未优化模式就是原生代码，其调式期间可以和源代码一 一对应，maxspeed模式则尽可能将操作放在寄存器内完成，并且有一定的算法优化；而最小代码模式则通过合并部分代码，尽可能的通过EBP比例变址寻址，完成对二维数组的访问。 -Model is not optimized native code, and its modal period of the source code can be one correspondence, maxspeed model is designed to operate on the registers as much as possible to complete, and there is a certain algorithm optimization　code model is the smallest part of the code by merging as much as possible the proportion of the adoption of EBP indexed addressing to complete the two-dimensional array access.