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From: Install Swift and Vapor on Ubuntu 16.04 Introduction Swift is a programming language developed by Apple, characterized by fast, secure and modern, and it has a large community that supports language. Swift is primarily used to develop iOS and Mac OS applications, but you can also use it for server-side application development starting with Swift 3. Vapor is a popular server-side Swift Web framework, a

1. Download vapor software (binary installation file)Note: Note version, Linux can be in the terminal Input-uname-l View system version2.CD to Vapor Software directory3. Unzip:1) gunzip vapor-***-linux_x86_84.tar.gz2) Tar XF Vapor-***-linux_x86_84.tar3) CD vapor-***-linux_x8

See a tutorial on the internet, using vapor to build the service side, to record their own memo this article mainly records the following points1. Configure the Vapor2. Using Swift to write the Get,post method, return the JSON data3. Configure the local server, compile and run the browser access http://localhost:8080 view return data4. Deploy your own cloud server on Heroku, Access https://limice.herokuapp.com to view return dataI. Installation

1. View the current environment: ~ user$ eval "$ (curl-sl check.vapor.sh)"Normal situation? Xcode 9 is compatible with Vapor 2.? Xcode 9 is compatible with Vapor 3.? Swift 4.1 is compatible with Vapor 2.? Swift 4.1 is compatible with Vapor 3.The situation encountered? Xcode 9 is compatible with

above, and finally obtain 98% of the finished nitric acid by distillation. this production method is suitable for medium and small concentrated nitric acid production units and is widely used at home and abroad. hyperboiling acid distillation is a method that removes a large amount of water from the oxidation gas, so that NOx can directly generate hyperboiling acid and then produce concentrated nitric acid by distillation, it is regarded as a good method for making concentrated nitric acid. A d

mainly uses its temperature and resistance characteristics, that is, when the temperature changes, its resistance changes accordingly. The above-mentioned thermal resistors have a fixed temperature and resistance characteristics, generally we also known as the scale table. Another commonly used sensitive originals are thermistors with positive and negative temperature types.1.2 Humidity sensorHumidity is the amount of water vapor in the air, can be e

distribution hole of the idle oil road, change the structure of the Negative Pressure thickening to the negative pressure oil reduction ,~~~.3. Improve the throat nozzle into a shape with the effect of eddy current oil, and then with a new storage container produced in 08 years, so that the oil mist will be fully combined before entering the cylinder, improve the Engine Startup Performance and fuel saving rate.4. the carburetor can't be changed, so it can be changed to a plunger Type Carburetor

auxiliary axes. The most typical shape of the six-cubic system is six prism. However, when the spindle direction crystals develop slowly during the crystallization process, and the direction of the auxiliary axis develops rapidly, the crystals appear as hexagonal slices.Atmospheric water vapor in the crystallization process, is often the crystal in the direction of the main axis growth rate is slow, and three auxiliary axis direction is much faster,

Flaash atmospheric calibration (IRSP6-08.3.24) The purpose of Atmospheric correction is to eliminate the influence of air and light on the reflection of objects, and obtain real physical model parameters such as the reflectivity, radiation rate, and surface temperature of objects, it is used to eliminate the influence of water vapor, oxygen, carbon dioxide, methane and ozone on the reflection of Earth objects, and to eliminate the influence of atmosph

models. In GPS data processing, the observed data volume is very large. Generally, we only use the observed data with an elevation angle greater than 15. Therefore, most of the existing Skytop correction and ing function models can be used. The commonly used Saastamoinen 1973 model is as follows: The maximum latency of the task is as follows: Maximum humidity delay: Because the wet term model in formula 4.1 is inaccurate, A undetermined parameter can be introduced to change formula 4.1: 4.

water will change the sticker, used to determine whether the phone is caused by the fall of the damage (if red will be at their own expense to repair). At the same time in order to avoid damage to the iphone because of water vapor residue, the iphone wiped dry, and then use toilet paper rub image on the small note, stuffed into the phone all the small holes, cracks inside the water vapor suction dry, to av

Pacific Ocean Basin margins dropping to as low as 11 km below sea level. Most basin ranges from 4 kilometers to 6 kilometers in depth, and some narrow trenches at the edge of the basin near the Pacific Ocean can drop down to 11 kilometers below sea level. 370. But these motions are composed of a myriad of scales or groups of scales with time scales ranging from seasons to minutes. These movements are composed of a large number of different scales, or multi-scales. Their time scales from a fe

be time-consuming and time-consuming. Below is a piece of program I compiled using C # (only the main part, the source code is more than this ). Protected override void onpaint (painteventargs e) {base. onpaint (E); graphics G = E. graphics; pen p1 = new pen (color. black, 2); pen P2 = new pen (color. black, 1); drawrec (G, P1); drawmidline (G, P2); drawpinghengline (G, P2); drawjldandtldoperationline (G, P2); drawkedu (G, P2 ); drawjldandtldoperationline (G, P2); drawtaban (G, P1); p1.dispose

Sheltered by science-based on the Leiden effect, liquid nitrogen forms a layer of isolated gaseous layer on the surface of my skin, thus keeping my hands safe and warm in an instant.When I first saw a man's hand dipping in a photograph of liquid nitrogen (down to minus 320°), the first reaction was: This guy must be crazy! Put your hands in that thing for a second, you'll have to buy new skins! "But when I realized that the hand in the photo was my own hand, and this picture was just the fact th

must be 1-20 minutes long) Short Fan Wei, big, small, middle Excellent polarization information is direct, and rapid laboratory equipment and laboratory equipment are available. There is no limitation on wavelength dependence on the largest and smallest information of information, no limitation on wavelength information, no wavelength information, and no wavelength information. Table 2 Comparison of PMD measurement methods V. Advantages of Corning Single-Mode Optical Fiber PMD Corning's meter-

correction (reproduced) 1. Radiation Calibration 1. As ENVI 4.4 has a dedicated radiation calibration module, the actual operation is very simple. After opening the original TM image, selectBasic tools-preprocessing-calibration utilities-Landsat TM 2. Go to the next step and select Landsat 4, 5, or 7 Based on the sensor type. Obtain the data acquisition time, sun elevation, from the header file of the remote sensing image. If you use file-open external file-Landsat-fast to open heade

methods are studied. the actual circuit detection software and the environmental limits in detecting processes are also given.Key words:Relative humidity, sensor, IC, detect, microprocessor1. Sensor Characteristics of relative humidity detection1.1 comparison of common Humidity SensorsHumidity Measurement plays an increasingly important role in automation systems and many other technical fields. However, it is difficult to measure the humidity, temperature, and other physical parameters. The ma

grams, which is 81.5% of the Earth; the average density is about 95% of the Earth's. Venus has a very thick atmosphere with a surface pressure of 90 times that of the earth, mainly composed of carbon dioxide, accounting for more than 97%, in addition to a small amount of nitrogen, argon, carbon monoxide, water vapor, hydrogen chloride and hydrogen fluoride. Frequent discharge still exists in the atmosphere of Venus. Thanks to its dense atmospheric pr

vertically along the direction of the mold trace. Atmospheric corrosion is generally not as serious as acid or alkali leaching, can be removed by mechanical method or alkali washing. Atmospheric corrosion is mostly non-limiting, often prone to appear on certain surfaces, such as water vapor easily condensed in the lower temperature area or upper surface. When the atmospheric corrosion is serious, the cross section of the pitting is inverted mushroom-

]: Chloroacetic acid methyl ester [English name]: Methyl chloroacetate [English aliases]: Methyl chloroacetate | Chloro -acetic acid methyl ester [English aliases]: Methyl 2-chloroacetate physical and chemical properties [Density]: 1.238 g/ml at 25°c (lit.) [Boiling point]: 130°c740 mm Hg (lit.) [Melting Point]: -33°c [Molecular formula]: C3h5c