hope that you are already the pinnacle of Chinese medicine, and you are already very powerful." Cai Ding'e smiled, "Then can you cure my illness?"

At this time, Cai Mengdie, who was standing aside, smiled first:

"Dad, you may not know that the dodder was Li Rui's last time, and his medical skills will definitely cure your illness."

Cai Ding'e was stunned for a moment when he heard this, and immediately smiled: "Young man, it turns out that the dodder is what you provided, thank you so much."

Li Rui waved his hand and said, "Don't be so polite, my thing is supposed to be life-saving." Immediately, Li Rui continued, "Now I'll use qigong to cure your illness for you."

At this time, Cai Ding'e must have listened to Li Rui, and soon lay on the bed.

Li Rui put his hand on his clothes, and the true qi was injected into the other party's body......

Five minutes later, Li Rui withdrew his hand to wipe his sweat and smiled, "How do you feel now?"

Cai Ding'e sat up, his tired expression before was much better than before, he nodded and smiled: "I feel better, the chest tightness before is gone, you are really amazing."

Li Rui waved his hand and advised, "After a few more days of rest, it will be completely fine, and I will try to be less angry in the future."

Immediately, he opened the door and walked out, Cai Mengdie looked at Li Rui sweating profusely and suddenly felt a little distressed, and said with concern, "Xiaolin, how are you? Sit down and take a break."

Li Rui nodded and smiled, "I'm very tired, you have to serve me well tonight."

Cai Mengdie's face suddenly turned red, glanced at Li Rui, and said with a smile, "Okay, I'll accompany you at night."

Immediately, she helped Li Rui to the sofa and sat down, and then she walked in and watched her father Cai Ding'e walk out with vigorous steps, this mental state was completely different from before, and suddenly Cai Mengdie smiled: "Dad, you feel better now."

"yes, I feel completely better now, I feel like I can run now, and it looks like I can run again in the future." Cai Ding'e nodded and smiled, and then he glanced at his daughter, and Cai Mengdie went to the room with understanding.

A minute later, he walked out with a bank card in his hand, Cai Ding'e took the card and walked to Li Rui and said with a smile: "Little brother, my old man is really thanks to you for living today, this card has three million for you to accept, don't be too little."

Li Rui shook his head and smiled: "I definitely can't ask for this money, and besides, I will treat you for free."

He had already received one million medicinal materials before, and Cai Mengdie had already married him, Li Rui definitely couldn't accept it.

Cai Ding'e is also stubborn, he has to give it to Li Rui, at this time Cai Mengdie looked at Li Rui and smiled: "Lin Kun, you just take it, anyway, if you don't treat it today, we don't know how much it will cost to treat my father."

"Yes, what my daughter said is exactly what I want to say, hurry up and take it." Cai Ding'e nodded and smiled.

Li Rui looked at the father and daughter, then nodded and said, "Then I can't take so much, I'll just take 100,000."

Cai Ding'e nodded in agreement, and immediately asked Cai Mengdie to transfer 880,000 to Li Rui, which is an auspicious number.