Xue Yimang received a strange file in his mobile phone, and the sender's number was not visible, the file name was "textbook", and the size was 2MB.

Textbook should mean the textbook. Xue Yimeng can barely pass the Level 4 in English, but being able to understand the meaning of words does not mean knowing what the file is.

If this file is really a textbook, it is probably just a courseware for one subject, with a volume of 2MB, except for the txt format (can record about 120w words), other things, doc format, wps format, pdf format, ppt format... cannot record too much.

Xue Yimang's mobile phone is a smart Nokia phone that can open most Office files, but this file cannot be opened, and the file does not even have an extension, which means you don't know what type of file it is.

On computers and mobile phones, it is rare to see an extension for a file. If it is not a system file, it may only be a virus. However, Xue Yimang doesn't think that this file is a virus, because this file gives him a wonderful feeling.

In order to find a way to open this file, Xue Yimang walked out of the dormitory and came to the Science and Technology Building to ask Teacher Xie Wuyin who taught him C language.

Teacher Xie is a famous Mr. Nan Guo from the University of C. He became a university teacher by talking nonsense, but he did not have any energy to study. He is a typical type of scattered food and waited for death. He also teaches the most basic C language in computers. He only reads according to the textbooks during class and runs away after class, for fear that students will chase him and ask questions he doesn't understand. His biggest dream is to get a professor's title, and then marry a beautiful wife and a more beautiful mistress.

——It’s a pity that Xue Yimang didn’t know the essence of Teacher Xie, otherwise he wouldn’t have taken this trip.

When Xue Yimang found Teacher Xie, Teacher Xie was taking a nap. Xue Yimang explained his purpose very politely, and then began to try hard to explain it in detail.

Teacher Xie was confused when he heard this. After Xue Yimang finished speaking, he pretended to be savoring. After a long time, he asked Xue Yimang: "Do you have no owed your phone, right?"

"No." Xue Yimang replied with certainty.

"That's how..."

Teacher Xie Wuyin fell into deep thought again. To be honest, he knew nothing about the deeper things in the operating system, not to mention that the file Xue Yimang said was on his mobile phone again.

"Take your phone and I'll take a look."

He started playing with Xue Yimang's 6120c mobile phone again, and the "textbook" file was right in front of him. Teacher Xie tried to click it twice, without any movement.

Teacher Xie leaned his fist on his forehead and paced back and forth in the office, sweating all over his head. He seemed to be trying hard to think about the questions raised by Xue Yimang, but the real situation was that he was thinking about a way to excuse him.

"So that's it, I understand!"

Teacher Xie looked like he suddenly realized, and he finally thought of what he used to treat Xue Yimang to perfunctory-

"Sir Xue Yimang, I tell you that the file types on the computer and mobile phone correspond to the program software used to open these files. If a file does not know the file type, of course we cannot know how to open and run it... However, this situation is not absolute. When we learn that computers cannot stay superficially on the surface, we should think in reverse and flexibly. Every file and every program come from a code full of wisdom. Programs are lifelike like humans. Therefore, opening a file does not necessarily require a program that supports this file. We can also let the file open itself, just like a human. When he is unwilling to walk out of the house, we can wait patiently outside the house and wait for him to walk out by himself."

"Get out by yourself?" Xue Yimang was puzzled, "Teacher Xie, can you make it clearer?"

Teacher Xie waved his hand and said, "There is only so much I can say. You can understand the rest yourself. Cultivating students' thinking ability is also one of the teacher's responsibilities."

Teacher Xie Wuyin returned the phone to Xue Yimang, and legitimately invited the annoying student out of his office, fell on the sofa and continued to sleep. Xue Yimang returned to the dormitory with a confused look on his face, recalling what Teacher Xie said in his heart.

"Let the file open itself..."

Lying on the bed, looking at the mobile phone in my hand and the strange files in my phone, Xue Yimang thought with great difficulty.

Suddenly, he thought of a way!

Xue Yimang quickly turned over and sat up, pressed the button of his phone with a thumbs up, and added a "." to the file named "textbook" and then a "exe" after it, so that the file name becomes "textbook.exe".

With a try, Xue Yimang clicked on the file again. At this moment, a miracle happened!

The file was opened, and some fonts were constantly refreshed on the display screen of the phone—

Opening the file...

Binding...

Initializing...

It's...

After a series of steps, a light yellow picture appeared on Xue Yimang's mobile phone. In the center of the picture, there were several bold and imitated Song characters written in the Song Dynasty.

"Full-time textbook for general high school"

Xue Yimang opened his mouth wide and couldn't say a word!

Of course there is nothing to be surprised about the electronic version of ordinary high school textbooks. Xue Yimang was surprised by the date written directly below the picture.

"After reviewed and approved by the National Primary and Secondary School Textbook Review Committee in 2622"

Oh my God, is this a textbook from 600 years later...

——Impossible?

Although Xue Yimang tried his best to deny these childish plots that only appear in YY novels in his mind, as time went by, he gradually gave up this idea.

Clicking on the light yellow screen, you will enter the main directory of the e-textbook. At this time, Xue Yimang discovered that the content of the textbook is far beyond his imagination. It only occupies 2MB of electronic files to store space, and actually covers all high school subjects.

Mathematics, physics, chemistry, biology, Chinese, history, politics, music... and several subjects that were not even available in the 21st century. The textbooks for each subject are not only text, but also pictures, and even sounds!

Compressing so much content into only 2MB of space is absolutely impossible with current computer technology. What is this the textbook for the future?

Putting down the cell phone in his hand, Xue Yimang fell head-on into the pillow - getting something that does not belong to this era. Is it a blessing or a disaster for himself?

Maybe it won't have much impact. Although it is 600 years ahead, it's just a high school textbook after all. What can he do if he exiled a high school student with excellent grades in the 21st century to the 15th century? Don't think that everyone can be a prince when they return to the Ming Dynasty. Reality is not a novel. It's already great that he can live safely in the past...

Thinking of this, Xue Yimang closed his eyes with peace of mind and fell asleep deeply.

However, he did not know that the hurricane caused by the butterflies flapping their wings 600 years later today was much larger than the hurricane caused by the butterflies flapping their wings 600 years ago!;
Chapter completed!