在QUARTUS II 下用 MODELSIM 仿真的例子，用TEXTIO文件进行仿真，带读取数据的文本文件，注释也比较详尽。对初学仿真有帮助。-In QUARTUS II with MODELSIM simulation examples, simulation with TEXTIO file, a text file with read data, comments are more detailed. Simulation helpful for beginners.