A small program is a lightweight application that can run on the WeChat platform, and users can use it without downloading and installing it. Small program development requires mastering certain front-end technologies, including HTML, CSS, JavaScript, etc. This article will introduce in detail how to develop WeChat mini-programs from the following aspects.
1. Download and installation of small program development tools
The mini-program development tool is an essential tool for developing mini-programs. You can download the corresponding installation package from the official website (://developers.weixin.qq.com/miniprogram/dev/devtools/download.html). After installation, open the tool, you can see the following interface:
2. The creation and configuration of applets
In the applet development tool, click the “New applet” button, you can see the following interface:
Fill in the Mini Program name, AppID, project path and other information. Among them, AppID is the unique identifier of the Mini Program, which needs to be registered and reviewed in the WeChat public platform first. After filling in, click the “OK” button to create the Mini Program project.
3. Mini Program page design and development
The page development of the applet uses WXML language similar to HTML, CSS style sheet, and JavaScript scripting language. In the applet development tool, you can design the page in a visual way, or you can manually write the code.
1. WXML page design
WXML is a markup language similar to HTML, used to describe the page structure of applets. In the applet development tool, you can design the page in a visual way, or you can manually write the code. For example, the following code defines a simple page:
“`
Hello, World!
“`
2. CSS style sheet design
CSS style sheet is used to define the style and layout of the applet page. In the applet development tool, you can design styles in a visual way, or manually write codes. For example, the following code defines a simple style:
“`
/* pages/index/index.wxss */
.container {
text-align: center;
margin-top: 100px;
}
“`
3. JavaScript script development
JavaScript scripting language is used to realize the interactive logic and data processing of Mini Program pages. In the applet development tool, logic can be designed in a visual way, or code can be written manually. For example, the following code defines a simple logic:
“`
// pages/index/index.js
Page({
data: {
message: “Hello, World!”
},
onLoad: function() {
console.log(“Page loaded!”);
}
})
“`
Fourth, the debugging and publishing of small programs
The applet development tool provides a wealth of debugging tools, which can help developers quickly locate and solve problems. After the development is completed, the Mini Program can be released to the WeChat platform for users to use.
1. Debug
In the applet development tool, you can use the “Preview” function for debugging. Click the “Preview” button, a QR code will be generated, scan the QR code to preview the Mini Program in WeChat. At the same time, the development tool will automatically compile and upload the code to realize real-time preview and debugging. During the debugging process, you can use the “Debugging” tool to view logs, monitor variables, execute codes, and other operations to help developers quickly locate and solve problems.
2. Publish
In the Mini Program development tool, you can use the “Upload” function to publish the Mini Program code to the WeChat platform. Before release, a series of audits and tests are required, including code security, functional integrity, and user experience. After passing the review, the Mini Program can be published on the WeChat platform for users to use. At the same time, developers can use the data statistics and feedback system of the WeChat platform to understand the user’s usage and feedback, and help continuously optimize and improve the Mini Program.
Summary
A small program is a lightweight application that can run on the WeChat platform, and users can use it without downloading and installing it. Small program development requires mastering certain front-end technologies, including HTML, CSS, JavaScript, etc. In the applet development tool, you can design pages and styles in a visual way, or manually write codes. After the development is completed, debugging tools can be used for debugging and testing, and the applet can also be released to the WeChat platform for users to use. Developers can use the data statistics and feedback system of the WeChat platform to understand the user’s usage and feedback, and help continuously optimize and improve the Mini Program.
