游戏内货币系统的数值如下：
K = 1,000
M = 1,000,000
B = 1,000,000,000
T = 1,000,000,000,000
aa = 1,000,000,000,000,000
ab = 1,000,000,000,000,000,000
ac = 等等
我们采用这套系统是为了让大数值更容易分辨和比较。