Mr. Liu, the dormitory manager, was looking at the circuit board intently, and his slightly calloused fingers were slowly crossing the lines on the circuit board. The circuit board showed a turquoise background, large and small black chips with silver solder joints neatly arranged on the circuit board, some of the black chips were printed with white words, some were dented by burning, and the largest chip in the middle was impressively written "CISCO SYSTEMS".

Yang Feng was fascinated, and he was also imitating Mr. Liu's movements and gesturing in the air little by little, as if he was also using his fingers to explore the printed lines on the circuit board. Suddenly, Mr. Liu's movements began to speed up, looked at the scorched place, and then touched the line extending outward along the scorched position.

"This is it", Mr. Liu said, tried it with a universal meter, made a final confirmation, and then picked up the heat gun to blow the solder joints under the burned capacitor, and carefully took off the burned capacitor with tweezers, and carefully looked at it. Next to Mr. Liu was the toolbox, and after rummaging through the toolbox for a while, bursts of dust poured out of the toolbox under the illumination of fluorescent lamps, and with this burst of dust, the air smelled of rust.

"Found it!", Mr. Liu took out a capacitor of a different color from the toolbox just now, sanded the solder joints on the pins and circuit board with sandpaper, and coated it with a solution mixed with rosin and alcohol. He skillfully picked up the soldering iron, put on the tin, and began to solder the capacitor he had just found. With a faint "zila" sound, puffs of blue smoke drifted up from the solder joints, exuding a pungent smell.

After the welding was completed and cooled for a while, Mr. Liu picked up the universal meter and tried it again: "This time it should be okay, you can try it or not."

"Teacher, you are really good, I'll go get a laptop", Yang Feng couldn't help but praise from the bottom of his heart, returned to the dormitory, picked up the laptop and network cable, and ran to Teacher Liu's dormitory. Seeing Yang Feng in a hurry, with a smile on his face, the dormitory classmates looked at each other and decided to follow Yang Feng to Mr. Liu's place to see what was going on.

Yang Feng quickly connected the network cable, power cable, and computer, opened the brain and entered the instructions, the dormitory was silent, and the dormitory students all leaned their heads and looked inside at the door.

After a while, Teacher Liu asked, "How is it, okay?"

Yang Feng looked at Teacher Liu with a serious face and shook his head. Everyone present felt sorry: this matter alarmed Mr. Liu, and it was not good to get it right. It's over! The third child has to lose.

Teacher Liu frowned and propped up his chin and said, "No, it's obviously burned out in this one place."

Immediately afterwards, Yang Feng laughed and said with a smile: "There is no problem at all!"

Everyone's hanging heart was finally let go. Because the students in the dormitory witnessed this miraculous moment of Teacher Liu, they all walked in and began to praise Teacher Liu, and the hardest working person was the third child.

Everyone spent this day in a happy atmosphere in the dormitory night, and the problem of the machine is easy to solve, the switch is not broken at all, but the router did not turn on the DHCP service, Yang Feng simply flashed the firmware again, restored the factory settings, and fixed the problem.

In the middle of the night, Yang Feng was reading in the bathroom, but after all these twists and turns, he didn't have any intention of reading, and was thinking about how to build a large LAN such as an Internet café. Yang Feng held the book, and the bookmark was the bookmark given to him by Wang Ziling, just because he had no intention of continuing to read the question, so he put the exquisite bookmark in his hand and played with it. He looked at the function on the bookmark repeatedly, but he didn't have a calculation paper at hand, and he still didn't know what the function meant. Maybe it's a problem? Or maybe it's a sentence?

His thoughts quickly entered the memory, he thought of Wang Ziling's cuteness, he would smile, and when he thought of Wang Ziling's clinginess, he smiled and shook his head. He remembered the first time they met: in September 2006, the city of Hyger entered autumn earlier than any other city, and it was the first time they had stepped onto the high school campus and the first time they had met. At that time, they were both on the No. 5 bus, and Yang Feng was sitting in his seat reading a computer magazine, and a young girl had just come up from the front door of the bus. As if something was destined in the dark, Yang Feng happened to raise his eyes to look at the road ahead, and this girl was just in front of Yang Feng.

Yang Feng, who usually talks little with girls, saw the graceful, pure and lovely young girl in front of him at that time, and couldn't help but have a heart beating faster, her cheeks were slightly red, and then she pretended to look out the window inadvertently.

Wang Ziling carried a schoolbag, a white shirt on the top, a red sleeveless sweater, skinny jeans on the bottom, a trendy MP3 hanging around his neck, and a clean white wired headphone straight through his ears. His eyes were clear and bright, as if he was very curious about the street scene in front of him, and he seemed to be looking forward to the various opportunities of the new semester. The long hair just crossed the shoulders, the bangs just covered the delicate meteor eyebrows, and the pink lips were faintly fragrant, and they breathed like an orchid with the gentle breathing.

At that time, Yang Feng never expected that the girl who made him so excited would get off the bus at the same stop as him and walk along the same road to the campus. Because he had never been to this place, Yang Feng was a little unfamiliar with the road, thinking that this girl must have also come to report to the school, so he followed all the way behind. Yang Feng has always been a little introverted, and he wants to talk to Wang Ziling, but he doesn't know how to speak. At this time, Wang Ziling saw Yang Feng carrying his schoolbag all the way and walking with his front and back feet, and looked at it, it seemed that this boy was also a student, so he took the initiative to turn around and asked Yang Feng: "Hey, this classmate, we have been all the way for so long, you are also here to report, right?"

"Hmm," Yang Feng replied in a low voice, looking a little shy and shy. So Wang Ziling pointed to the road ahead and said: "Turn right at the next intersection and walk forward a little bit", and then stretched out his palm, the slender hand was white and red, and it was placed in the air, Yang Feng was stunned for a moment, not knowing what this girl wanted to do.

Wang Ziling said: "It's a pleasure to meet you, come, give me a high-five, my name is Wang Ziling, we will be good friends in the future!"

Yang Feng couldn't help but laugh when he saw the girl's graceful figure, charming smile, and long hair, and happily high-fived her and became friends.

Coincidentally, Wang Ziling and Yang Feng were not only in the same school, the same class, and even the same desk, and even the rankings of each exam were one after the other, and Yang Feng was always just one place higher than Wang Ziling.