数据结构和算法：包含各种算法，还有一个演示系统-data structures and algorithms : algorithms contained, a demonstration system

表结构，用分支语句计算过于繁琐，巧妙利用数组可以简化过程，下面以税收为例。-Table structure, calculated with the branch statement is too complicated, clever use of arrays can simplify the process, following a tax, for example.