瓜瓜在线考试系统实现简单的在线考试功能，考完交卷即知得分及正确答案。 [程序编写说明] 有客户需要php+mysql的在线考试系统，在网上找了半天都是asp,jsp源码，所以我编写了php版本的。-Guagua online examination system to achieve a simple online test function, finished an assignment that is known score and the correct answer. [Programm