things to with python

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Spring's things management

I. Definition and characteristics of thingsA thing represents a collection of operations. That is, a series of operations for a minimum unit indivisible (atomic), this sequence of operations either all succeed or fail all (consistency), each operation set does not interfere with each other (isolation), the operation of the collection of all operations completed after the data must be stored in a persistent way (persistence).II. Transaction management of SpringSpring's transaction management is d

Three kinds of things never put in the database

Tags: SQL file system binary picture backup three kinds of things never put in the database I have said in many speeches that the best way to improve your system is to avoid doing "stupid" things first. I'm not saying that you or your development "stupid", but some decisions are easy to ignore the implications of their implication, do not know how to do this to system

Crazy Java Learning Note----------5 things you don't know about the serialization of Java objects

conversion utility (a very large task) for each persisted user setting, it will appear to be used Hashtable as the storage format for your application in the future.The team feels deadlocked, but only because they don't know one important fact about Java serialization: Java serialization allows the type to change over time. When I showed them how to automate the serialization substitution, they finally finished the HashMap transition to the plan.This article is the first article in this series,

30 things that are not worth doing in life

Maria Robinson said, "No one can go back and start again, but everyone can create a new future from now on. "Well, before you begin such a change, you have to give up on things that hold you back and are not worth doing. The 30 ideas mentioned below are a good example:1. Do not waste time on the wrong person.Life is short, so you should not share your precious years with those who compress your happiness. If others really need you, they will free up a

If you are not careful, your website will be unstable. Sixteen things you should learn

1. Learn to be out of love. If you roll it, you can leave it. 2. Learn to be alone. No one will protect you as a treasure. The world is always lonely.3. Learn to be strong. In fact, a person can live beautifully, smile and show himself, and cry and hear for himself.4. Learn to endure. Shut up and shut up. Silence. 5. Learn to cherish. There are not many friends who know your heart. If you leave, you will have to leave yourself alone.6. Learn to turn a blind eye, choose to ignore disgusting

Those years, those things -- a programmer's struggle history -- 117

, you can execute uncertain code to make yourself confused. In the past, when studying the operating system principles, the concept of memory space distribution was uncertain. Even if we were able to develop wince with ease, Duan fuyun was just a bit knowledgeable. But what is the solution? The operating system has already taken a lot of things into consideration, so programmers don't have to consider that much, so they don't even know the existence o

Never say ten silly things to your boss

part of the error that you need to bear, and do not mention the part that has nothing to do with yourself. The boss will take the initiative to find another responsible party. Career silly talk 6: "Can I do it? I am afraid it will not work well. "What you want to express --- I am really interested in this job. Let me give it a try. How can the boss understand it? Without confidence, courage, or embarrassment, the attitude lacks the momentum of doing things

Ten things that annoy programmers

Programmers are a special group. They have a similar character and temper because they have been dealing with computers for a long time. Of course, since it is a person, of course there will be personality, there will also be temper. Next, let's take a look at ten things that can make the program messy. On the one hand, we can look at the common characteristics of programmers, and on the other hand, we can also look at the shortcomings of programmers.

10 things non-technical users don't understand about your software

Address: http://successfulsoftware.net/2010/08/24/10-things-non-technical-users-dont-understand-about-your-software/ If you are writing consumer software you have to understand that you and your average user have a very different level of understanding of computers. when you first start doing support it can be a shock to realize just how vast this gulf is. it doesn't mean that your users are stupid, just that they havene' t spent the thousands of hou

Ten things not taught by the University about programming

I still remember that when I completed my studies, I was confident that I was ready to enter any software company and start to become a top-level developer. Obviously, not long after I started my work, I realized that there are still many things I don't know. While constantly learning from experience, I have been trying to learn the basic knowledge that I have never learned, but it is what I should know as a good developer. The following are ten

Live is doing a lot of meaningful things.

What impressed me more than "don't abandon, don't give up" is that "Live is doing a lot of meaningful things, to do a lot of meaningful things is to live well ". I have been looking for meaningful things to do. When reading a book, you have to read a famous book. Movies are classic, learning English, writing a blog, and doing financial management. I don't know w

There are three things in a person's life.

There are three things in a person's life. First, "Poverty" Poverty cannot be waited, because after a long time, you will get used to poverty, not only cannot break through yourself, but even erase your dreams, and a mediocre life ...... Second, "dream" You can't wait for a dream because you may have different experiences and ideas at different stages of your life. Imagine a question: If you were a 20-year-old dream, you would be able to achieve it a

Amazon AWS Lin Jiawei: How to Use the cloud to do disruptive things

--------- Left -- Lead: on October 21, June 7, the Chengdu division of innovation China was held at Chengdu Century City jiaozi International Convention Center. Lin Jiawei, head of Amazon AWS multinational corporations and Marketing Development Department, introduced how to use cloud to do disruptive things. Lin Jiawei, head of Amazon AWS multinational corporations and Marketing Development Department On October 18, June 7, the Chengdu division of "I

I did not know how to deal with some things in March, half a year.

to learn my favorite computers. It took nearly half a year to train, and I had to paste the money at home, my life went to February July of this year and I want to explain why I went to training. I can say that I only have a perceptual knowledge of programming, there is no actual development capability at all, let alone a project. In addition, if you need to charge your own resources and do not go to training, it is actually okay, but you just need to charge while working, maybe I have to pay a

10 Things to do after Ubuntu 11.04 is installed

Original article address: Http://www.omgubuntu.co.uk/2011/04/10-things-to-do-after-installing-ubuntu-11-04/ ___________________________________________________________________________________________________________________ If you have downloaded or upgraded to the latest Ubuntu release -- natty narwhal --, what should you do now? By convention, we will provide you with 10 tips and Suggestions after installation, so that you can use narwhal w

Design of a low-cost dairy quality chain traceability platform for the internet of Things

0 Introduction With the rapid development of the Internet of things technology, the information of dairy quality traceability is attracting attention, and the special system of dairy product traceability used in the well-known dairy enterprises came into being, but this large-scale platform is very expensive and the design details are directly aimed at large dairy farms, which is difficult to promote to the breeding community or cooperatives. And this

_はじまりの Wind in Choi Wan State of Things

: Ping Hirahara album: 4つのlはじまりの Wind (かぜ) one session (とど) けメッセージThe wind of all things, please pass this heart on for meいつでもあなたを Letter (しん) じているからUntil the everlasting, to you believe not to moveあの (とき) Dream (ゆめ) occupies (cups) ていた World (せかい) occupies (ちょっとたいま) っているのにThe first time on this piece, only in the dream to see the worldSee (みわた) Bamboo Blind (けしき) occupies foot (あし) すこIn the face of endless scenery, legs can't help shakingだけど (うし) hel

Chatting Internet of Things

Many people regard IoT as an Internet monitoring, an Internet data collection. On the surface, it's not wrong. The basis of the logistics network of course is to connect the device or module to the Internet, on this basis can be remote control, data acquisition and so on. But this is the base level. The second level of the Internet of Things is the use of data collected to diagnose the operation of the product, to provide more professional maintenance

9 things to do when a project manager needs to cultivate

is the project failure, members leave the project team. Therefore, as a project manager, is a kind of cultivation, the following are all need to slowly cultivate: 1, temper must be controlled well. Whether the team member does not complete the work on time or the customer is always changed, in short you have no reason to lose your temper, especially in front of team members in the face of temper; 2, don't panic. Project risk always exists, all kinds of problems are always there, big

Talk about the three-stream, the development team of those things--(1)

contact with programmers and teams, I think more representative of several pits:1, the surrounding PHP programmers are very much, and they only focus on PHP development, everything in PHP to solve, regardless of any other scenarios.2, the surrounding programmer for the difficulty of the project enthusiasm is very low, we push around, as if to who do suffer the same.3, some programmers focus on technology transfer to other places, but ignored the original intention, but they are very good mix.4,

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