Recently, I have been working on receipt printing. The project requirement is to implement it on both IOS and Android. I was confused when I started doing it. Then I found a lot of information on the Internet, stepped on a lot of pitfalls, and read a lot of articles. The result turned out to be okay. Bluetooth printers are generally divided into two printing modes, receipt printing and label printing. ...
Since the 5.20 confession, the owner has been missing ……. I don’t know how many months have passed, but the 3 in 1 is updated again. I set a flag in the group two months ago, and today I fulfill it, don’t ask me what I did in the middle two months -. - Don’t ask me what I was doing in the middle two months. Full text Because the network recognition often hangs, very unstable, there have been partners in the feedback with me, so this time specially updated the local recognition. Recommended 1G RAM above the machine installation, recommended configuration 2 core 2G, optimal configuration 16 core 32G [#manual funny] ...
I don’t know how everyone writes mini programs. I was writing WeChat mini programs a few months ago. I created a structure, or framework, by myself. The native architecture of WeChat is like this ├── app.js ├── app.json ├── app.wxss ├── pages │ │── index │ │ ├── index.wxml │ │ ├── index.js │ │ ├── index.json │ │ └── index.wxss │ └── logs │ ├── logs.wxml │ └── logs.js └── utils ...
1. Scenario: Query a player’s ranking and how many votes away from the previous one Method 2 (remove reordering and query the number less than yourself) $temp = DB::fetch_first(“SELECT distinct total+jewel_vote+forge_vote ,COUNT(*)+1 AS RANK FROM " . DB::table(‘vote_competition’) .” WHERE total+jewel_vote+forge_vote>" . $competition[‘all’] . " and aid={$aid} ORDER by forge_vote desc"); $rank = $temp[‘RANK’]; Unable to directly query the votes of the previous contestant if ($temp[’total+jewel_vote+forge_vote’]) { //What is queried here is the number of votes different from the first contestant. $up = $temp[’total+jewel_vote+forge_vote’]-$competition[‘all’]; } ...
I have been doing business related to WeChat some time ago. Although it is not a new technology, I have never had the opportunity to come into contact with it before. Then I stepped on some pitfalls and took the time to organize and record it. There are 7 types of WeChat payment, including: payment code payment, JSAPI payment, Native payment, APP payment, H5 payment, mini program payment, and face payment. WeChat JSAPI payment is used in this business: the user enters the merchant’s H5 page by scanning the QR code on WeChat, following the official account, etc., and calls JSSDK within WeChat to complete the payment. ...
2018 has come to an end The wish to become rich suddenly failed What’s even worse is that we have to complete an annual masterpiece ——Year-end summary Speaking of which, there is no year-end summary in this world. Since there are KPIs There is endless resentment The following is the text In Article Archive you can clearly see all the articles and the time they were published. There are articles published every month in 2018, and I come here to take a look almost every day. ...
Blog | Demo Site | QQ group | GitHub An online film and television application based on the elegant laravel framework and a girly UI that is not girly at all The author has something to say Although there are online movies and TV shows all over the Internet, this does not prevent me from writing one myself, so that it will be convenient for me to watch it later. After all, by doing it yourself, you can have enough food and clothing, and learn new knowledge, wouldn’t it be wonderful? ...
Payment received Collect Payment is a three-in-one integrated system of Alipay, WeChat, and QQ payment codes. Completed using thinkPHP5.0 + MySQL + layui Demo website: Collect payment Project address: GitHub Preface Whether it’s tutorials or ready-made codes, they are almost everywhere on the Internet. Why should I write my own? It is a set of words that includes uploading QR codes, identifying QR codes, generating three-in-one payment codes, and a complete set of process services. ...
I heard that only smart people can read this sentence. The password is behind the title of the article. Life is short and the world is big. Small Plane Assistant is a VPN proxy software assistant based on S*h·a·d·o·w·s·o·c·k·s. It has multiple built-in nodes and an availability rate of up to 80%. It can cross the Great Wall, the Great Wall, the Firewall, and achieve the purpose of accessing the Internet scientifically. ...
**Woothosting was acquired on April 1, 2019, please don’t buy it anymore (link is down) **Tencent cloud servers are safe, reliable and high-performance, with a variety of configurations for you to choose from 2aed6076dbae3172c0dc334fb67ec869&from=console) I bought my server from the above, so I highly recommend a wave. It’s also cool to buy a 3.99$ a year to build a yogurt (if you don’t know how to build it you can come to me) Warm tips: ...