学习使用波形比较功能的基本方法,ModelSim的波形比较的功能可以将当前仿真与一个参考数据（WLF文件）进行比较，比较的结果可以在波形窗口或者列表窗口中查看，也可以将比较的结果生成一个文本文件-Learning to use the wave function of the basic method of comparison, ModelSim wave function can be compared with a reference current simulation (WLF file) comparison of the results can be a window in the waveform window, or list view, you can also compare the results generated a text file