Then give the contract of Chinese stock index futures and the corresponding system, and give the theoretical pricing model of stock index futures.

接着给出了中国股指期货合约的试用模板及相应的制度规定，并给出了股指期货的理论定价模型。

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Firstly, the concept of transaction cost in stock index futures will be modified and we try to give pricing model of stock index futures considering various costs;

首先，对股指期货交易成本概念作出补充，并试图给出体现各种交易成本的股指期货定价模型；

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