是构造决策树分类器的一种算法，它是ID3算法的扩展。ID3算法只能处理离散型的描述性属性，而此算法还能够处理描述性属性是连续型的情况。-Decision tree classifier is constructed of an algorithm, which is an extension of ID3 algorithm. ID3 algorithm can only handle discrete descr iptive attributes, and this algorithm is