股票交易系统，1）可以注册用户名、密码和注册资金；

2）注册后的股民可以购买股票；

3）股票的信息包括股票代码、股票名称、总股数、可交易的股数。-Stock trading system) can register a user name, password, and registered capital　2) the registration of the investors can buy shares　3) stock information includes stock code, stock name, total number of shares can be traded number of shares.