针对数字电路中逻辑函数真值表的特殊形式 ,利用粗集理论把它处理为一种决策表 ,用决策表的最小决策算法对其进行化简 ,然后从真值表中直接归纳出最简的逻辑表达式 .此方法简单、快速 ,特别适用于数字电路中从已知真值表求出相应的逻辑表达式及其对应的逻辑电路 ,为粗集理论在数字电路中的应用提供有力工具 Aiming at the special form of the truth function table of logic function in digital circuit, it uses rough set theory to process it as a kind of decision table, which is simplified by the least decision algorithm of decision table. Then, This method is simple and fast, especially suitable for digital circuits from the known truth table to find the corresponding logic expression and its corresponding logic circuit, for the rough set theory in the digital circuit provides a powerful tool