CapitalInfo
+ ID：String+ Password：String+ TotalAmount :String+ UsefulAmount：String+ FrozenAmount：String+ Locked：boolean
- Deposit()：boolean- GetMoney()：boolean
UserInfo
+ Registered()：boolean+ Login ()：boolean+ ChangePassword()：boolean- RequestAccount()：boolean- QueryCapital()：String
User
+ name：String+ UserID：String+Gender：String+Address：String+Career：String+Telephone：String+Degree：String+Password：String+Category：String
+ Registered()：boolean+ Login ()：boolean+ ChangePassword()：boolean
SecurityAccount
+ ID：String
-AccountCancellation()：boolean-AccountLost()：boolean
MangerAccount
+ Registered()：boolean+ Login ()：boolean+ ChangePassword()：boolean- RecordUserInfo()：boolean- BindingAccount()：boolean
CapitalAccount
+ ID：String+ password：String
- SetPassword()：boolean- ChangePassword()：boolean
