Knowledge payment software APP development to find Guangzhou [Zhuang Sheng 158 electricity 1504 Wei 7940] Knowledge payment ready-made app development, knowledge payment ready-made small program Knowledge paid software introduction: 1. Classification of knowledge payment content presentation methods According to knowledge payment presentation methods, knowledge payment platforms can be divided into social Q & A, paid lectures, column subscriptions, community live broadcasts and other types. a. Social Q & A: The content producer answers a question raised by the user, and the platform extracts the corresponding *** from the Q & A. The types of questions and answers include c2c knowledge sharing discussion, integral type, and bidding reward type. The content production threshold is low, basically everyone can participate, the corresponding answers are uneven in knowledge, and the user's stickiness is low. For example, common platforms include Zhihu, answering, and Weibo Q & A. b. Paid lectures: Content producers choose a theme to share a single content, mainly audio, video, supplemented by graphics and text to share, the user can choose whether to pay for the purchase after the trial. For example, knowing live, Douban, sub-teaching, reading at ten o'clock, etc. are typical platforms. c. Column subscription: content producers launch long-term series of courses, lectures, etc. For a period of several months or a whole year, users need to purchase one-time. Therefore, such courses are usually expensive, but the knowledge content is also more professional and systematic. If the course is of high quality, the user's stickiness is high. For example, such platforms are available in Himalaya. d. Social Live Broadcasting: Content producers directly share content in the form of audio or video live broadcasts. It needs to be promoted and warmed up in the early stage of the course to attract some users to sign up to watch. Producers and users of this kind of course content can communicate directly with each other, and the interaction is very high. Representative platforms include Litchi micro-classes and Qianchao. Friendly reminder: Xiaobian is a professional development company, players do not disturb! ! ! ! Other professional software is welcome to consult! (Can be customized according to your needs) A digital refractometer is an instrument used to measure the refractive index of a substance. It works by shining a beam of light through a sample and measuring the angle at which the light is bent. The refractive index is then calculated based on this angle and the properties of the material being measured. Digital refractometers are commonly used in the food and beverage industry to measure the sugar content of liquids such as fruit juices and wine. They are also used in the automotive and chemical industries to measure the concentration of various fluids. Digital refractometers offer the advantage of being more accurate and easier to read than traditional analog refractometers. Digital Refractometer,Auto Digital Refractometer,Auto Portable Refractometer,Portable Automatic Refractometer Lachoi Scientific Instrument (Shaoxing) Co., Ltd. , https://www.lachoinst.com