public 赤字用户(等级 state)
{
this.余额 = state.余额;
this.用户 = state.用户;
this.利率 = 0.0;
this.限 = -100.00;
this.限 = 0.00;
}
public 黄金用户(等级 state)
{
this.余额 = state.余额;
this.用户 = state.用户;
this.利率 = 0.05;
this.限 = 1000.00;
this.限 = 10000.00;
}
public 白银用户(等级 state) : this(state.余额, state.用户)
{
}