简单投票系统,投票的数据保存在Sql数据库中，只保存投票的项目及票数。本系统的实现是用户每投一次，将在数据库中对应的项目票数上加1。该系统数据源采用了SqlDataSource，其中自定义了很多方法和函数。-Simple voting system, the voting data stored in the Sql database, only to vote to preserve the items and the number of votes. Realize the system is to vote once for each user will be in the database corresponds to the item number of votes plus one. The system data source using the SqlDataSource, which a lot of custom methods and function.