Scholar’S Advanced Technological System
Chapter 50

"You're writing a Python crawling script?" w.a.n.g Xiaodong asked when he heard Lu Zhou's statement.

Lu Zhou explained, "Technically it is a ticket purchase application. I would like to buy a server to try it out. Do you have any advice …"

"Stop making love," Wang Xiaodong said as he interrupted Lu Zhou rudely. He said, "Do you know how to set up a server? Do you have a place to put it? If you try to put it in your dorm, the whole floor circuit breaker will trip."

Uh?

Is he exaggerating?

But listening to his tone, it seemed like he had tried it before …

Wang Xiaodong continued to talk over the phone in a cold tone, "If you want to make money, you can do freelance work. No need to make an application. If you have money to spend, you can try renting a Cloud Server, which is obviously easier than having your own server. You do not have to worry about electricity and heat dissipation. It charges you with the amount of traffic and there are monthly and hourly prices. "

"Oh really?" answer Lu Zhou.

"You're not an expert. Why are you trying to do this?" sighed Wang Xiaodong. He then continued patiently, "Also, have you ever thought of registering a domain name for your application?"

"Can't I just use the server's IP address?" ask Lu Zhou.

"No," Wang Xiaodong replied immediately. He said, "For example, if you develop an app on iOS and you assign a fixed server IP address in your code, once the cloud service operator changes the server device, it's the same, Not only do you have to rewrite the code and upload it again, but you might get rid of half of your users directly. Not everyone turns on automatic updates. "

F* ck?

Lu Zhou had never heard of this before.

Wang Xiaodong paused for a moment before he continued to say, "The most important part too is that your crawler data set from third party websites may be blocked by the website administrator and they may block your IP address. This can be avoided with cloud servers. After all, Ali has countless IP addresses and you don't have to bother with virtual IP addresses. "

The genius student became strangely talkative when talking about his skills. He spoke like an endless stream. This made Lu Zhou think about Huang Guangming. If he starts talking about the mechanics of playing Leblanc, he can last for half an hour.

Of course, the content that the genius spoke of was quite valuable.

Lu Zhou listened carefully. He even picked up a notebook and started writing notes.

"… If you are crawling from 12306, the crawler itself will not use much resources from the server, especially since Ali is doing promotions for small company users, there is a good discount. I think you should start with a million send and receive server capacity. This is about 300 yuan a month. Wait until your number of user visits goes up, then you can upgrade the server. This is much more convenient than dumping your own server. "

F* ck me, this guy is really a genius.

Lu Zhou felt he had saved tens of thousands of yuan just from this phone call.

Of course, he still had to buy the server himself, but it had to be delayed until he received his money.

"Thank you, I will buy you some food someday," Lu Zhou said.

"We'll talk about it later."

As the topic changed from computer science to food, Wang Xiaodong's enthusiasm instantly returned to zero and his tone became emotionless again.

However, Lu Zhou had no other questions nor did he want to speak for long. He thanked me again before hanging up the phone.

Lu Zhou held the mouse and went to Alibaba's cloud computing page. He started looking for service.

Indeed, just like what Wang Xiaodong had said, Alibaba Cloud did a promotion. The server got a big discount.

"One million pps 1 server costs only 300 a month, including 100GB of cloud SSD, 200 yuan to be upgraded to an additional 1TB .. 0. 3 yuan per GB. CPU, intranet bandwidth, sending and receiving capabilities can all be improved. 50% off for three years…"

This price can be said to be quite attractive. If there are no unforeseen circumstances, it costs less than 1000 yuan per month to operate the application. If the user number exceeds the expected amount, he only needs to improve the service.

"OK, this is solved. Next is to promote the app. I have to promote it before school starts," Lu Zhou thought.

Advertise on Tieba to new student group …

Lu Zhou filled out the server rental application and went to the bathroom to take a shower. He dried his hair and went back to his dorm.

He was about to go up the stairs and sleep when he suddenly smelled a pungent smell.

He turned around and saw that Liu Rui was vomiting while lying on his side.

F* ck!

This kid just went to sleep! How did he vomit?

Lu Zhou had no time to hesitate. He jumped up from the stairs and took Liu Rui to the toilet.

"Go ... I can still drink," Liu Rui said as he stumbled. He reached out and pushed Lu Zhou.

Lu Zhou panicked and quickly said, "F* ck, Brother Rui, you can't vomit anymore! I warned you, I just took a shower!"

"the barf…"

Lu Zhou: "…"

Lu Zhou took a bath for no reason and he was also unable to sleep. The hostel smells very sour.

Liu Rui swore that this was the last time he would drink.

Liu Rui kept vomiting. When he finally woke up, he looked at the floor and Lu Zhou's dirty clothes. Embarrassed, he quickly apologized.

They shut off the AC and cleared debris together before opening the door for ventilation.

After all this, Lu Zhou took another bath. When he returned, he picked up the mat and went to the class leader's dorm room.

It is impossible to sleep without AC.

…

The next day, Lu Zhou woke up early.

When he returned to his own dorm, Liu Rui still snored on his bed.

Lu Zhou did not bother him. Instead, he went to his desk and turned on his computer.

Cloud server applications are quickly ready. He uploaded the script and the crawler started working. It downloaded tickets, stations and other information from 12306 before summarizing and sorting the data. Anyone can create an account and buy tickets, receive sales reminders, automatic ticket refresh, etc.

It has all the necessary features and is also easy to use. The light blue background is boring but at least not distracting.

Lu Zhou downloaded the app on his phone and selected a station to test. He saw that the order was ok, so he canceled the order at the payment stage.

Then he spends all day to put the app in the android store. Stores like Baidu phones, 360 assistants, and other large Android software download platforms.

He looked at the number of downloads through the developer panel and saw that the number of downloads remained at 0. He sighed.

"I don't think creating a successful app is easy.Not having a user is a big deal."

"I applied to several free advertising platforms. Don't know when I'll be accepted."

Lu Zhou shook his head and turned off his laptop. He then stuffed his textbook into his bag.

"Who cares. I'll be working on this for half a year or so. At least, I can use it as a learning experience." Packets per second are a measure of throughput for network devices such as bridges, routers, and switches