This person Yan Jiecheng really knows, according to Yan Jiecheng's understanding, there is only one word, cow.

In terms of past experience, there are too many big guys in these years, not to mention.

It's just that he worked as the boss of Tiezong for 20 years, which is a bit scary.

This is a proper golden thigh.

This golden thigh is currently working as a parent official in the capital.

It's not too awesome.

Jin Thigh and Luo Gong, the two of them chatted while walking, and after a while, they arrived in the living room.

At this time, there were women in their fifties in the hall, and a girl in their twenties.

The girl wore two braids and looked very simple.

Those two braids are thick and black, and they are fun to look at.

When this girl saw Yan Jiecheng for the first time, she blushed and was a little overwhelmed.

Yan Jiecheng glanced at it in surprise, a girl from such a big cadre family is so simple? It's a bit like Qin Jingru entering the city.

Yan Jiecheng felt that this girl was not normal, not like she was born in this kind of family.

So he also greeted the aunt, nodded to the girl, and didn't pay too much attention.

This golden thigh gave an introduction to everyone, but introduced this woman in her fifties as his wife, but did not mention this girl.

Yan Xie Cheng knew this, and then pretended to know the name of Jin Thigh.

Just when Yan Xie was puzzled, Aunt Chang, the wife of Jin's thigh, said, "Cuihua, prepare tea for your Grandpa Luo." ”

Yan Jiecheng nodded silently at this time.

After everyone sat down, Jin often asked his wife, "Why don't you see Kexin?" Hurry up and let her come and take Xiao Yan to play together, they young people have a topic together. ”

Mrs. Chang said with an embarrassed face: "Old Luo, Xiao Yan, you don't know that our daughter, who spends her mind on that broken machine all day long, and studies it again today, I can't persuade her." ”

Luo Lao knew this Chang Kexin, so he smiled and said: "That girl is a top student in the Radio Department of Huaqing University, isn't it normal to like to study those things." ”

Seeing this, Chang Tu said to Yan Jiecheng: "Xiao Yan, this girl in my family is the same as you, she was also born in 42, and now she is a senior, so you will contact first." ”

After speaking, he asked Mrs. Chang to take Yan Jiecheng to the second floor.

stopped at the door of a room, knocked on the door, and said, "Kexin, Xiao Yan that my mother told you yesterday is here, I brought it to you, and the two of you will sit in the room and talk." ”

After a while, the door opened.

Yan Jiecheng's eyes greeted a short-haired girl, fair-skinned, wearing a pair of glasses, and holding a small tweezer in her hand.

The first impression is that there is tolerance. You don't need to look at it to know that it's the type he likes Yan Jiecheng.

She also looked at Yan Jiecheng, and then beckoned someone in.

When Mrs. Chang saw this, she didn't bother.

There were only two people left in the house, and Yan Jiecheng was a little embarrassed, who made this girl twenty years old, and she still had a fourteen or fifteen face.

Chang Kexin was also generous, and poured a glass of water for Yan Jiecheng.

He stared at Yan Jiecheng again, and nodded after reading it. said: "It looks quite thoughtful." ”

After speaking, he ignored Yan Jiecheng, and studied the pile of wires on the table by himself.

As the saying goes, a serious girl is so good-looking, and this girl likes to put something on the table to say.

Yan Jiecheng drank two sips of water, feeling that the distance was a bit far and he couldn't communicate well, so he looked next to this girl.

After a while, Chang Kexin dismantled the circuit again, holding the multimeter next to the test material.

I assembled it again, but it still didn't achieve the experimental effect, so I thought hard there.

Seeing this, the corners of Yan Jiecheng's mouth curled, and he said softly: "There is a problem with your circuit design itself.

Your circuit is a kind of discrete signal transmission and processing, with binary as the principle, to achieve digital signal logic operation and operation of the circuit.

It should be composed of the most basic AND gates, or gates and non-gates, and its output value depends only on the current value of its input variable, independent of the past value of the input variable.

You end up here wanting yes or no, and you end up introducing OR gates.

So the results are definitely inconclusive. ”

Chang Kexin listened, looked at Yan Jiecheng with a look of surprise, and said, "Yes, why didn't I think of it."

Do you still understand this? Didn't my dad say you built roads? ”

Yan Jiecheng listened, and his heart was full of sorrow.

This old man is not righteous.

Although in the final analysis, we are indeed a road builder. But he's also a teacher, and he's the youngest deputy in the ministry.

Yan Jiefang said indifferently: "I don't understand, I know a little bit of basic logic circuits." ”

Chang Kexin listened to it and became interested.

You must know that this logic circuit is also cutting-edge technology, and this road builder is actually said to be the foundation.

This person should not be simple, think about it, his parents can't really introduce themselves to a road builder.

Chang Kexin pestered Yan Jiecheng to ask questions about logic circuits.

Yan Jiecheng really understands a little bit of this thing.

I still saw it when I was bragging to people on the Internet in my previous life.

Chang Kexin couldn't help it, so he had to explain the principle.

It is said what is combinatorial logic and what is sequential logic.

Just this little thing stunned the little girl for a moment.

What Yan Jiecheng didn't know was that the semiconductor industry was rapidly upgrading, although what he said was a very basic bit of electrical knowledge in later generations.

But it is still a very advanced thing in this era. It is of great significance to the development of medium and large integrated circuits.

Chang Kexin listened to Yan Jiecheng's explanation, and then stretched out his hand and said, "Officially acquaintance, my name is Chang Kexin, and I am a senior student in the Radio Department of Huaqing University. ”

Yan Jiecheng smiled and held Chang Kexin's hand and said, "Yan Jiecheng, the chief of the iron is the one who repairs the road." ”

"Hehe, you're dead, and you're lying to me about building roads." Chang Kexin said.

Yan Jiecheng said: "In the railway general construction railway, it is not to build roads. ”

Chang Kexin didn't dwell on this, and asked curiously, "Then how do you know so much?" ”

Yan Jiefang didn't answer her words, he casually took a book from the bookshelf in Chang Kexin's room and flipped through it casually.

handed the book to Chang Kexin and said, "Look at it, don't blink." ”

After speaking, Yan Jiecheng began to recite.

Chang Kexin was surprised to see it, and after Yan Jiecheng recited it for more than ten minutes, he said: "The ancients were honest and did not deceive me, and there are really people in this world who will never forget. ”

So the two of them talked about history, art, architecture, and industry in the house.

After a while, Chang Kexin saw that Yan Jiecheng was already full of admiration.

In the living room downstairs, Chang Tu said to Luo Gong with a smile: "This kid is not simple, my girl has always been above the top." She has always looked down on those young talents in Huaqing University, but she didn't expect Xiao Yan to chat with her for so long. ”

Luo Gong smiled: "They are of the same age and are both talented, so they are naturally attracted to each other." ”

Chang Tu heard this and said with a smile: "Yes." ”