中文说明：通过knn算法，实现WiFi室内定位在matlab环境下的仿真，程序带有完整的注释，并且可以直接运行，最后的显示结果是定位结果比较，即待定位点的准确坐标与定位结果的比较，显示在同一个图片上，达到对比的结果。
English Description：
The knn algorithm to achieve WiFi indoor localization simulation in the MATLAB environment, program with a complete set of notes, and can be run directly, end displays the results, namely more exact coordinates and positioning of the anchor, and appear in the same picture, to contrasting results.