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A review of unfinished work Didn't I go back to my old company last time? Then he took over a mall project and launched it in three weeks. The main function is the old shopping mall+member gift shopping mall+purchase identity+others (internal secrets, will not say, signed a letter of confidentiality). I have been developing for two weeks now, and will be online in two days. So why write this article? Answer: A week ago, I wanted to write a resume, but what I wanted to do at that time was to wait for the launch. But today, I have forgotten why I wanted to resume. Then today, we encountered a new problem, which is also a re inventory point worth recording. After re inventory, we can avoid this problem in the future. The text first describes the problem encountered today: the interface I developed is inconsistent with the business requirement interface required by the product. There are a lot of reasons. I don't want to explain. I just want to talk about how to improve it. When developing the interface in the future, try to think about what data this interface page will display, what data it will provide for that interface, and what states this interface will handle? What value needs to be passed by the front end? Do you want to log in? You should have a big picture before developing. That is, if you have a sword in your heart, you know how to do it. I was impatient and started to work when I got the demand. In the middle of the work, I found that I could not continue. I had to change from left to right, which was very troublesome. Then this time, the technical director personally instructed me to develop the mall, and I learned. He asked me not to rush to develop after I got the requirements. First, confirm the table models that I need to build according to the requirements prototype, and then confirm the interfaces and interface parameters that I need to provide according to the requirements page. Returning those interface parameters can ensure the normal development of the front end. It is very important to understand the needs first. Don't be too impatient. The so-called understanding is not what you think, but what the product thinks. Don't take it for granted that what you understand is what the product understands. You must communicate with the product first, and then model and provide interfaces. It's really important to be careful and not too hasty. This will not allow the test to test back and forth, modify and rework back and forth, and improve efficiency. Finally, come on. This is only the first time, not the last time. I will write a copy later to make progress. come on. -
Feelings of Season 1 Episodes 1, 2 and 3 of "The Valley of Riches Seeking a Turnover" The fund blogger mentioned above last night said what she thought of watching "The Valley of the Rich". I felt a little shocked. The reason is that I saw it when I used to brush the tone, but I was too busy at that time, so I didn't remember the name. I saw the name again today. I just have time, so I must go and have a look. As for why I want to see it, the reason is very simple. Now I want to make money, but there is no way to make money. So I want to see whether this video will give me some inspiration and whether there is an executable path. As I expected, it was indeed full of dry goods. Who can read this article? Readers at the primary stage and those at the intermediate and advanced stages can be regarded as jokes. What is the goal of the text? How is it executed? How to solve problems? How to find opportunities? To my feelings? What is the goal? The big goal is: 100w in 90 days. Have a small goal every week. How is it executed? The hero uses his mobile phone to learn about the buying and selling situation in the market, so as to know some market prices, and then goes to find some low price similar products to buy and sell. How to solve problems? The hero finds business opportunities by communicating with some small bosses, and then uses the existing resources to get help. After knowing that he cannot obtain the required license within the specified time, he immediately changes his mind, and then continues to use the existing resources to get help. The way I use this resource is refreshing. You know, I am a programmer now and know a lot of people, but these people are always just a pile of data on my friends list. This is my private resource, and I also have the public resource of the country. How to find opportunities? Through chatting with small bosses in different markets, we can understand the local product market, find out the demand first, and then adjust our direction according to the demand. 5. Feel for me? We must have a goal when we do things. We have had this goal since we were young. We have the goal of learning how to rank in exams and how much money we can earn when we go out to work. Once you have goals, you must first decompose them into executable goals at the current stage, and then execute your own goals. If you want to make money, you must buy low and sell high. What you pay in the middle is your own resources, realizing your own resources. It is often said on the Internet that you can never earn money beyond recognition, which may be the meaning. If you want to accomplish something, you need to know what you are doing, so you should do your homework first, rather than setting goals blindly. -
Report the recent situation of the past two weeks I wanted to write: report my recent situation to you. As a result, I am the only one in the whole blog. So why should I write this article? When I press the first character, I ask myself this. Maybe it is to give myself an explanation. Or maybe it is to explain to the future readers, or maybe this reader is n years later. Let's just say that I have to explain to myself, then why should I explain to myself? Because I have been enlightened in the past two years. In popular terms, I have opened my door and understood the relationship between life, goals and implementation. So I must write something to tell my heart what I am doing, whether my goal has been achieved, and whether I have carried out the plan. Well, back to the subject. In terms of work, I returned to my previous company. I am very happy now because I cut my salary by myself. I work with a learning attitude and ask questions if I don't understand anything. So it's still very comfortable. Of course, because the company is an outsourcing software development company, so the projects are in a hurry. The boss mostly tells me the skills of writing business, which can be quickly copied and developed. What used to take one week to do has been finished in half a day. It also shows the decoupling of business code by the Big Brother. I said a lot of nonsense for the readers, so the readers must have some harvest when they come, otherwise what should I do next time? At present, most of the company's business payments are WeChat, Alipay, balance payment, xx payment and a series of other payments. Competent people (what I learned from the company code) will make the payment module decoupled. Users only need to transfer parameters from the order module to the payment module. As for what the payment module does, it is not the order module that can care about. So how? Here's an example: the fields required by the payment module are: user ID, final payment amount, payment order number (or unique ID), and payment serial number. Then when the order module calls the payment module, you can do $ret=$pay ->pay ([ 'userid'=>$id, 'orderid'=>$orderid, 'money'=>$money, 'fllowid'=>$fllowid ]); Then the order module only needs to judge the result of $ret. At this point, the process of user initiated payment is completed. Then during asynchronous callback processing, the company will write a weixin.php to process WeChat logic, and then call $order ->payorder ([ 'orderid'=>$wxnotify['orderid'], 'paymoney'=>$wxnotify['amount'], .... ]) Alipay and balance are the same. So far, the code business logic has been decoupled. Super strong, learned. In terms of learning, because of working overtime every day recently (since returning to the company, working overtime every day), there is less in-depth learning. However, I still learned something. In the past two weeks, I have read the introduction grammar of python 3. The first feeling after reading is that I haven't seen it. The second feeling is that my eyes seem to know it, my hands seem not to know it yet. The third feeling is that there are six types. Three types can be changed, and three types can't be changed. There are also a bunch of commonly used modules. Finally, it is recommended that you should not let yourself idle without too much pressure, unless your family is thick enough to make you resist the worst situation in the next 10 years. -
Technical articles read this week Article IOC inversion of control: https://wizardforcel.gitbooks.io/gen-wo-xue-spring/content/50.html Index failure: https://blog.csdn.net/tc979907461/article/details/106390911 What to do when a federated index encounters fuzzy search: https://segmentfault.com/a/1190000015416513 Federated index https://www.cnblogs.com/rjzheng/p/12557314.htmlinnodb How to calculate the height of b+tree in: https://zhuanlan.zhihu.com/p/336020315 Relationship between index and data file: https://blog.csdn.net/boling_cavalry/article/details/85172258 How to store MySQL: https://juejin.cn/post/6844903970989670414 Key_len calculation method: https://www.cnblogs.com/xuanzhi201111/p/4554769.html Larravel test: https://baijunyao.com/articles/222 MySQL master-slave synchronization problem: https://blog.51cto.com/u_11676712/2494646mysql Some explanations: https://learnku.com/articles/25879 The fragment show table status like 'sp_job_log' G View the table status The non leaf nodes of the b tree will save data, but b+will not. B+is a two-way linked list data page, which consists of seven parts. File header, page header, fixed byte, user record, free space, page directory, end of file information (fixed byte is 128) The pointer in innodb is 6 bytes, and the primary key ID is x bytes, so the number of pointers that can be stored on a page is the default kb * 1024/6+x pointers for innodb pages. Each pointer corresponds to a page. Assuming that each data is 1kb, Each page can store 16 data clusters, which are generally 4K, 8K, 16K, 32K, 64K, etc. The larger the cluster, the better the storage performance, but the space waste is serious. The smaller the cluster, the lower the performance is, but the space utilization is high. The basic unit of the operating system read/write disk is the sector file system. The basic unit of the cluster technology innovation board daily bubble sorting. Compare two. Select sorting, and only find the smallest or largest Insertion Sort algorithm description is a simple and intuitive sorting algorithm. It works by constructing an ordered sequence. For unsorted data, scan from back to front in the sorted sequence to find the corresponding position and insert it. Quick sorting: select a value as the comparison number, and place the value with a high ratio on the right, and place the value with a low ratio on the left -
Folk custom: Five can't afford a house, six can't move, seven can't go out, eight can't go home. Is this superstition? I don't think so When I was just brushing the dithering sound, I came across a folk video: five can't afford a house, six can't move, seven can't go out, eight can't go home. Open the comment area and see a bunch of superstitious replies. I don't know how the people who are doing think about this matter, but I still have some views on this matter. I also share it with you today, and hope you can look at the problem rationally. First of all, I want to ask you a question: why is there such a saying as "five can't afford a house, six can't move, seven can't go out, eight can't go home"? Are the ancients all neurotic? Is it the ignorance of the ancients? Is it???? Secondly, why do we think this is superstition? Well, I'm the only one at present, so I ask myself: some readers will say that because the ancients read less, their cognition is limited, which naturally leads to this problem. It can be said that this is the truth, but it is not completely correct. The ancients had many problems, such as less reading, inconvenient transportation in ancient times. But no matter what the problem is, it can't stop people's yearning for a better life and for tomorrow. So when making an important decision, such as building a house (most people only live in one house in their life), such as going out (they always go out for 10 days and a half months, because of the inconvenient transportation), people always yearn for the lucky completion of this thing. In ancient times, people paid attention to the advantages of time, place and people, so when people went out, I always choose an auspicious day to go out. One of the purposes is to occupy the right time. Although the right time may not help, from the perspective of modern psychology, it is self suggestion. Today is a good day, and I am sure I can finish what I want to do smoothly. Therefore, people always choose a suitable day to do what they need to do. So why do modern people think this is superstition? This is because most people are unable to distinguish the rationality of things. The simple point is that they will be used by people who want to, so from a scientific point of view, this is superstition. But these folk customs also reflect people's yearning for a better life. Finally, I'm sorry, my ability is limited, the article is written in general, and may not convey the meaning, but if you can understand the meaning of it, it is excellent. Thank you for your reference: https://kknews.cc/zh-hk/culture/ya9xeqb.html
