微信小程序——校园闲置交易平台的设计与实现Wechat small program -- Design and implementation of campus idle trading platform内容摘要校园闲置交易小程序是以微信中的小程序作为平台让校园内的人们进行闲置物品交易的一个具有交易跟交友功能的小程序。自己通过在大学生活中进行观察,发现许多大学生在网络购物平台进行购买物品时会存在过度购买的情况,因此会有闲置物品的产生。同时朋友圈里也发现有大量的二手交易群存在,需要出售时就需要加入这些群进行售卖。我们经常使用微信,而且小程序给了我们一种途径,如果有一种非常便捷的交易平台对物品进行平价或低价出售,就可以让闲置物品再次被他人使用,这样就不需要专门下载 app。在微信小程序的开发模式下,采用了 HTML、css、PHP、MySQL 等编程语言去实现闲置交易小程序的前端界面显示和与后端数据库的交互,满足了人们在微信平台上进行售卖的基本需求。关键词: 微信小程序 校园交易 闲置物品 二手AbstractThe campus idle trading applet is a small program with the function of trading and making friends, which uses the widget in wechat as a platform to let people in campus trade idle goods. Through the observation in college life, I found that many college students in the online shopping platform will have excessive purchase of goods, so there will be idle goods. At the same time, it is found that there are a large number of second-hand transaction groups in the circle of friends, and they need to be added to these groups for sale when they need to be sold. We often use wechat, and small programs give us a way. If there is a very convenient trading platform to sell goods at a low price or at a low price, we can let idle goods be used by others again, so we don't need to download apps specifically. In the development mode of wechat applet, HTML, CSS, PHP, MySQL and other programming languages are used to realize the front-end interface display of idle transaction applet and the inte...