基于SPICE的电路仿真系统接口程序设计

基于SPICE仿真引擎，提出利用VC语言编写接口程序实现电路分级仿真的方法，实现SPICE文件与数学运算程序包之间的数据传递，解决电路仿真系统仿真时钟不同步、特殊时间点仿真不收敛、数字器件不是单入单出，以及在SPICE仿真数字器件时没有可用模型等问题。实例验证了该方法的正确性和可行性。

Interface Program Design of Circuit Simulation System Based on SPICE

In E-commerce, the current punishment mechanisms of the trust models only aim at the false times to punish and ignore the importance of monetary value in transaction. This paper proposes a modified punishment mechanism based on E-commerce in P2P networks. The times and money of unsuccessful transactions are taken into account in this model, so that the deceiving behavior of malicious nodes aiming at bypassing penalty mechanism is flitted. The validity and robustness of the model are testified. Experimental results show that the trust model is better than other extant ones and can be efficaciously deployed in the E-commerce system.