·Tieling classified information system is written in ASP+ACCESS+HTML+CSS and is a completely free classified information management system; ·The entire site uses caching to reduce reads from the database, thereby reducing server pressure; ·Some pages use template function (ASP code and page are separated). Users can easily write their own templates; ·Static function of classified information content pages, search engine optimization, reducing server pressure; · Customize information fields to make the website more flexible and the classified information more professional; ·The website integrates online payment functions, allowing users to easily pin information to the top; ·The information release page uses the most popular AJAX form validation program; ·The super powerful verification code program can minimize the occurrence of spam messages. In addition, it can also set areas that restrict the release of information; ·The website design is simple and beautiful, the html+css code is concise and compatible with various browsers, making the website faster and with better SEO effect; ·The website program is small but not lacking in speed and functionality;