Original: Taste of Little Sister (wechat official ID: XjjDog), welcome to share, please reserve the source.

Strings are a common form in programmer code. We see it all the time. It doesn’t mean anything, but it’s everywhere.

1, hello world

When introducing a new language, textbooks often begin with examples of programs that can print Hello World. It is said that Hello World first appeared in 1972 in the internal technical document “A Tutorial Introduction to the Language B” written by Brian Colingham, A member of Bell LABS.

This is a kind of “tradition”, like a cultural brand, a kind of inheritance. This is also a kind of “interaction”, a cry to the world.

When you have learned a language, there are thousands of words but no way to express them. Raise your arms and shout, but you can only say: Hello world. It’s the same as when you see the ferris wheel and just shout “Oh my God”.

Hello World also has another layer once, referred to as HW, is also the meaning of Chrysanthemum factory Huawei.

4, The quick brown fox jumps over a lazy dog

In the old days, there were no keyboards as advanced as they are now.

Every time a worker wiped an English typewriter, he typed out a sentence to check whether the writing was clear. 4. The sentence “The quick brown fox jumps over a lazy dog” jumps over a lazy dog. This short sentence happens to contain all 26 letters from A to Z.

The explanation is this, but it is not known how special characters are tested.

In fact, the following paragraph in English, also the same effect, but shorter.

The Five Boxing wizards jump quickly.

Yeah, it was my personal password for a while.

Chinese characters, however, cannot be played this way because there are too many square characters. However, there are some interesting parallels in Chinese poetry, such as the poem below, which contains 10 Chinese numerals.

One to 23 li smoke village four or five pavilions six or seven eighty or ninety flowers

3, All work and no play makes Jack a dull boy

As the saying goes, all work and no play makes Jack a dull boy. The second half of the proverb is “All play and no work makes Greg a playboy,” which means “All play and no work makes a disciplined man a playboy.

In the horror film The Shining, this phrase is a nightmare that the hero keeps repeating.

The Shining reveals the fate of those who work overtime, as well as the motivation and meaning behind intense work. Programmers often cite.

It teaches busy programmers to take things too far. Zhang and not relaxation, sages are also fools.

Across the GreatWall we can reach every corner in the world

In September 1987, Professor Zorn attended a science and technology seminar in Beijing. After some debugging, he connected the Computer application Technology Research Institute in Beijing with the Computer center of Karlsruhe University. On September 20, he drafted the E-mail, signed it with Professor Wang Yunfeng in China and sent it. It was successfully uploaded to a computer at the University of Karlsruhe.

The message reads “Across the GreatWall we can reach every corner in the world” and was sent at 20:55 Beijing time on September 20, 1987. This indicates that the Internet era has quietly tapped the door of China.

China’s “Internet”, which has lasted 33 years, has its own destiny.

Xjjdog is a public account that doesn’t allow programmers to get sidetracked. Focus on infrastructure and Linux. Ten years architecture, ten billion daily flow, and you discuss the world of high concurrency, give you a different taste. My personal wechat xjjdog0, welcome to add friends, further communication.