实现了一个js的在线小测试，有时间限制，超时可超新测试一次。测试结束有分数及详细报告。-Js to achieve a small test online, there are time constraints, overtime can be a super-new test. The end of the test scores and a detailed report there.

基于完成端口的在线考试系统，socket+完成端口+WSAEVENT-Port based on the completion of the online examination system, socket+ port+ WSAEVENT completed