Yu Jianguo stayed in the laboratory, and at first he was simply idle. In his impression, there is always a need for one or two security guards at the entrance of a building to receive visitors and arrange parking or something. But everything here is already in order, and it will be redundant for him to intervene again, and he will not operate those fully automatic equipment, as well as electronic screens and cameras that can "talk" in the cold.

He went to get clean. He secretly swept the sky for a few days. Why secretly? Because he was embarrassed to say that he had swept the floor, it was so clean, cleaner than anywhere he had ever seen, the only thing that could be the difference was probably the operating room in the hospital, oh, and the morgue.

Later, he learned that there is a very advanced purification system in the building, which almost does not leave dust, and there is also a sweeping robot, which has been swept clean long before he takes the broom to clean, and even the garbage is automatically cleaned out, and no one needs to do it at all.

He felt that he was quite embarrassed, he lived a handful of years, and he could be regarded as having seen the world, but he was even confused by the miscellaneous work.

He didn't know if the professors upstairs knew about him, but the talking cameras must have seen it, and would these guys report back to them? Lao Yu often thought like this, and secretly said to them: "I don't know how to do things, you know a lot, and you have time to teach me." ”

The camera stared at him, motionless and silent. Lao Yu said: "Look, you see, I sincerely ask for advice, why don't you say anything again?" ”

No one taught, and I always swept it persistently. He said, I'm a big living person, I can't sweep the floor and I can't sweep you a machine crawler?

He bought the broom himself from a nearby supermarket, and he didn't find it in the lab. Later, he secretly threw away the broom again, because after sweeping it a few times, the broom was not as clean as the floor in the building.

He doesn't need a broom, he wipes with a rag, not only the floor, but he also wipes the walls, the sculptures and ornaments in the building, and the robot never sweeps these things. Sometimes, he also wipes the eyes of those talking cameras, and when he wipes them, he smiles and says, "You wear a lens so thick, how many degrees of myopia do you have?" ”

A few days later, the young and beautiful assistant professor girl came to Lao Yu and said that she would train him. Lao Yu began to receive training, what kind of equipment is this, what is this for, and how to maintain this. Lao Yu listened to it ignorantly, this kind of training lasted intermittently for two or three months, and the people who trained him were all upstairs, they all liked Lao Yu, and Lao Yu liked them a lot.

For example, the young man named Bian Ziyuan is very good at talking, and he even invited Lao Yu to eat hot pot in private. Lao Yu likes the young man's temper very much, he is serious, stubborn, and energetic, but he is not the kind of person who is bent on money. Lao Yu knows that it is called an ideal - something that has been lost in him for a long time, something that can make people's blood boil, something that is worth cherishing but is easily abandoned by reality.

Lao Yu is very envious of young people, young is good, young people are worthy of ideals. But he admired Professor Mei even more - his hair was whiter than him, but he was more passionate and combative than young people when he started learning.

In such an environment, Lao Yu also became more energetic, as if he had returned to his youth.

He couldn't help but think of Zhao Pengcheng again. What a good boy! It's a pity......

After passing the training, Lao Yu signed a contract, paid social security, and became a regular employee of Mei's laboratory.

He now also knows how to authenticate himself in front of electronic screens and cameras, how to press his fingerprint, how to match his iris, and how to verify his genes. He was also allowed to go upstairs and basement freely to do what he had to do. Of course, there were some places where he had to apply to go, and the top floor was impossible to go to anyway, where the curfew was very strict, and only a few people could enter.

Before leaving, Mei Ziqing handed over a key to Lao Yu and said, "Uncle Yu, this is an emergency key, you keep it." ”

Yu Jianguo asked: "Which door does this key open?" ”

Mei Ziqing said: "It's for emergency use, there are two keys in total, and they need to be used together." If there is an emergency, you contact us and you need to use the keys, I will tell you. ”

Yu Jianguo asked again: "Where is the other one?" ”

Mei Ziqing said: "The other one is in the hands of the professor, and I don't know who I gave it to." You can't tell anyone about the keys I gave you. This is the rule of the lab. ”

"Oh, the rules, I know the rules." Yu Jianguo nodded and accepted the heavy key, feeling that the burden on his shoulders was a little heavier.

He walked around the empty laboratory alone, going east and west, looking here and there, these were all things he was familiar with on weekdays, and he didn't see much of the places he couldn't get in and couldn't see.

He felt that he was left alone now, and if something happened, it would be his responsibility, so he couldn't be careless. Don't let the thief in! Not to mention thieves, not even ants can climb in.

After a long turn, he wondered again, which door did the young assistant professor give him the key to open? Since it is an emergency key, there is always a place to open, and since it is given to him, it is always a place where he can go. But he didn't see where the keyhole could be inserted, the doors here were all automatic, there were identification devices in front of the door, and the door opened with a single click.

When he was touching, Bian Ziyuan suddenly returned.

Bian Ziyuan carried a large bag in his hand, passed the security check of the gate, and entered the hall. Yu Jianguo saw it and hurriedly greeted him:

"Yo, Teacher Xiaobian, didn't you go home for the New Year, why did you come back again?"

Bian Ziyuan said: "I found an important data error at home, and I want to come back and fix it." ”

"I still specialize in work during the holidays, I am really dedicated! No wonder he is so young and so promising! Yu Jianguo was in awe, and reached out to help Bian Ziyuan carry the bag, "I used to have a nephew, and he worked as hard as you when he was young. ”

"Alas, Uncle Yu, you put it down, I'll pick it up myself, this bag is not heavy." Bian Ziyuan said while changing his shoes, "Your nephew is also engaged in computers?" ”

"Oh, he's a doctor." Yu Jianguo carried a handful of bags and found that it was not heavy, so he let it go.

Bian Ziyuan changed his shoes, stood in front of the dust collector to remove the dust on his body, put the bag into the dust bag, and then carried it into the elevator:

"Uncle Yu, you're busy, I'll go up first!"

Yu Jianguo responded with a "hey" and saw the elevator door closed. He paced slowly to the monitoring room, and in the surveillance screen of one of the screens, he happened to see Bian Ziyuan coming out of the elevator, and immediately appeared in the corridor on the other screen, and then stood in front of a door for a while, and the door opened.

Bian Ziyuan walked in, and the door was closed.

There is no monitoring inside the door, and even if there is, Yu Jianguo knows that he can't see it.

He walked out of the monitoring room and walked around one by one. As soon as I walked around for half a circle, I heard the elevator clanging, and Bian Ziyuan came out again, and saw Yu Jianguo asking:

"Uncle Yu, do you have an emergency key?"