System interface is import for human-computer interaction. To some extend, the system interface determines the user experience. Most users do not care about the technical implementation details, but they care about whether the system meets the users’ needs and whether the page is simple or easy to use [6]. Based on the principles, we design searching page and results output page. Searching page contains query string input box and searching button. Query string input box is used to accept the user-entered query string. After searching button is triggered, the search engine system begins to work and present the related documents to
the results output page. In the results output page, every document presents four components: URL, title, document snippets and indexed time.