实现统计窗口中任意矩形内(含矩形上)点的代码的几种设计方案的代码.为了提高时间效率牺牲了较大的内存空间.并依此提供了优化代码的递进方案.-Statistics window to achieve an arbitrary rectangular (including rectangle) code point code of several design solutions. In order to increase time efficiency at the expense of large